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Samsung Galaxy M21, picture 1
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Phone

Samsung Galaxy M21

Brand
Samsung
Release date
2020
Screen size
6.4 ″
Chip
Exynos 9611
Memory
6 GB
Storage
64 GB

The UnboxingTN Verdict

out of 100

The Galaxy M21 stands out with its AMOLED display, cameras, and battery, but modest performance and aging software limit the experience.

What is good

  • 6.4-inch Super AMOLED display with 1080×2340 resolution
  • 48 MP main camera and 20 MP selfie camera
  • 6000 mAh battery for long endurance

What is not

  • Exynos 9611 and Mali-G72 MP3 deliver modest performance
  • Android 10 is now dated
  • 4G cellular connectivity lacks 5G support

How the score breaks down

  • Performance 49
  • Camera 71
  • Display 75
  • Battery 55
  • Connectivity 58
  • Build 51
  • Software 34

UnboxingTN review · based on the specifications · engine 1.0.2 · Updated Sep 13, 2026

Written by UnboxingTN’s AI from the score and the specification sheet.

Reader reviews are coming, beside this score and never blended into it.

Also known as

galaxy-m21

Specifications

Performance

Chip
Exynos 9611
Chip maker
Samsung
Process
10 nm
Graphics
Mali-G72 MP3
Operating system
Android
System version
10

Memory and storage

Memory
6 GB
Storage
64 GB
128 GB

Display

Screen size
6.4 ″
Resolution
1,080 × 2,340
Panel type
Super AMOLED capacitive touchscreen, 16M colors
Pixel density
403 ppi

Battery

Battery
6,000 mAh

Cameras

Cameras
main · 48 MP
selfie · 20 MP

Connectivity

Mobile network
4G
Wi-Fi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth
5.0, A2DP, LE
NFC
Yes
USB
2.0, Type-C 1.0 reversible connector

Design

Weight
188 g
Height
159 mm
Width
75.1 mm
Thickness
8.9 mm
Colours
Black Blue

Data source · techapi:galaxy-m21