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Samsung Galaxy A51 · Photo source

Samsung Galaxy A51
Photo 1 of 49

Samsung Galaxy A51 · Photo source

Samsung · Galaxy A

Galaxy A51

Released December 2019

A 4G Android phone with a 6.5-inch OLED screen, four rear cameras and expandable storage.

Model history · 2 models, 2019–2019
  1. 2019Galaxy A50Compare
  2. 2019Galaxy A51
Screen
6.5″
Display
OLED
Chip
Exynos 9611
Memory
4 GB
Storage
128 GB
Main camera
48 MP
Zoom
–
Battery
4,000 mAh
Weight
172 g

What reviewers say

TechRadar and Android Authority praised the OLED display but found routine performance sluggish. Both considered battery life adequate for a day rather than exceptional; TechRadar also found the low-light camera results weak.

From techradar.com and androidauthority.com

Specifications

Report a wrong or missing spec

Display

Screen size
6.5″
Resolution
2400 × 1080
Sharpness
405 pixels per inch
Panel
OLED
Display type
Super AMOLED Infinity-O display; 6.3-inch viewable diagonal accounting for rounded corners

Performance

Chip
Exynos 9611
Memory
4 GB
Storage
128 GB
CPU
Octa-core, four cores at 2.3 GHz and four at 1.7 GHz; Exynos 9611 confirmed by Samsung support
Storage type
Dedicated microSD slot supports cards up to 512 GB; 107 GB available on the 128 GB model

Cameras

Main camera
48 MP
Ultra wide camera
12 MP
Telephoto camera
None
Optical zoom
None
Front camera
32 MP
Main camera
48 MP, F2.0, autofocus; no optical image stabilisation
Ultra wide camera
12 MP, F2.2
Front camera
32 MP, F2.2, fixed focus
Zoom
Digital zoom up to 8×
Video recording
UHD 4K 3840 × 2160 at 30 fps; HD slow motion at 240 fps
Camera features
5 MP F2.4 macro and 5 MP F2.2 depth cameras; Super Steady ultra-wide video in Full HD; rear flash

Battery and charging

Battery
4,000 mAh
Video playback (maker's claim)
Up to 20 hours
Wired charging
Up to 15 W
Wireless charging
None
Battery life detail
4,000 mAh typical, 3,890 mAh rated; up to 20 hours video playback
Wired charging
15 W fast charging

Design

Type
Standard
Weight
172 g
Thickness
7.9 mm
Height × width
158.5 × 73.6 mm
Colours
Prism Crush Black, White and Blue
Biometrics
In-screen fingerprint reader
Sensors
Accelerometer, fingerprint sensor, gyroscope, geomagnetic sensor, Hall sensor, light sensor and virtual proximity sensing
Speakers
Mono speaker and 3.5 mm headphone socket

Software

Operating system
Android
Software at launch
Android 10 with One UI 2 (TechRadar)
Safety features
Samsung Knox

Connectivity

Mobile network
4G LTE, 3G WCDMA and 2G GSM
SIM
Dual nano-SIM with separate microSD slot
Wi-Fi
Wi-Fi 5 (802.11a/b/g/n/ac), 2.4 and 5 GHz
Bluetooth
Bluetooth 5.0
NFC
Supported
USB
USB Type-C, USB 2.0
Positioning
GPS, GLONASS, BeiDou and Galileo

Storage options

Storage
128 GB

Pros and cons

Pros

  • Super AMOLED FHD+ screen
  • Dedicated microSD slot and 3.5 mm headphone socket
  • 4K video recording

Cons

  • No optical image stabilisation
  • No official water-resistance rating

Closest rivals

Model
ScreenDisplayChipMemoryStorageMain cameraZoomBatteryWeightReleased
XiaomiRedmi Note 7
6.3″LCDQualcomm Snapdragon 6603 GB – 4 GB32 GB – 128 GB48 MP–4,000 mAh186 gJan 2019
SamsungGalaxy A20s
6.5″LCDSnapdragon 4503 GB – 4 GB32 GB – 64 GB13 MP–4,000 mAh183 gSept 2019
OnePlusNord N100
6.52″LCD, 90 HzQualcomm Snapdragon 4604 GB64 GB13 MP–5,000 mAh188 gNov 2020

Previous model: Galaxy A50. Newer model: Galaxy A52.

Sources

  1. samsung.com/ie/business/smartphones/galaxy-a/galaxy-a51-sm-a515fzkveua
  2. samsung.com/ie/support/mobile-devices/what-is-the-a51
  3. news.samsung.com/vn/samsung-viet-nam-chinh-thuc-ra-mat-galaxy-a51-dau-tien-tren…
  4. techradar.com/reviews/samsung-galaxy-a51-review
  5. androidauthority.com/samsung-galaxy-a51-review-1123474

Photo: images.samsung.com

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