Samsung Galaxy M31 vs Samsung Galaxy A21s - specs comparison

Display

Size:

6.4 inches

6.5 inches

Resolution:

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

1600 x 720 pixels, 20:9 ratio, 270 PPI

Technology:

Super AMOLED

TFT

Screen-to-body:

83.97 %

82.94 %

Peak brightness:

420 cd/m2 (nit)

Features:

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

Proximity sensor

Hardware

System chip:

Exynos 9611

Samsung Exynos 850

Processor:

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

Octa-core, 2000 MHz, Arm Cortex-A55, 64-bit

GPU:

Mali-G72 MP3

Mali-G76

RAM:

6GB LPDDR4

3GB LPDDR4

Internal storage:

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

32GB (eMMC 5.1), available to use: 19.5 GB

Storage expansion:

microSDXC up to 512 GB

Device type:

Smartphone

OS:

Android (11, 10), Samsung One UI

Android (10), Samsung One UI

Battery

Capacity:

6000 mAh

5000 mAh

Type:

Li - Polymer, Not user replaceable

Battery life test results:

link

Charging:

Fast charging

Max charge speed:

Wired: 15.0W

Camera

Rear:

Quad camera

Main camera:

64 MP (PDAF)

48 MP (PDAF)

Specifications:

F1.8; 26 mm; 1/1.7"; 0.8 μm

F2.0; 26 mm; 1/2"; 0.8 μm

Second camera:

8 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; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera:

5 MP (Macro)

2 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)

2 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)

1920x1080 (Full HD) (30 fps)

Features:

Hyperlapse, EIS

Front:

32 MP (HDR, Slow-motion videos)

13 MP

Video capture:

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 2.96 x 0.35 inches (163.7 x 75.3 x 8.9 mm)

Weight:

6.74 oz (191.0 g)

6.77 oz (192.0 g)

Materials:

Back: Plastic; Frame: Plastic

Biometrics:

2D Face unlock, Fingerprint (touch)

Keys:

Right: Volume control, Lock/Unlock key

Colors:

Blue, Black, Red

Black, White, Blue, Red

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)

Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD):

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

UMTS:

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

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

Data Speed:

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

Dual SIM:

Yes

SIM type:

Nano SIM

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack

Speakers:

Earpiece, Loudspeaker

Features:

Dolby Atmos

Screen mirroring:

Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

5.0

Wi-Fi:

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

USB:

Type-C (reversible), USB 2.0

Features:

Charging

Location:

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

Sensors:

Accelerometer, Gyroscope, Compass

Accelerometer, Gyroscope

Other:

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

User Manual:

This is the official Samsung Galaxy M31 User Guide in English provided from the manufacturer.

This is the official Samsung Galaxy A21s 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

May 15, 2020