Samsung Galaxy M31 vs Samsung Galaxy M51

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Display

Size

6.4 inches
6.7 inches

Resolution

2340 x 1080 pixels, 19.5:9 ratio,
403 PPI
2340 x 1080 pixels, 19.5:9 ratio,
385 PPI

Technology

Super AMOLED
Super AMOLED

Screen-to-body

83.97 %
88.27 %

Peak brightness

420 cd/m2 (nit)
 

Features

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor

Hardware

System chip

Exynos 9611
Qualcomm Snapdragon 730 SM7150-AA

Processor

Octa-core, 2300 MHz, Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm
Octa-core, 2200 MHz, Kryo 470, 64-bit, 8 nm

GPU

Mali-G72 MP3
Adreno 618

RAM

6GB LPDDR4
6GB LPDDR4

Internal storage

64GB (UFS 2.1), available to use: 49 GB
128GB

Storage expansion

microSDXC up to 512 GB
microSDXC up to 512 GB

Device type

Smartphone
Smartphone

OS

Android (10), Samsung One UI
Android (10), Samsung One UI

Battery

Capacity

6000 mAh
7000 mAh

Type

Li - Polymer, Not user replaceable
Not user replaceable

Charging

Fast charging
Fast charging

Max charge speed

Wired: 15.0W
Wired: 25.0W

Camera

Rear

Quad camera
Quad camera

Main camera

64 MP (PDAF)
64 MP (PDAF)

Specifications

Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.76"; Pixel size: 0.8 μm

Second camera

8 MP (Ultra-wide)
12 MP (Ultra-wide)

Specifications

Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.2

Third camera

5 MP (Macro)
5 MP (Macro)

Specifications

Aperture size: F2.2; Focal Length: 25 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.4

Fourth camera

5 MP (Depth information)
5 MP (Depth information)

Specifications

Aperture size: F2.2
Aperture size: F2.4

Video recording

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

Features

Hyperlapse, EIS
 

Front

32 MP (HDR, Slow-motion videos)
32 MP (HDR)

Design

Dimensions

6.27 x 2.96 x 0.35 inches (159.2 x 75.1 x 8.9 mm)
6.45 x 3.00 x 0.37 inches (163.9 x 76.3 x 9.5 mm)

Weight

6.74 oz (191.0 g)
the average is 6.3 oz (179 g)
 

Materials

Back: Plastic; Frame: Plastic
Back: Plastic; Frame: Plastic

Biometrics

2D Face unlock, Fingerprint (touch)
Fingerprint (touch)

Keys

Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors

Blue, Black, Red
Black, White

Cellular

LTE (FDD)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
 

LTE (TDD)

Bands 38(2600), 40(2300), 41(2600+)
 

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
 

Data Speed

LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

Yes
Yes

SIM type

Nano SIM
Nano SIM

VoLTE

Yes
 

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Dolby Atmos
 

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
FM

Additional microphone(s)

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth

5.0
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; Wi-Fi Direct, Hotspot

USB

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

Features

Charging
Charging

Location

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

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Other

NFC
NFC

Regulatory Approval

FCC approval

 
 

Date approved

Feb 07, 2020
 

FCC ID value: A3LSMM315F link
 

Measured SAR

 
 

Head

0.42 W/kg
 

Body

0.41 W/kg
 

Simultaneous Transmission

1.54 W/kg
 

Wireless Router

0.74 W/kg
 

Buyers information

Price

€ 240
€ 360

User Manual

Download the Samsu​ng Galaxy M31 Manual as a PDF file.
 

In The Box

15W fast charger, Data cable, Ejection pin, User Manual
 

Availability

Officially announced

Feb 25, 2020
Aug 31, 2020
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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