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Samsung Galaxy M31s vs Samsung Galaxy M51 vs Xiaomi Redmi Note 10 Pro

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

Comparison mode:

Display

Size:

6.5 inches
6.7 inches
6.7 inches

Resolution:

2400 x 1080 pixels, 20:9 ratio, 405 PPI
2340 x 1080 pixels, 20:9 ratio, 385 PPI
2400 x 1080 pixels, 20:9 ratio, 395 PPI

Technology:

Super AMOLED
Super AMOLED Plus
AMOLED

Refresh rate:

120Hz

Screen-to-body:

86.06 %
88.27 %
85.62 %

Peak brightness:

1200 cd/m2 (nit)

Features:

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 9611
Qualcomm Snapdragon 730 SM7150-AA
Qualcomm Snapdragon 732G SM7150-AC

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, 2300 MHz, Kryo 470, 64-bit, 8 nm

GPU:

Mali-G72 MP3
Adreno 618
Adreno 618

RAM:

6GB LPDDR4
6GB LPDDR4
6GB LPDDR4

Internal storage:

128GB (UFS 2.1), available to use: 106.4 GB
128GB, available to use: 106 GB
64GB (UFS 2.2)

Storage expansion:

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

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (11, 10), Samsung One UI
Android (10), Samsung One UI
Android (11), MIUI 12 UI

Battery

Capacity:

6000 mAh
7000 mAh
5020 mAh

Type:

Not user replaceable
Not user replaceable
Not user replaceable

Charging:

Fast charging, Reverse charging
Fast charging, Reverse charging
Qualcomm Quick Charge 4+

Max charge speed:

Wired: 25.0W
Wired: 25.0W
Wired: 33.0W

Camera

Rear:

Quad camera
Quad camera
Quad camera

Main camera:

64 MP (PDAF)
64 MP (PDAF)
108 MP (Autofocus)

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
Aperture size: F1.9; Sensor size: 1/1.52”; Pixel size: 0.7 μm

Second camera:

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

Specifications:

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

Third camera:

5 MP (Macro)
5 MP (Macro)
5 MP (Telephoto, Macro, Autofocus)

Specifications:

Aperture size: F2.4
Aperture size: F2.4
Optical zoom: 2.0x; Aperture size: F2.4

Fourth camera:

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

Specifications:

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

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps)

Features:

Hyperlapse, EIS

Front:

32 MP
32 MP (HDR)
16 MP

Video capture:

3840x2160 (4K UHD) (30 fps)
1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

6.27 x 2.93 x 0.37 inches (159.3 x 74.4 x 9.3 mm)
6.45 x 3.00 x 0.37 inches (163.9 x 76.3 x 9.5 mm)
6.46 x 3.01 x 0.32 inches (164 x 76.5 x 8.1 mm)

Weight:

7.16 oz (203.0 g)
7.51 oz (213.0 g)
6.77 oz (192.0 g)

Materials:

Back: Plastic; Frame: Plastic
Back: Glass

Resistance:

Splash; IP53

Biometrics:

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

Keys:

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

Colors:

Mirage black, Mirage blue
Black, White
Onyx Gray, Glacier Blue, Gradient Bronze

Cellular

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 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), 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), 20(800 DD), 28(700 APT), 32(1500 L-band)

LTE (TDD):

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

UMTS:

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

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, UMTS
LTE-A Cat 12/13 (600/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

Dual SIM:

Yes
Yes
Yes

SIM type:

Nano 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, Multiple speakers

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM
FM, Stereo, RDS

Additional microphone(s):

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)

Features:

Charging, OTG
Charging
Charging

Location:

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

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass
Accelerometer

Other:

NFC
NFC
NFC, Infrared

Regulatory Approval

FCC approval:

Date approved:

Jan 28, 2021

FCC ID value:

2AFZZK6R

Measured SAR:

Head:

1.09 W/kg

Body:

1.01 W/kg

Simultaneous Transmission:

1.59 W/kg

Wireless Router:

0.80 W/kg

Buyers information

Price:

€ 310
€ 360
$ 279

User Manual:

This is the official Samsu​ng Galaxy M31s User Guide in English provided from the manufacturer.

Availability

Officially announced:

Jul 30, 2020
Aug 31, 2020
Mar 04, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless