Samsung Galaxy A51 5G Specifications, Tests and Review

Display
6.5", 2400 x 1080
Front Camera
32 Megapixel
Main Camera
48 Megapixel
Storage
128 GB
RAM
6 GB
Battery
4500 mAh

Get the key specs, technical data, ratings and full review of Samsung Galaxy A51 5G all in one place. Compare your selected model with other alternatives and give your decision on the best phone a solid base with our comprehensive overview.

DESIGN AND DIMENSIONS Samsung Galaxy A51 5G
Product Type Smartphone
Manufacturer Model Number SM-A516B/DS
Form Factor Touch
Height 158.9 mm Better than 85 % of phones rated.
Width 73.6 mm Better than 72 % of phones rated.
Depth 8.7 mm Better than 69 % of phones rated.
Weight 187 g Worse than 82 % of phones rated.
Body Colour Prism cube black | Prism cube white
Waterproof (Water-resistant) -
SAR Value 1.555 W/kg (body), 0.496 W/kg (head)
Connector Type USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Nano SIM
SIM Card Qty Dual-SIM
SIM Card Configuration Details Nano SIM + nano SIM/microSD

The Samsung Galaxy A51 5G has dimensions 158.9 mm × 73.6 mm × 8.7 mm. Its weight is 187 g.

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DISPLAY Samsung Galaxy A51 5G
Display Type OLED display
Display Technology Infinity-O Super AMOLED
Screen Size (Display Size) 6.5" Better than 91 % of phones rated.
Screen Resolution (Display Resolution) 2400 x 1080 pixels Better than 91 % of phones rated.
Display Format Full HD+
Colour Depth 16.7 million colours Better than 98 % of phones rated.
Display Features Edge-to-Edge screen

The screen size reaches 6.5" inches. With a large display, phone offers a great experience for watching videos, playing games and reading. The best phones today are 6.5'' or more. They have the advantage of a large display area that allows you to see more content than with conventional display sizes. Owing to OLED technology, the display offers a true representation of colours, especially black. The resulting contrast is significantly higher and colours appear more vivid. OLED technology is now part of most smartphones, while LCD displays are becoming a thing of the past in mobile phones. OLED displays also have lower power consumption compared to LCD technology.

Display Resolution of Samsung Galaxy A51 5G is 2400 x 1080 pixels. A higher display resolution is a prerequisite for a sharper image. The standard for mid-range phones today is a Full HD resolution of 1920 × 1080 px. Cheaper phones, which usually have a smaller diagonal, have an HD resolution of 1280 × 720 px. Smaller resolutions can only be found in older models. Best phones, on the other hand, have a 4K resolution of 3840 x 2160 px.

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PROCESSOR Samsung Galaxy A51 5G
Clock Speed 2.2 GHz Better than 79 % of phones rated.
Processor Core Qty 8-core Better than 99 % of phones rated.
64-bit Architecture Yes Better than 82 % of phones rated.

The number of processor cores is 8. It is a number of cores that plays an important role in evaluating the performance of phone as it is responsible for computing operations. Smartphones already commonly have a core count of around 4 to 8. Multi-core processors can perform better and reduce the processing time of a request to a minimum, which is reflected in the responsiveness of the phone, e.g. in the speed of opening applications. Another important parameter is the processor frequency, which indicates how many instructions the phone can process in one second. Similar to refresh rate, the higher the number, the faster the phone responds. Processor frequency of phone Samsung Galaxy A51 5G is 2.2 GHz. As standard today, you'll find this value between 1.8 GHz and 2.8 GHz.

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MEMORY Samsung Galaxy A51 5G
RAM 6 GB Better than 85 % of phones rated.
Internal Memory Size (Storage Capacity) 128 GB Better than 90 % of phones rated.
User Memory 105.3 GB
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 1 TB

One of the most important parameters for user´s decision is often internal memory capacity. The larger it is, the more apps, photos, movies and other files your phone can store. This phone has 128 GB storage. It is currently the most common storage size among today´s smartphones. The capacity is perfectly adequate for the average user. It will allow you to store thousands of photos, high-resolution videos, dozens of apps and several games on your phone. But if you're one of those really demanding users and you use your phone to shoot 4K videos etc., then you should rather pay extra to have a larger storage of 256 GB or more. Nowadays, you can usually find one phone model on the market with several different memory sizes. This allows each user to choose what suits them best.

For this model it is possible to increase the storage size by inserting a memory card.

Size of the RAM memory tells us how powerful the phone is. Samsung Galaxy A51 5G is equipped with 6 GB. Commonly today you will find phones with 6 to 8 GB of RAM. This means that the phone can easily handle normal operation and more demanding applications or games. Higher RAM of 12 GB can be found in best phones on market and are ideal especially for avid gamers. On the other hand, operating memory below 4 GB is more of an issue with lower-end phones and older models. However, even they will find their fans among less demanding users, who don´t want to spend much on buying new phone.

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CAMERA Samsung Galaxy A51 5G
MAIN CAMERA
Number of Main Cameras 4
Sensor Resolution 48 Megapixel Better than 93 % of phones rated.
Lens Aperture F/2.0 Worse than 52 % of phones rated.
Focus Adjustment Automatic
Digital Zoom 8x Better than 79 % of phones rated.
Special Effects Bokeh effect
Camera Modes Slow motion video
Light Source LED flash
Video Resolutions Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 480 fps
Camera Features (Functions) Live Focus, background blur
SECOND CAMERA
Sensor Resolution (2nd Camera) 12 Megapixel Better than 81 % of phones rated.
Lens Type (2nd Camera) Ultra wide-angle lens
Lens Aperture (2nd Camera) F/2.2 Better than 87 % of phones rated.
Field of View (2nd Camera) 123 degree(s) Better than 97 % of phones rated.
THIRD CAMERA
Sensor Resolution (3rd Camera) 5 Megapixel Better than 53 % of phones rated.
Lens Aperture (3rd Camera) F/2.4 Better than 76 % of phones rated.
Camera Functions (3rd Camera) Macro camera
FOURTH CAMERA
Sensor Resolution (4th Camera) 5 Megapixel Better than 90 % of phones rated.
Lens Aperture (4th Camera) F/2.2 Better than 93 % of phones rated.
Camera Functions (4th Camera) Depth camera
FRONT CAMERA
Number of Front Cameras 1
Sensor Resolution (Front) 32 Megapixel Better than 99 % of phones rated.
Lens Aperture (Front) F/2.2 Better than 51 % of phones rated.
Focus Adjustment Focus free

The rear camera of the phone Samsung Galaxy A51 5G has 4 lenses. Today's modern phones usually have several rear lenses. The most common are macro lens, telephoto lens and wide-angle lens. Each is used to capture the perfect photo - macro lens is designed for close-up photography, telephoto lens, often equipped with an optical zoom, is for photos of objects in distance, and wide-angle lens captures larger areas where you need a wider field of view. The resolution of main lens is 48 Megapixel. Nonetheless, resolution alone does not necessarily mean a good photo. Therefore, you should look at other parameters such as lens aperture or pixel size. Another important factor is the aperture, which in this case is F/2.0 and determines how much light passes through the sensor. Best phones have an aperture of up to F/1.5. But the most common lenses today are F/1.8 to F/2.2. In this case, the lower the number after the slash, the higher the photo quality.

Digital zoom in this case offers zooming up to 8x. Of course, the higher the lens value, the more distant object can be zoomed in. Nonetheless, the disadvantage of digital zoom is that the quality and sharpness of photo deteriorates when using it.

Second camera
The second lens of rear camera is designed as Ultra wide-angle lens. The field of view of second lens reaches 123 degree(s). The resolution reaches size of 12 Megapixel. In addition, this lens also features lens aperture of F/2.2.

Third camera
The resolution of third lens is then 5 Megapixel. The aperture reaches size of F/2.4.

Fourth camera
The resolution of fourth lens is 5 Megapixel. Lens aperture value then reaches F/2.2.

Front camera
The front camera of phone Samsung Galaxy A51 5G has one lens. This number of lenses is standard on most smartphones nowadays. The lens is equipped with 32 Megapixel. However, do not forget there are other factors than resolution having impact on the final quality of front camera photos. The main front lens also achieves F/2.2.

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BATTERY AND CHARGING Samsung Galaxy A51 5G
Battery Capacity (Battery Size) 4500 mAh Better than 91 % of phones rated.
Talk Time 1380 minutes Better than 84 % of phones rated.
Run Time Details Talk (4G): up to 1380 min
Active online usage (LTE): up to 16 hrs
Active online usage (Wi-Fi): up to 17 hrs
Playback (video): up to 19 hrs
Playback (audio): up to 86 hrs

The battery size of Samsung Galaxy A51 5G is 4500 mAh. Nevertheless, battery capacity is not the only factor that affects the phone's battery life. For example - the size of the display, the performance of the processor, the use of data functions and, of course, the intensity of use of phone in general all have a significant impact on battery life. Standard for most smartphones today is a battery capacity of around 4500 to 5000 mAH. Phones with this battery size usually guarantee a phone life of at least 1 day. Older or cheaper smartphone models can then reach battery capacities typically around 2500 mAH and below. With this capacity, you may find that if you use your phone heavily, you may need to recharge your phone during the day. The phone Samsung Galaxy A51 5G will last one charge with constant phone calls 1380 minutes.

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CELLULAR Samsung Galaxy A51 5G
Technology WCDMA (UMTS) / GSM
Mobile Broadband Generation 5G Better than 99 % of phones rated.
Intelligent Assistant Bixby
Navigation GPS, GLONASS, BeiDou, Galileo

Standard 4G connectivity is currently being replaced by 5G, but is still the preserve of the latest phones. Samsung Galaxy A51 5G supports 5G. 3G connectivity is now only found in the oldest phones.

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COMMUNICATIONS Samsung Galaxy A51 5G
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
3G UMTS Band Band 1, Band 2, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 850, 900
4G LTE Band Band 1, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 20, Band 28, Band 38, Band 40, Band 41
4G LTE Frequency FDD 2100, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500
5G NR Band N41, n78
5G NR Frequency TDD TD 2500, TDD TD 3500
Wireless Interface IEEE 802.11a/b/g/n/ac, ANT+
Bluetooth Bluetooth 5.0
NFC Yes Better than 66 % of phones rated.
Messaging Services SMS, MMS

Contactless payments are not a problem with this phone, thanks to NFC function. It can also be used, for example, to unlock doors or load menus in a restaurant using an NFC tag. Bluetooth 5.0 must not be missing from the basic package. It makes it easy to connect wireless headphones to your phone, connect your phone to your TV, tablet, speaker and more.

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MEDIA Samsung Galaxy A51 5G
Supported Digital Audio Standards WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID
Supported Digital Video Standards MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4
FEATURES Samsung Galaxy A51 5G
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Sensors Accelerometer, ambient light sensor, gyro sensor, hall sensor, geomagnetic sensor
Security Devices Fingerprint reader (under display)
Additional Phone Features Fast Charging, Samsung KNOX, Bixby Vision, Bixby Routines, Virtual Proximity Sensing
OTHERS Samsung Galaxy A51 5G
Included Accessories Power adapter

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