Samsung Galaxy M31s vs Samsung Galaxy S21 Ultra vs Samsung Galaxy S21+ - specs comparison

Display

Size:

6.5 inches

6.8 inches

6.7 inches

Resolution:

2400 x 1080 pixels, 20:9 ratio, 405 PPI

3200 x 1440 pixels, 20:9 ratio, 516 PPI

2400 x 1080 pixels, 20:9 ratio, 393 PPI

Technology:

Super AMOLED

Dynamic AMOLED

Screen-to-body:

86.06 %

89.33 %

88.63 %

Peak brightness:

1500 cd/m2 (nit)

1300 cd/m2 (nit)

Features:

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

120Hz refresh rate (adaptable), HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

120Hz refresh rate (adaptive), HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 9611

Qualcomm Snapdragon 888

Processor:

Octa-core, 2300 MHz, Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm

Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

GPU:

Mali-G72 MP3

Adreno 660

RAM:

6GB LPDDR4

12GB LPDDR5

8GB LPDDR5

Internal storage:

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

128GB (UFS 3.1), not expandable

128GB (UFS 3.0), not expandable

Storage expansion:

microSDXC up to 512 GB

Device type:

Smartphone

OS:

Android (11, 10), Samsung One UI

Android (11), Samsung One UI

Battery

Capacity:

6000 mAh

5000 mAh

4800 mAh

Type:

Not user replaceable

Li - Polymer, Not user replaceable

Charging:

Fast charging, Reverse charging

Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging

Max charge speed:

Wired: 25.0W

Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Quad camera

Triple camera

Main camera:

64 MP (PDAF)

108 MP (OIS, Laser and PDAF)

12 MP (OIS, PDAF)

Specifications:

F1.8; 26 mm; 1/1.7"; 0.8 μm

F1.8; 24 mm; 1/1.33"; 0.8 μm

F1.8; 26 mm; 1/1.76"; 1.8 μm

Second camera:

12 MP (Ultra-wide)

10 MP (Telephoto, OIS, PDAF)

64 MP (Telephoto, OIS, PDAF)

Specifications:

Aperture size: F2.2

Optical zoom: 3.0x; Aperture size: F2.4; Focal Length: 70 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Aperture size: F2.0; Focal Length: 29 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Third camera:

5 MP (Macro)

12 MP (Ultra-wide, PDAF)

Specifications:

Aperture size: F2.4

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Aperture size: F1.8; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Fourth camera:

5 MP (Depth information)

10 MP (Periscope, OIS, PDAF)

Specifications:

Aperture size: F2.4

Optical zoom: 10.0x; Aperture size: F4.9; Focal Length: 240 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Video recording:

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

7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

Hyperlapse, EIS

OIS, HDR, Hyperlapse, Video light, EIS

Front:

32 MP

40 MP (PDAF, HDR)

10 MP (PDAF, HDR)

Video capture:

3840x2160 (4K UHD) (30 fps)

3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

6.27 x 2.93 x 0.37 inches (159.3 x 74.4 x 9.3 mm)

6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm)

6.35 x 2.98 x 0.31 inches (161.5 x 75.6 x 7.8 mm)

Weight:

7.16 oz (203.0 g)

8.04 oz (229.0 g)

7.13 oz (202.0 g)

Materials:

Back: Glass (Corning Gorilla Glass Victus); Frame: Aluminum

Resistance:

Water, Dust; IP68

Biometrics:

Fingerprint (touch)

2D Face unlock, Ultrasonic in-screen fingerprint

Keys:

Right: Volume control, Lock/Unlock key

Colors:

Mirage black, Mirage blue

Phantom black, Silver

Phantom silver, Black, Violet

Cellular

5G:

n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave

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), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)

LTE (TDD):

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

Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)

UMTS:

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

Dual SIM:

Yes

SIM type:

Nano SIM

Multimedia

Headphones:

3.5mm jack

No 3.5mm jack

Speakers:

Earpiece, Loudspeaker

Earpiece, Multiple speakers

Features:

32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

Screen mirroring:

Wireless screen share

Radio:

FM

FM, Stereo, RDS

FM

Additional microphone(s):

for Noise cancellation, Video recording

Connectivity & Features

Bluetooth:

5.0

5.1

5.0

Wi-Fi:

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

802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 2.0

Type-C (reversible), USB 3.2

Features:

Charging, OTG

Charging, Headphones port, OTG, Video out

Location:

GPS, A-GPS, Cell ID, Wi-Fi positioning

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

Sensors:

Accelerometer, Gyroscope, Compass

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

Other:

NFC

NFC, ANT+

Hearing aid compatible:

M3, T3

Regulatory Approval

FCC approval:

Date approved:

Dec 22, 2020

Dec 18, 2020

FCC ID value:

A3LSMG998U link

A3LSMG996U link

Measured SAR:

Head:

0.77 W/kg

0.65 W/kg

Body:

1.02 W/kg

0.95 W/kg

Simultaneous Transmission:

1.59 W/kg

Wireless Router:

1.16 W/kg

1.04 W/kg

Phablet:

3.15 W/kg

3.97 W/kg

Buyers information

Price:

€ 310

$ 1200

$ 1000

User Manual:

This is the official Samsung Galaxy M31s User Guide in English provided from the manufacturer.

In The Box:

C to C Data Cable, Ejection Pin

Availability

Officially announced:

Jul 30, 2020

Jan 14, 2021