Samsung recently released its flagship Galaxy S21 Ultra, but this is not the company's only new smartphone. An entry-level model also appeared on the market - Samsung Galaxy A02s, which came to me for testing.
Galaxy A02s is a smartphone that has advantages, although the cost is relatively low. It is aimed at people who value the most important features. Despite this, the device still has mid-range basics, although the specs have been greatly simplified in the name of "affordability".
Specifications Samsung Galaxy A02s
- Display: 6.5 inches, PLS LCD, resolution 1600×720 pixels, 259 ppi
- Performance: Snapdragon 450
- Graphics: Adreno 506
- RAM: 3/4 GB
- Internal memory: 32 GB, expandable microSD
- System and software: Android 10 with One UI
- Main cameras: 13MP wide-angle + 2MP macro + 2M depth sensor
- Front camera: 5 MP
- Battery: 5000 mAh, 15W fast charging
- Connectivity: USB-C 2.0, GPS, A-GPS, GLONASS, GALILEO, BDS
- Dimensions and weight: 75.9 x 164.2 x 9.1 mm, 196 grams
- Price: 10 thousand rubles.
Huge screen
The screen is very large: 6.5 inches diagonal, resolution 720 × 1560 pixels. I don’t see any point in complaining about the graininess of the picture; it is much more important that the IPS screen is bright, not dim, and there is enough backlight for comfortable use in sunny weather.
Just in case, I’ll note that the phone has an automatic light control sensor and it works fine. In my opinion, a display with an oleophobic coating is not of the highest quality, but it’s better than nothing at all. The cutout for the front camera also remains, everything is in a modern spirit.
Contents of delivery
Inside the box, in addition to the Samsung Galaxy A02s smartphone, we only have a pair of headphones, 15 W fast charging and a USB Type-C cable. There is no protective film or case to protect the plastic back panel.
And I also note that the smartphone does not have a fingerprint scanner. Therefore, to protect your own data, you will have to either use face unlock, which is not very reliable, a pattern or a password.
How to use NFC
To use NFC, it must be enabled. Just like Bluetooth, it also needs to be kept turned on until the end of data transfer or any other use.
How to enable NFC on Samsung
To transfer links, contacts, photos, any other multimedia files and pay using a mobile phone, the NFC function must be enabled on both devices:
- Launch the Settings app from the Home screen or menu.
- Select NFC and payment.
- Tap the switch to enable NFC.
Switching on is carried out in three steps
How to share files
To transfer files, in addition to NFC, Android Beam must also be enabled:
- Open Settings from the Home screen.
- Select NFC and payment.
- Click Android Beam.
- Tap the switch to turn on Android Beam.
To work, activate Android Beam
Now open any file, click on the “Share” button and select Android Beam as the transfer method. Keep in mind that devices should be no more than 10cm apart from each other. The closer, the faster and safer the transfer will be.
To send an image or video, follow these steps:
- Open the Gallery.
Select Gallery - Select the file to transfer and open it.
Select the desired file - Bring your phone close to another device with NFC and S Beam enabled.
Transfer the file - Click on the screen. The transfer will begin immediately.
How to set up Samsung Pay
Samsung Pay only works on Galaxy flagships and A-series smartphones. Unlike Android Pay, which is available for any smartphone starting with Android 4, Samsung Pay can be used even on terminals that do not support contactless payment. In this case, the proprietary technology for emulating the magnetic stripe of the card is enabled.
To work with the application, an Internet connection is not required; all user data is stored on a special chip with a high level of protection. The developers took care of user safety by adding several levels of security when making purchases:
- Tokenization. This means that the application does not display card numbers. Instead, the phone stores a token - a digital code generated randomly.
- Authorization by fingerprint. All purchases are confirmed by scanning the owner's fingerprint. No other person will be able to use the cards attached to the phone.
- Samsung Knox. A security system that monitors possible threats and attacks.
How to link a card to pay for purchases
- Launch Samsung Pay, click "Launch".
Launch Samsung Pay - Add your fingerprint or PIN to Samsung Pay to confirm payment.
Create an identification method - When adding your first map, click on the map symbol.
Click on the picture of the bank card - Take a photo of your card or add card information manually, click “Next”.
Fill in your card details - Confirm your actions via SMS.
Enter the code from SMS - The system may require you to add a personal signature, please enter it. After this, the card will be ready for use. To pay, the owner will only have to:
- Enable NFC.
- Unlock screen.
- Bring your phone to the terminal.
- Confirm your identity by touching the fingerprint sensor with your finger.
All this takes no more than 30 seconds, which is very convenient. You can add up to 10 cards to one phone.
Design and appearance
The body of the Galaxy A02s looks like a polycrystal, with each substance divided by straight lines. For an entry-level smartphone, this design is unusual and interesting. There are several colors, among which black and blue look best, although many people also like white.
Externally, Samsung Galaxy A02s is the size of an M31 or A11, not so big, but not small either. The rear panel has a triple-camera module lined up in a row, which adds a sophisticated look to the less attractive plastic body. This is especially noticeable if you choose the black option.
The front panel with a 6.5-inch display has a waterdrop-shaped cutout for the front camera at the top. The side bezels are relatively small, although the chin is noticeably thick. On the right side there are volume keys and power/lock keys. On the left side there is only a SIM card tray, with a separate slot for a MicroSD memory card. At the top you will find only a microphone, and at the bottom there is a charging connector, 3.5 mm, a speaker and another microphone.
Simple and practical housing
The body of the Samsung Galaxy A02 is made of matte plastic, no gloss, and that's great. There are no traces or fingerprints left on the surface, and scratches will not appear either. I liked that they chose a corrugated surface; the back of the case turned out to be rough.
The phone, despite its large screen, turned out to be convenient. It is narrow enough that you can hold it with one hand without fear of dropping it, and it is also not slippery.
Budget display
The screen of the Samsung Galaxy A02s is very budget-friendly; it is a 6.5-inch PLS LCD panel, an analogue of IPS matrices from Samsung. The display here is the same as on the Galaxy A12 - the same resolution and motion blur effect when scrolling pages.
The brightness of the panel is okay, although on a sunny day it will not be very convenient to use the gadget due to reflections. The color temperature leans closer to blue tones when compared to the Galaxy A12, and there is almost no oleophobic coating or it is of terrible quality.
Samsung models with NFC 2021
- Galaxy A51;
- Galaxy A40;
- Galaxy A30;
- Galaxy A50;
- Galaxy A20;
- Galaxy A80;
- Galaxy A70;
- Galaxy Fold;
- X Cover 4s;
- Galaxy A71;
- Galaxy M31;
- Galaxy S10 Lite;
- Galaxy S 20 Ultra;
- Galaxy Note 10 Lite;
- Galaxy S20;
- Galaxy S20+ LTE;
- Galaxy A8;
- Galaxy Z Flip;
- Galaxy S10+;
- Galaxy S10e SM;
- Galaxy Note 10;
- Galaxy S9;
- Galaxy S9 Plus;
- Galaxy Note8;
- Galaxy S8;
- Galaxy S8 Plus;
- Galaxy C9 Pro;
- Galaxy C7 Pro;
- Galaxy C5 Pro;
- Galaxy C7;
- Samsung Galaxy C5;
- Samsung Galaxy A5 (2016);
- Samsung Galaxy S7;
- Samsung Galaxy S7 edge;
- Samsung Galaxy J5 (2016);
- Samsung Galaxy A9 (2016);
- Samsung Galaxy Note5;
- Samsung Galaxy S6 edge+;
- Samsung Galaxy A8;
- Samsung Galaxy S6 edge;
- Samsung Galaxy S6;
- Samsung Galaxy A7;
- Samsung GALAXY Note4 (Dual-Sim);
- Samsung GALAXY Note Edge;
- Samsung GALAXY Note4 (32GB);
- Samsung GALAXY S5;
- Samsung GALAXY Note3;
- Samsung GALAXY Grand 2;
- Samsung GALAXY Note II (LTE);
- Samsung Galaxy Note II;
- Samsung Galaxy J4 Plus 2018;
- Samsung GALAXY S III (LTE);
- Samsung GALAXY S III.
Cameras Galaxy A02s
The advantages of the Samsung Galaxy A02s include relatively good cameras, and the fact that the module does not protrude above the rear surface. Externally, it is almost the same as on models of the Galaxy S20 line. Although we get a three-lens system, only two are used for shooting: the main 13-megapixel (f/2.2) with autofocus and a 2-megapixel (f/2.4) macro camera, the third sensor is for depth.
During the day, the smartphone is capable of taking pretty decent pictures for its price, and each image has enough exposure and contrast to look nice. The subject is kept in focus and maintains an acceptable level of sharpness in both the foreground and background. The colors are pleasing to the eye, but only in good lighting.
The Galaxy A02s camera performs horribly in the dark, with photos appearing blurry and overexposed. They are strikingly different from what can be obtained with decent lighting. But, this is to be expected from a budget phone.
The device can shoot video up to 1080p at 30 frames per second with decent accuracy. It can be shared on social networks and also with friends. However, the lack of adequate image stabilization and post-processing makes the content a little shaky and less sharp.
These shortcomings are not deal breakers because buyers looking for a phone in this price range are not concerned with such things. Instead, they want a device that takes decent pictures when needed. And for this, A02s should feel right at home.
Photo examples
I will not look for details in photographs and try to describe shortcomings. This is because the cameras are just for show, they take photographs somehow, and thank you for that. The main camera in the Samsung Galaxy A02 is 13 megapixels, here are some examples of photos in different conditions.
Bright sun, even too bright:
Photo in a well-lit room with natural light:
As an addition, you can use an auxiliary 2-megapixel camera for macro photography, but the quality is really quite low:
The front camera is 5 megapixels, and its quality does not shine:
Software
The operating system in the Galaxy A02s is Android 10 with One UI 2.5 shell. We get all the basic interface features from Samsung, although there aren't some features like the Edge panel or Samsung Pay found on more expensive models.
In addition, the A02s lacks a fingerprint scanner and an NFC module, which also affects the functions and options of the system. At least there is face unlock.
How does NFC work on a phone?
Without knowing the details, you might think that NFC is an enhancement of Wi-Fi or Bluetooth technology. They have certain similarities. All three features provide wireless connectivity and data transfer. The difference is that NFC works through electromagnetic fields, while Wi-Fi and Bluetooth use radio transmissions. This is why the range of NFC is much lower than that of the other two technologies.
There are two types of NFC devices: active and passive. Passive devices, such as smart posters, product markers and contactless POS terminals, they store information for active devices to read, but cannot access external information itself. Active devices read the tag and automatically begin executing it.
Mobile payments
In a convenient way you can pay for the purchase of any small thing, as well as for a serious purchase.
Payment by mobile phone works on the same principle as regular bank cards that support the contactless payment function. To make a purchase, you now only need to bring your phone to the terminal and, depending on the selected mobile application for storing bank card data (Samsung Pay or Android Pay), unlock the screen, enter a PIN code or use a fingerprint.
Wireless data transfer
The secure data transmission system is safe for both users
Using NFC and Android Beam, you can instantly exchange: web pages, contacts, photos, videos, routes in Google Maps, etc. Sending will begin after you touch one phone to another and lightly touch the screen.
NFC tags
Tags are easy and convenient to use
Tags are small chips that contain instructions for mobile devices. As soon as the phone is in close proximity to the tag, it automatically starts executing the program written in the chip.
They can be used in different situations, here are the cases where they are really useful:
- A tag with a programmed Wi-Fi password. Guests only need to hold their phone up to the tag, which is left in a visible place, for the phone to immediately recognize the signal and connect to Wi-Fi on its own.
- A tag on the desktop that automatically puts the phone into silent mode, launching some of the applications necessary for work.
- A tag by the bed to automatically switch the phone to night mode.
Component Performance
The Samsung Galaxy A02s smartphone does not impress with hardware either. It has an old and entry-level Snapdragon 450 processor with 3/4 GB of RAM and 32 GB of internal storage.
Processor performance, to put it mildly, is not the highest. It takes some time between clicks and reactions on the screen, although the version with 4 GB of RAM is faster. The base Galaxy A02s model can only handle simple tasks.
This is confirmed by performance tests. In Geekbench 5, the A02s scores just 130 single-core and 485 multi-core. The Sling Shot Extreme OpenGL ES 3.1 graphics test gives a total of 440 points. These are pretty weak results.
Detailed technical specifications
Make and model
Make and model of the device, and alternative names (if any).
| Brand Device manufacturer company. | Samsung |
| Model Device name. | Galaxy A02 |
| Alternative names Other model names, if available. Sometimes the model is called differently, depending on the country or because of popular nicknames. | SM-A025F/DS SM-A025G/DS SM-A025M/DS |
Design
Appearance of the device including dimensions, weight, volume, colors and materials.
| Width The horizontal side of the device when used in standard orientation. | 75.9 mm (millimeters) |
| Height The vertical side of the device when used in standard orientation. | 164 mm (millimeters) |
| Thickness The cross-sectional size of the device. | 9.1 mm (millimeters) |
| Weight How much does the device weigh excluding the case, SIM and memory cards and other additional elements. | 206 g (grams) |
| Volume Approximate value calculated using the formula: length times width times height. | 113.27 cm³ (cubic centimeters) |
| Colors What colors is the device available in? | Denim Black Denim Gray Denim Red Denim Blue |
| Housing materials What materials is the body made of? | Plastic |
System on a Chip (SoC)
A system on a chip, a single-chip system (System on a Chip, SoC) is when several systems performing different device functions are connected on one chip.
| System on a Chip (SoC) A single-chip system that contains components such as a processor, graphics accelerator, memory units, communication interfaces, etc., as well as software for the operation of the system. | MediaTek MT6739V/WW |
Central processing unit (CPU)
| Central processing unit (CPU) The main component of the device is responsible for calculations and data processing. | ARM Cortex-A53 |
| Technical process What technological process is used to make the chip? The smaller the process technology, the better - the chips consume less power and generate less heat. | 28 nm (nanometers) |
| Processor size Processor capacity is a parameter that indicates how many bits of data a processor register processes in 1 clock cycle. This is usually 32 or 64 bits. | 64 bit |
| Instruction Set Architecture Instruction set architecture (ISA) is a programmable part of the microprocessor core used by software to control the operation of the processor. | ARMv8-A |
| Number of processor cores The processor can be either single-core or multi-core. The performance of the processor depends on the number of cores (threads). The more cores working simultaneously, the higher the power consumption, so in mobile devices all cores are used only under high load. | 4 |
| CPU clock speed Clock speed is the number of operations per second that a processor or its core can achieve. The higher the frequency, the higher the overall performance of the device, but performance also depends on the processor architecture and the number of cores. | 1500 MHz (megahertz) |
Graphics Processing Unit (GPU)
| Graphics Processing Unit (GPU) The graphics processing unit (GPU) is used to process and display graphics - 3D effects, games, interfaces and other visual elements. Due to the pipeline architecture, the GPU is many times more efficient in graphics processing than the processor. | PowerVR GE8100 |
| GPU clock speed Clock speed is the number of operations per second that the GPU or its core is capable of achieving. The higher the frequency, the higher the speed of the processor, and therefore the number of tasks it can solve. | 450 MHz (megahertz) |
Random access memory (RAM)
| Amount of random access memory (RAM) RAM (Random Access Memory, RAM, RAM) is temporary memory (works only while the device is running), which stores data and code for the operational operation of programs and applications. The more RAM, the more programs you can run simultaneously without loss of performance (there will be fewer “brakes”). | 2 GB (gigabytes) 3 GB (gigabytes) |
Built-in memory
Most mobile devices have built-in Flash memory, which is used as a storage for system data, the operating system, as well as user data - photos, videos, recordings and much more.
| Built-in memory capacity The higher the amount of built-in memory, the more games, programs, music, videos and your other files will fit in the device, especially the amount of memory is important when the device does not support memory cards. | 32 GB (gigabytes) 64 GB (gigabytes) |
Operating system
A mobile operating system (OS) is pre-installed software with a well-thought-out interface for user control of device functions.
| Operating system (OS) The operating system installed by default by the device manufacturer, as well as its version. | Android 10 |
| User interface User interface (UI - user interface) is usually a graphical shell that ensures the transfer of information between the user and the operating system. | OneUI 2.0 |
Battery
To operate autonomously, a mobile device requires a battery that powers all its components.
| Battery capacity The main characteristic of a battery is its maximum capacity, that is, the charge it can store. Capacity is measured in mAh (mAh, milliamp-hour). The higher the capacity, the longer the mobile device can work. | 5000 mAh (milliamp-hours) |
| Battery type Many types of batteries have been used in portable devices, but NiCd (nickel-cadmium), NiMH (nickel-metal hydride), and even more so SLA (lead-acid) batteries are already considered obsolete. Instead, modern mobile devices use Li-Ion (lithium-ion) and Li-Pol, Li-Poly (lithium-polymer) batteries. | Li-Ion (Lithium-ion) |
| Power adapter Characteristics of the charger (adapter, power supply) included in the standard package of the mobile device. More precisely, the output voltage in volts (V) and the output current in amperes (A). | 5 V (volts) / 1.5 A (amps) |
Screen
The screen (display) is the main element for displaying graphic information.
| Technology The technology used to make the screen. There are many types of display manufacturing with their pros and cons. | TFT |
| Diagonal The screen diagonal of a device is measured in inches (inch, in or simply ″), and 1″ is equal to 2.54 cm. | 6.5 in (inches) 165.1 mm (millimeters) 16.51 cm (centimeters) |
| Width Approximate screen width | 70.68 mm (millimeters) 7.07 cm (centimeters) |
| Height Approximate screen height | 149.21 mm (millimeters) 14.92 cm (centimeters) |
| Aspect Ratio Aspect ratio is the ratio of the shorter side of the screen, which is considered to be 1, to the longer side, which is denoted by a decimal fraction indicating the ratio to the short side. | 2.111:1 |
| Screen resolution Screen resolution is the number of horizontal pixels (dots) multiplied by the number of vertical pixels. The higher the resolution, the more detailed the image will be. | 720 x 1520 pixels |
| Pixel Density The number of pixels per inch or PPI (pixels per inch) indicates the density of pixels per 1 inch (2.54 cm) of the screen. The higher the PPI, the sharper the image, and the less visible or even invisible “squares and dots” (pixels). | 259 ppi (pixels per inch) 101 ppcm (pixels per centimeter) |
| Color depth Color depth means how many bits are used in 1 pixel to display color (bits per pixel). | 24 bit 16777216 colors |
| Screen area Approximate usable area occupied by the screen on the front of the device. The higher the percentage, the narrower the frames around the display or the smaller the “chin with bangs.” | 84.99% (percent) |
| Touch screen A touch screen is a device that usually covers the display and is a touch input tool. In fact, in mobile devices, the touchscreen is a replacement for the keyboard and mouse. | Yes |
| Touch screen type There are many types of touch screens, with their pros and cons. Mobile devices often use capacitive touchscreens, but technology does not stand still and new types of sensors are appearing. | Capacitive |
| Multi-touch Touch screen support for two or more touches. For example, zooming photos with two fingers. | Yes |
Main camera
The main camera, usually built into the rear of the device, is designed for creating photo and video content.
| Maximum image resolution This is the maximum number of pixels (dots) horizontally and vertically. The higher the resolution, the more detailed the image will be. Resolution can also be indicated in megapixels - this is the total number of pixels that can be in the image, calculated by the formula: vertical pixels multiplied by the number of horizontal pixels and divide the resulting amount by 1 million. | 4160 x 3120 pixels 12.98 MP (megapixels) |
| Matrix type There are two main types of photomatrix, CCD (Charge-Coupled Device) and CMOS (Complimentary Metal-Oxide Semiconductor). Mobile devices mainly use a CMOS matrix - it requires less space, has low power consumption and heating. Recently, new types of sensors have begun to appear, for example PureCel from OmniVision. | CMOS (complementary metal-oxide semiconductor) |
| Matrix size The larger the physical dimensions of the sensor, the larger pixels can be installed there or the greater their number, increasing the luminous flux and exposure. That is, the larger the size, the better. | 1/3.1″ |
| Matrix pixel size Pixel size is one of the matrix parameters that determines what size pixels are used in the matrix. The larger the size, the better - less noise and a larger light-sensitive area. | 1.12 µm (micrometers) 0.001120 mm (millimeters) |
| Focal length Focal length is the distance from the center of the lens to the image sensor. | 28 mm (millimeters) *(35 mm / full frame) |
| Diaphragm Aperture (f-number, f) is used to control the light flux passing through the lens. The aperture is indicated by a fraction, and the smaller the fractional number, the higher the aperture passing through the lens. The more light that passes through the lens, the better overall, less noise in your photos and better night photography. | f/1.9 |
| Flash type Most mobile devices are equipped with light-emitting diode (LED) flashes, but there are also xenon flashes. As a flash, xenon is better - it is more powerful, but LED is more versatile (can work as a flashlight) and consumes less electricity. | LED |
| Maximum video resolution This is the maximum number of pixels (dots) horizontally and vertically. The higher the resolution, the more detailed the image will be. | 1920 x 1080 pixels 2.07 MP (megapixels) |
| FPS video recording at maximum resolution FPS (Frames per Second, frame rate) is the number of frames that changes in 1 second. The higher the number of frames per second, the smoother the image will be. In this case, we mean the number of frames that the camera can achieve at its maximum resolution; the lower the resolution, the higher the FPS can be. | 30 fps (frames per second) |
| Presence of flash Incorporating a flash into a mobile device allows you to take pictures in low light conditions. Creates the necessary lighting and compensates for the lack of natural light. | Yes |
| Digital zoom With digital zoom (zoom, enlargement), the subject is brought closer due to software image algorithms. The higher the magnification with digital zoom, the worse the image quality (noise, blur) will be compared to a non-zoomed one. | Yes |
| Focus on face Function of auto-detection of living objects and autofocus on their face or head. | Yes |
| Panoramic shooting mode Panoramic photography is a series of frames where each subsequent frame is a continuation of the previous one; at the end of the shooting, all frames are stitched together at the software level to create a panoramic photograph. Frames can be shot both vertically and horizontally, and their width can be up to 360 degrees. This type of shooting is used when the camera's viewing angle is not enough to capture the entire scene. | Yes |
| HDR shooting mode HDR photography takes a quick series of shots with highlights, midtones, and shadows, then combines them into a single frame with high dynamic range. | Yes |
| White balance White balance is a setting that helps ensure the correct color reproduction in an image by determining the color temperature of the light source in the frame. The balance can be set either automatically or manually. | Yes |
| ISO Setting ISO is the level of light sensitivity. The lower the ISO, the less sensitive the camera's light sensor and the smoother the image with less noise. The higher the ISO, the higher the light sensitivity, but more noise, graininess, or decreased sharpness. | Yes |
| Additional Information Additional information about the functions and characteristics of cameras. | Autofocus Continuous shooting Geo-tagging Touch focus Exposure compensation Self-timer Scene select mode Macro mode |
Additional cameras
Secondary cameras allow you to expand the capabilities of the main camera, such as adding a wide shooting angle, sharpness, optical zoom and other functions depending on the type of secondary camera.
| Second additional camera | 2 MP (megapixels) |
Front-camera
The front camera of a mobile device (selfie camera, rear camera) is a camera on the front part, which is usually used for video communication, recognition of gestures or faces, and selfie photographs.
| Photo resolution The maximum image resolution that the camera can produce. As resolution increases, image detail increases. Resolution can also be indicated in megapixels (the total number of pixels that an image can consist of) - these are vertical pixels multiplied by horizontal pixels and divided by 1 million. | 2560 x 1920 pixels 4.92 MP (megapixels) |
| Diaphragm An aperture (or aperture) is essentially an adjustable baffle to control the amount of light passing through the lens. The aperture is indicated by a fraction, and the smaller it is, the more light passes through the lens, which has a positive effect on photographs - there will be less noise and better night photography. While the main cameras also come with an adjustable aperture, most front cameras have a fixed aperture. | f/2 |
| Video resolution This is the maximum resolution the camera can record video at. The higher the resolution, the better. | 1280 x 720 pixels 0.92 MP (megapixels) |
| Frame rate (FPS) of video shooting This is talking about FPS at maximum video resolution; at lower resolutions, the frame rate per second can be higher. FPS determines the smoothness of the video, as well as the ability to speed up or slow down it. | 30 fps (frames per second) |
| Face unlock This is a new way to unlock your phone using facial recognition | Yes |
| Additional Information Additional information about the functions and characteristics of cameras. |
Memory card
A memory card (flash card) is an external data storage device that is used in many devices to increase memory capacity.
| Memory card type and formats Mobile devices usually use 3 types of memory cards - SD, miniSD and the most common microSD. Each type has its own formats that the device supports. | microSD microSDHC microSDXC |
SIM card
Subscriber Identification Module (SIM) used in mobile devices to identify subscribers in cellular networks.
| Type, size of SIM card A regular (mini SIM) card has dimensions of 25x15 mm. Micro SIM - 15x12 mm. Nano SIM - 12.3x8.8 mm. The sizes of SIM cards are different and not interchangeable. There is also an eSIM (virtual, electronic SIM card), it is built into the device and does not take up space. | Nano-SIM (4FF - fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm) |
| Number of SIM cards How many SIM cards does the device support? | 2 |
| Additionally Additional information about the operation of SIM cards in the device. | Dual SIM stand-by (Both cards are active. When one is busy talking, the other is deactivated.) |
Mobile networks
This is a system in which communication and data transfer is carried out between subscribers, the location of one or more of which changes. This section lists the supported mobile communication standards and frequencies.
| GSM GSM (Global System for Mobile Communications) is a standard for digital mobile cellular communications of the second generation 2G with time and frequency division of channels. GSM came to replace analog cellular communications 1G (first generation). | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) |
| LTE LTE (Long-Term Evolution, often referred to as 4G LTE) is a standard for wireless high-speed data transmission, which, although it belongs to fourth generation networks (4G), is essentially a transitional stage from 3G to 4G, greatly accelerating data transfer speeds. The standard has an improved version, LTE Advanced (LTE-A), which can already be considered a full-fledged 4th generation network. | LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) LTE-FDD 2100 MHz (B1) |
| WCDMA WCDMA (W-CDMA, Wideband Code Division Multiple Access) is a third generation mobile communication standard (3G), which is an add-on to GSM and provides high-speed Internet access. | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 2100 MHz (B1) |
Mobile network data standards
What data transfer standards in cellular networks are supported by the device, as well as their speed.
| Data transmission technologies Technologies for receiving and transmitting data, as well as their maximum speed. | UMTS (384 kbit/s) EDGE HSPA+ LTE Cat 4 (51.0 Mbit/s, 150.8 Mbit/s) |
WiFi
Wi-Fi (Wireless Fidelity) is a technology for wireless data transmission over a local network among devices based on IEEE 802.11 standards.
| Wi-Fi Hot-Spot A hotspot is a Wi-Fi access point. In a mobile device, Hot-Spot turns the smartphone into a Wi-Fi access point, essentially turning it into a router capable of distributing the Internet. | Yes |
| WiFi Supported WIFI wireless network standards. | 802.11b (IEEE 802.11b-1999) 802.11g (IEEE 802.11g-2003) 802.11n (IEEE 802.11n-2009) |
Bluetooth
Bluetooth (BT, bluetooth (z), “blue tooth”) is a short-range wireless network (up to 10, sometimes 100 meters) operating on radio waves to transmit voice and data between devices.
| Bluetooth version Bluetooth technology is actively developing and, since 1998, has been constantly updating versions of the standard. Each subsequent version introduces one or several improvements in data exchange speed, range, facilitates pairing, reduces power consumption, or introduces some new protocols and operating profiles. The higher the Bluetooth version, the better. The technology is also backward compatible, for example, if your mobile device has version 5.0, then it will work with accessories version 4.2 and lower, but the improvements introduced in version 5.0 will not work; they will work only if both the device and accessories are version 5. | 4.2 |
| Bluetooth Low Energy (BLE) Bluetooth LE is a low energy BT protocol specification. | Yes |
| A2DP profile The A2DP Bluetooth profile is designed to transmit a high-quality two-channel stereo signal via Bluetooth to wireless headphones, speakers and other acoustics. | Yes |
Sensors
Modern devices have many sensors that help in measurements, trigger functions, and make using the device more pleasant.
| Light sensor The light sensor reacts to the light level and is able to adjust the screen brightness automatically based on this. This is necessary to reduce power consumption and ease of use of the device. | Yes |
| Proximity sensor The proximity sensor reacts to the proximity of the mobile device to some object. For example, the sensor is used when talking on the phone to turn off the screen, which saves energy and prevents you from pressing buttons with your ear or cheek. | Yes |
| Accelerometer An accelerometer is a sensor that measures apparent acceleration, that is, it determines the position and distance at which a mobile device moves in space. Based on the data from this sensor, the screen orientation change, pedometer, control using tilts and gestures in games and applications, etc. work. | Yes |
| Additional sensors |
Audio
Audio - characteristics and capabilities of a mobile device in terms of sound.
| Music speaker There are two types of speakers in mobile devices - auditory and musical. The auditory speaker (speaker) is used for conversation, the music speaker (buzzer) is used to play music and sounds. | Loudspeaker Headphone—- Dolby Atmos |
Radio
The radio in a mobile device can be built-in by the manufacturer (catch local radio channels, no internet required, often works only with headphones (as an antenna), but not always) or installed as an online application (requires internet, but more channels and often better quality) .
| Built-in radio Is a radio tuner integrated into the mobile device? | Yes |
Navigation and location
The location is determined by satellite navigation systems that track the device's autonomous geospatial location at multiple points. The most common satellite navigation systems are GPS, GLONASS, and the Chinese BeiDou.
| GPS GPS (Global Positioning System) is a global satellite navigation system that can determine the position of a mobile device, build routes and find the desired object on the map with an accuracy of several meters. | Yes |
| A-GPS A-GPS (Assisted GPS) is an assistive technology that will help you quickly find the location of your cellular device without waiting for satellite data, which is especially important in indoors and cities. Location is determined in various ways, for example, Wi-Fi access points, mobile towers, bluetooth and others. | Yes |
| GLONASS GLONASS is a Russian Global Navigation Satellite System, which is similar to GPS and works in tandem with it, increasing the accuracy and speed of navigation. | Yes |
| Additional navigation systems |
USB connector
USB (Universal Serial Bus) is a serial interface for connecting peripherals to computers, smartphones, laptops and much more. The interface allows you to exchange data and power a peripheral device with energy, as well as connect several peripheral devices to one USB connector at once.
| Connector type What type of USB connector is used in the device. | Micro USB |
| USB standard The higher the standard, the faster the throughput, or more precisely the data exchange rate. With version 3.0 of the standard, the current was increased to 0.9A, eliminating the need for additional power for some devices. | 2.0 |
| USB Mass Storage Connecting a mobile device via USB as a data storage device. That is, when you enable this mode, your device can be used as a flash drive. | Yes |
| Additional characteristics Additional features of the USB connector, for example, OTG, whether the connection is supported, peripheral devices and additional memory. | Charging via USB |
Headphone jack
A TRS headphone jack (or jack) is a common standard of connectors used for transmitting audio signals. By diameter there are jack (6.5 mm), mini-jack (3.5 mm) and micro-jack (2.5 mm). In mobile devices, the 3.5mm jack was considered the most popular and widespread, but recently they began to be removed, leaving only USB connectors, through which headphones are connected with a corresponding plug or using adapters.
| 3.5mm headphone jack Does the device have a 3.5 mm audio jack? | Yes |
Connection and synchronization
Options for synchronizing your mobile device and connecting it to other devices.
| Connection, synchronization Types of synchronization and connection technologies supported by the device. | Computer sync OTA sync Tethering VoLTE |
Browser
A browser is a browser program for viewing sites and their content on the Internet. Through the browser, you can open websites, search for information, download necessary files, watch streaming videos, play browser games, etc.
| Technologies Markup and programming languages supported by the built-in (standard) browser. For mobile devices, you can install additional browser applications if the standard one does not suit you. | HTML HTML5 CSS 3 |
Audio file formats/codecs
Mobile devices support many audio file formats, as well as codecs for playing them.
| Default formats The formats that the mobile device supports out of the box are indicated. But if the device does not support the format you need, then you can try adding support for it. Sometimes support depends on the technical characteristics of the device (“hardware”) and nothing can be added here, but often the ability to process a particular audio format depends on the software part. You can install another audio player or codec set separately. | AAC (Advanced Audio Coding) AMR / AMR-NB / GSM-AMR (Adaptive Multi-Rate, .amr, .3ga) AMR-WB (Adaptive Multi-Rate Wideband, .awb) eAAC+ / aacPlus v2 / HE-AAC v2 FLAC (Free Lossless Audio Codec, .flac) M4A (MPEG-4 Audio, .m4a) MIDI MP3 (MPEG-2 Audio Layer II, .mp3) OGG (.ogg, .ogv, .oga, .ogx, .spx, . opus) WMA (Windows Media Audio, .wma) WAV (Waveform Audio File Format, .wav, .wave) |
Video file formats/codecs
Video file formats that the device supports and is capable of decoding and playing.
| Default formats Video file formats that the device is capable of playing with standard firmware and a standard (built-in) set of programs. Not all formats are supported by default, but you can install a third-party video player and/or set of codecs. | 3GPP (3rd Generation Partnership Project, .3gp) 3GPP2 (3rd Generation Partnership Project 2, .3g2) AVI (Audio Video Interleaved, .avi) Flash Video (.flv, .f4v, .f4p, .f4a, .f4b) H. 263 H.264 / MPEG-4 Part 10 / AVC video H.265 / MPEG-H Part 2 / HEVC MKV (Matroska Multimedia Container, .mkv .mk3d .mka .mks) MP4 (MPEG-4 Part 14, .mp4, .m4a, .m4p, .m4b, .m4r, .m4v) VC-1 VP8 VP9 WebM WMV (Windows Media Video, .wmv) WMV7 (Windows Media Video 7, .wmv) WMV8 (Windows Media Video 8, .wmv) Xvid |
Autonomy Samsung Galaxy A02s
But the battery of the Galaxy A02s is excellent. Its battery life in the PC Mark test is almost 17 hours, largely due to its capacity of 5000 mAh.
An excellent indicator, you can charge the battery in the morning and forget about the charger until the next day. Even with intensive use, the A02s should provide at least a full day of autonomy.
In addition to this, it supports 15W fast charging technology, so within about 30 minutes, you will get 40 to 50% charge. However, Realme and Xiaomi are more generous when it comes to fast recharge technology.
Tsar Battery
The smartphone is charged via microUSB, an old type connector, but this can be attributed to the status of the phone. An entry-level model, no Type-C allowed. However, you can rarely charge it: with a 5000 mAh battery you can count on three days of operation. The scenario is something like this: about an hour of watching YouTube videos a day, an hour of music, a little correspondence via instant messengers.
The Galaxy A02 does not support fast charging; the smartphone is equipped with a low-power 7.8 W power supply. Therefore, charging takes a long time and the easiest way is to do it at night when the phone is not needed.
Bottom line
Samsung Galaxy A02s costs about 10 thousand rubles, and in this price segment there are smartphones that are more powerful in their characteristics. The hardware here is quite weak and is only suitable for performing the most basic tasks.
But, the gadget has a great design, as well as a convenient One UI interface. Another advantage of the Galaxy A02s is its incredibly durable battery, which lasts for 17 hours of battery life, although charging takes more than two hours.
Is it worth buying?
If you are looking for a budget phone that you can simply use for basic tasks, then Samsung's Galaxy A02s is for you. The target audience will also appreciate the 5000 mAh battery.
Yandex Market
What's in the options list?
Let's take a look at the phone's other features. Navigation: sees satellites, searches quickly on the street, determines location without fail. You cannot pay for purchases in stores with your phone; it does not have NFC. There are two slots for SIM cards, with a separate microSD tray, a convenient detail.
As for the entertainment part, the phone has a mono speaker at the bottom end, and there is also a 3.5 mm headphone port. You can listen to FM radio if you connect a wired headset.
But a lot of additional software is preinstalled in addition to the usual set of Google and Microsoft applications. Here's what I found: “My Office”, KIS, “State”, “VKontakte”, “Marusya”, ICQ, “Mail.Ru News”, 2GIS, “Yandex.Zen”, “Mail.Ru Mail”. All this stuff can be deleted if desired, freeing up some memory.
Summary
The Samsung Galaxy A22 leaves the impression of an almost perfect inexpensive smartphone: a 90 Hz screen, enough performance for games, an optically stabilized camera, a two-day battery and fast charging in the box. In addition, it has a decent, expensive appearance. There is only one thing that can stop you from purchasing it - the HD screen resolution. For many, this characteristic is at the forefront. If this is the same for you, then take a look at the Samsung Galaxy A32 - it is a little more expensive, but the Full HD+ screen and a richer set of cameras.
Connection
Being a representative of the middle class, the Samsung Galaxy A22 did not receive any special communication modules - you need to look for them in flagship-level smartphones. 4G, GPS, Wi-Fi, NFC, Bluetooth - everything is usual, standard equipment.
But there are still barely noticeable features: the Samsung Galaxy A22 has an audio jack for headphones, FM radio and a full-fledged tray for two SIM cards and a flash drive, which is rarely found among Chinese competitors.
Extraordinary design
Samsung designers did a great job on the appearance of this smartphone. They tried to make it different from a budget device - and they succeeded. Samsung Galaxy A12 is made of plastic, but the back panel has two types of texture. The upper three-quarters of the “back” have a nice ribbed surface, while the lower quarter is simply matte. The smartphone looks extraordinary and fresh, and is also practical - it doesn’t get scratched, doesn’t get dirty, and feels great without a case.
The quad camera is inscribed in a square tile and protrudes slightly beyond the body. The fingerprint scanner is built into the power button, which is on the right edge - the most convenient place for this sensor.
The front is nothing special - a flat, elongated screen and a drop-shaped cutout for the front camera. Some criticize Samsung for this cutout - they say that even in the more affordable Galaxy A01 they made a fashionable cutout-hole in the upper left corner, but here it’s somehow old-fashioned. But we don’t see anything wrong with the droplet and don’t consider it “outdated.” This is just one of the modern solutions, and an elegant one at that.
Current Android version
When you turn on the Samsung Galaxy A12, you will see Samsung's One UI Core 2.5 system based on Android 10 Q. There will definitely be an update to Android 11. The Samsung Knox personal data protection system is supported - a unique feature of Samsung smartphones.
Since the law requires that domestic applications be installed on smartphones in advance, on the Samsung Galaxy A12 you will already find Yandex with Alice, Zen, Mail.ru Mail and 2GIS. Nothing extra. If you are buying a smartphone for a child, install the Samsung Kids secure environment from the Galaxy Store app library.
Basic NFC Features
Near Field Communication, or short-range wireless communication, allows you to transfer various types of data between compatible devices.
The module built into the phone can be multifunctional. After installing the appropriate application, various manipulations occur with ease:
- files are transferred;
- purchases are paid for;
- tags are scanned and programmed.
Devices that have an NFS chip built into them can exchange data (contacts, links). The Android Beam program helps you transfer or receive files.
Many people like to program their phone to do different things, for example, turn an alarm on or off, send a message, log into the player, or start Wi-Fi. To program the tag, you will need a program such as Task Launcher.
If you link a bank card to a contactless mobile application, you can use your smartphone for instant payment.
Attention! For successful transactions, it is important that there is a PayPass terminal at the point of sale.
You are also allowed to add here:
- corporate cards;
- certificates;
- discounts;
- travel cards;
- electronic keys, etc.
You can store all of the above on your phone. If necessary, just unlock and bring the smartphone to the reader.
