LG G2 vs Samsung Galaxy S7 vs Samsung Galaxy A51

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

5.2 inches
5.1 inches
6.5 inches

Resolution:

1920 x 1080 pixels, 423 PPI
2560 x 1440 pixels, 576 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI

Technology:

IPS LCD
Super AMOLED
Super AMOLED

Screen-to-body:

76.28 %
72.30 %
87.37 %

Colors:

16 777 216

Peak brightness:

450 cd/m2 (nit)

Touchscreen:

Capacitive, Multi-touch

Features:

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 4), Ambient light sensor, Proximity sensor
60Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 800 MSM8974
Qualcomm Snapdragon 820 MSM8996
Samsung Exynos 9611

Processor:

Quad-core, 2260 MHz, Krait 400
Quad-core, 2200 MHz, Kryo, 64-bit, 14 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

GPU:

Adreno 330
Adreno 530
Mali-G72 MP3

RAM:

2GB LPDDR3
4GB LPDDR4
4GB LPDDR4

Internal storage:

32GB, available to use: 24 GB
32GB, available to use: 24.5 GB
128GB, available to use: 105.9 GB

Storage expansion:

microSDXC up to 200 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (5.0 Lollipop, 4.4.2, 4.2.2)
Android (8.0 Oreo, 7.0 Nougat, 6.0 Marshmallow), Samsung TouchWiz UI
Android (11, 10), Samsung One UI

Battery

Capacity:

3000 mAh
3000 mAh
4000 mAh

Type:

Li - Polymer, Not user replaceable
Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results:

Charging:

Qualcomm Quick Charge 2.0, Qi and Powermat wireless charging
Fast charging

Camera

Rear:

Single camera
Single camera
Quad camera

Main camera:

13 MP (Sapphire crystal lens cover, OIS, Autofocus, BSI sensor)
12 MP (OIS, PDAF)
48 MP (PDAF)

Specifications:

Aperture size: F2.4; Focal length: 29 mm; Sensor size: 1/3.06"; Pixel size: 1.12 μm
Aperture size: F1.7; Focal length: 26 mm; Sensor size: 1/2.5"; Pixel size: 1.4 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

12 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm

Third camera:

5 MP (Macro)

Specifications:

Aperture size: F2.4; Focal Length: 40 mm

Fourth camera:

5 MP (Depth information)

Specifications:

Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm

Video recording:

1920x1080 (Full HD) (60 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)

Features:

OIS
HDR, Picture-taking during video recording, Video calling, Video sharing
Hyperlapse, EIS

Front:

2.1 MP
5 MP (HDR)
32 MP (HDR)

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

5.45 x 2.79 x 0.35 inches (138.5 x 70.9 x 8.9 mm)
5.61 x 2.74 x 0.31 inches (142.4 x 69.6 x 7.9 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)

Weight:

5.04 oz (143.0 g)
5.36 oz (152.0 g)
6.07 oz (172.0 g)

Materials:

Back: Glass (Corning Gorilla Glass 4); Frame: Aluminum
Back: Plastic; Frame: Plastic

Resistance:

Water, Dust; IP68

Biometrics:

Fingerprint (touch)
2D Face unlock, In-screen fingerprint

Features:

Notification light
Touch sensitive control keys

Keys:

Back: Volume control, Lock/Unlock key
Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Black, White
Black, Gold, Silver, Pink, White, Pink gold
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Cellular

LTE (FDD):

Bands 1(2100), 3(1800), 7(2600), 8(900), 20(800 DD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 18(800 Lower), 19(800 Upper), 20(800 DD), 29(700 d), 30(2300 WCS)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)

LTE (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 41(2600+)

UMTS:

Bands 5(850), 8(900), 2(1900), 1(2100)
Bands 5(850), 4(1700/2100), 2(1900), 1(2100)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)

Data Speed:

LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSDPA+ (4G) 21.1 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

SIM type:

Micro SIM
Nano SIM
Nano SIM

HD Voice:

Yes

VoLTE:

Yes
Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Album art cover, Background playback, Dolby Mobile
aptX-HD
Dolby Atmos

Screen mirroring:

DLNA, Wireless screen share, MirrorLink, SlimPort
DLNA, Wireless screen share
Wireless screen share

Radio:

FM, Stereo, RDS
FM

Additional microphone(s):

for Noise cancellation, Video recording
for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

4.0
4.2
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; MIMO, Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

microUSB, USB 2.0
microUSB, USB 2.0
Type-C (reversible), USB 2.0

Features:

Mass storage device, OTG, Charging, Video out
Charging, OTG, Mass storage device
Charging, OTG

HDMI:

Yes

Location:

GPS, A-GPS, Glonass
GPS, A-GPS, Glonass
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Other:

NFC, Infrared, Tethering, Computer sync, OTA sync
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync
NFC, ANT+

Hearing aid compatible:

M4, T3

Phone features

Notifications:

Haptic feedback, (MP3)

Other features:

Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval:

Date approved:

Feb 12, 2016
Nov 28, 2019

FCC ID value:

ZNFD802
A3LSMG930F link
A3LSMA515FN link

Measured SAR:

Head:

0.43 W/kg
0.89 W/kg

Body:

1.06 W/kg
1.18 W/kg

Simultaneous Transmission:

1.59 W/kg
1.56 W/kg

Wireless Router:

1.03 W/kg
1.12 W/kg

Phablet:

2.76 W/kg

Buyers information

Price:

$ 699
$ 400

User Manual:

This is the official Samsu​ng Galaxy A51 User Guide in English provided from the manufacturer.

Availability

Officially announced:

Aug 07, 2013
Feb 21, 2016
Dec 12, 2019
This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
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