Samsung Galaxy M31 vs Samsung Galaxy A71 vs Samsung Galaxy A71 5G

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

Display

Size:

6.4 inches
6.7 inches
6.7 inches

Resolution:

2340 x 1080 pixels, 19.5:9 ratio, 403 PPI
2400 x 1080 pixels, 20:9 ratio, 393 PPI
2400 x 1080 pixels, 20:9 ratio, 393 PPI

Technology:

Super AMOLED
Super AMOLED Plus
Super AMOLED Plus

Screen-to-body:

83.97 %
87.24 %
88.38 %

Peak brightness:

420 cd/m2 (nit)

Features:

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

Hardware

System chip:

Exynos 9611
Qualcomm Snapdragon 730 SM7150-AA
Qualcomm Snapdragon 765 SM7250-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
Octa-core, 2400 MHz, Kryo 475, 64-bit, 7 nm

GPU:

Mali-G72 MP3
Adreno 618
Adreno 620

RAM:

6GB LPDDR4
6GB LPDDR4
6GB LPDDR4

Internal storage:

64GB (UFS 2.1), available to use: 49 GB
128GB, available to use: 106.1 GB
128GB (UFS 2.1), available to use: 104.3 GB

Storage expansion:

microSDXC up to 512 GB
microSDXC up to 512 GB
microSDXC up to 1000 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (11, 10), Samsung One UI
Android (11, 10), Samsung One UI
Android (11, 10), Samsung One UI

Battery

Capacity:

6000 mAh
4500 mAh
4500 mAh

Type:

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

Battery life test results:

Charging:

Fast charging
Fast charging
Fast charging

Max charge speed:

Wired: 15.0W
Wired: 25.0W

Camera

Rear:

Quad camera
Quad camera
Quad camera

Main camera:

64 MP (PDAF)
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: 1/1.7"; Pixel size: 0.8 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Second camera:

8 MP (Ultra-wide)
12 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; Focal Length: 12 mm
Aperture size: F2.2; Focal Length: 12 mm

Third camera:

5 MP (Macro)
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; Focal Length: 25 mm
Aperture size: F2.4; Focal Length: 25 mm; Sensor size: 1/5"; Pixel size: 1.12 μm

Fourth camera:

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

Specifications:

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

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

Hyperlapse, EIS
EIS
Hyperlapse, EIS

Front:

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

Video capture:

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

Design

Dimensions:

6.27 x 2.96 x 0.35 inches (159.2 x 75.1 x 8.9 mm)
6.44 x 2.99 x 0.30 inches (163.6 x 76 x 7.7 mm)
6.40 x 2.97 x 0.32 inches (162.5 x 75.5 x 8.1 mm)

Weight:

6.74 oz (191.0 g)
6.31 oz (179.0 g)
6.53 oz (185.0 g)

Materials:

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

Biometrics:

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

Keys:

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

Colors:

Blue, Black, Red
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Prism Cube black, Prism Cube sliver, Prism Cube blue

Cellular

5G:

n2, n5, n41, n66, n71, Sub-6, mmWave

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)
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), 28(700 APT), 66(AWS-3)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 14(700 PS), 20(800 DD), 29(700 d), 30(2300 WCS), 66(AWS-3)

LTE (TDD):

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

UMTS:

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

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

Dual SIM:

Yes
Yes

SIM type:

Nano SIM
Nano SIM
Nano SIM

HD Voice:

Yes

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Dolby Atmos
Dolby Atmos

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM
FM
FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
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
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
Type-C (reversible), USB 2.0

Features:

Charging
Charging, OTG
Charging, OTG

Location:

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

Sensors:

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

Other:

NFC
NFC, ANT+
NFC, ANT+

Hearing aid compatible:

M4, T3

Regulatory Approval

FCC approval:

Date approved:

Feb 07, 2020
Jun 04, 2020

FCC ID value:

A3LSMM315F link
A3LSMA716U link

Measured SAR:

Head:

0.42 W/kg
0.69 W/kg

Body:

0.41 W/kg
1.11 W/kg

Simultaneous Transmission:

1.54 W/kg
1.59 W/kg

Wireless Router:

0.74 W/kg
1.16 W/kg

Phablet:

3.93 W/kg

EU SAR:

Head:

1.24 W/kg

Body:

1.53 W/kg

Buyers information

Price:

€ 240
$ 600

User Manual:

This is the official Samsu​ng Galaxy M31 User Guide in English provided from the manufacturer.
This is the official Samsu​ng Galaxy A71 User Guide in English provided from the manufacturer.
This is the official Samsu​ng Galaxy A71 5G User Guide in English provided from the manufacturer.

In The Box:

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

Availability

Officially announced:

Feb 25, 2020
Dec 12, 2019
Apr 08, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless