LG G4 vs Motorola DROID Turbo 2 vs Samsung Galaxy A51

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

Display

Size:

5.5 inches
5.4 inches
6.5 inches

Resolution:

2560 x 1440 pixels, 538 PPI
2560 x 1440 pixels, 540 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI

Technology:

IPS LCD
AMOLED
Super AMOLED

Screen-to-body:

72.46 %
68.03 %
87.37 %

Peak brightness:

500 cd/m2 (nit)

Features:

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
ShatterShield, 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 808 MSM8992
Qualcomm Snapdragon 810 MSM8994
Samsung Exynos 9611

Processor:

Hexa-core, 1800 MHz, ARM Cortex-A57 and ARM Cortex-A53, 64-bit, 20 nm
Octa-core, 2000 MHz, ARM Cortex-A57 and ARM Cortex-A53, 64-bit
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

GPU:

Adreno 418
Adreno 430
Mali-G72 MP3

RAM:

3GB LPDDR3
3GB
4GB LPDDR4

Internal storage:

32GB, available to use: 21.9 GB
64GB
128GB, available to use: 105.9 GB

Storage expansion:

microSDXC up to 2000 GB
microSDXC up to 2000 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (6.0 Marshmallow, 5.1 Lollipop), LG UX UI
Android (7.0 Nougat, 6.0 Marshmallow, 5.1 Lollipop)
Android (10), Samsung One UI

Battery

Capacity:

3000 mAh
3760 mAh
4000 mAh

Type:

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

Battery life test results:

Charging:

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

Camera

Rear:

Single camera
Single camera
Quad camera

Main camera:

16 MP (OIS, Laser autofocus)
21 MP (PDAF)
48 MP (PDAF)

Specifications:

Aperture size: F1.8; Focal length: 28 mm; Sensor size: 1/2.6"; Pixel size: 1.12 μm
Aperture size: F2.0
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:

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

Features:

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

Front:

8 MP
5 MP (Flash)
32 MP (HDR)

Video capture:

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

Design

Dimensions:

5.86 x 3.00 x 0.39 inches (148.9 x 76.1 x 9.8 mm)
5.90 x 3.07 x 0.36 inches (149.8 x 78 x 9.2 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)

Weight:

5.47 oz (155.0 g)
5.96 oz (169.0 g)
6.07 oz (172.0 g)

Materials:

Back: Plastic
Back: Plastic; Frame: Plastic

Resistance:

Splash

Biometrics:

2D Face unlock, In-screen fingerprint

Features:

Notification light, Interchangeable covers
Interchangeable covers

Keys:

Back: Volume control, Camera shutter, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Black, Gray, Brown, White
Black, White
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Cellular

LTE (FDD):

Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 17(700 b), 25(1900+)
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c)
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+), 41(2600+)

UMTS:

850, 900, 1900, 2100 MHz
850, 900, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz

Data Speed:

LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE Cat 4 (150/50 Mbit/s), HSPA, HSUPA, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

SIM type:

Micro SIM
Nano SIM
Nano SIM

VoLTE:

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, Custom equalizer, Preset equalizer
Album art cover, Background playback
Dolby Atmos

Screen mirroring:

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

Radio:

FM, Stereo, RDS
FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

4.1
4.1
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; MIMO
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, Video out, Charging
Mass storage device, Charging
Charging, OTG

Location:

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

Sensors:

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

Other:

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

Hearing aid compatible:

M3, T3

Regulatory Approval

FCC approval:

Date approved:

Jul 16, 2015
Aug 12, 2015
Nov 28, 2019

FCC ID value:

ZNFH815 link
IHDT56UA1 link
A3LSMA515FN link

Measured SAR:

Head:

0.75 W/kg
1.38 W/kg
0.89 W/kg

Body:

0.38 W/kg
0.17 W/kg
1.18 W/kg

Simultaneous Transmission:

1.52 W/kg
1.58 W/kg
1.56 W/kg

Wireless Router:

0.34 W/kg
0.24 W/kg
1.12 W/kg

Phablet:

2.76 W/kg

EU SAR:

Head:

0.61 W/kg

Buyers information

Price:

$ 720
$ 400

User Manual:

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

In The Box:

Handsfree, Charger, USB cable, Manual

Availability

Officially announced:

Apr 28, 2015
Oct 27, 2015
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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