Samsung Galaxy M21

Samsung Galaxy M21
  • Screen: 6.4" Super AMOLED - 1080 x 2340
  • SoC: Samsung Exynos 7 Octa 9611
  • Camera: 3 (48 MP + 8 MP + 5 MP)
  • Battery: 6000 mAh
  • OS: Android 12.0
  • Weight: 188 grams (6.63 oz)
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Review

Display
55
Camera
38*
Performance
20
Gaming
14
Battery
64
Connectivity
59
NanoReview Score
42*
Scores marked with a red asterisk (*) are approximate, as we currently do not have sufficient test results to make a precise estimation.
Compare Samsung Galaxy M21 with other phones

Full specifications

Detailed specifications, tests, and benchmarks of the Samsung Galaxy M21

Display

Type Super AMOLED
Size 6.4 inches
Resolution 1080 x 2340 pixels
Aspect ratio 19.5:9
PPI 403 ppi
Refresh rate 60 Hz
Adaptive refresh rate No
Max rated brightness 630 nits
HDR support No
Screen protection Corning Gorilla Glass 3
Screen-to-body ratio 84.2%
Display features - Always-On Display
Display tests
RGB color space 141.3%
PWM 215 Hz
Response time 9 ms
Contrast ∞ Infinity
Peak brightness test (auto)
609 nits
Sources: NotebookCheck [3]

Design and build

Height 159 mm (6.26 inches)
Width 75.1 mm (2.96 inches)
Thickness 8.9 mm (0.35 inches)
Weight 188 g (6.63 oz)
Waterproof No
Rear material Plastic
Frame material Plastic
Colors Black, Blue, Green
Fingerprint scanner Yes, rear
Screen-to-body ratio
84.2%

Performance

Chipset specifications of the Samsung Galaxy M21
SoC
Chipset Samsung Exynos 7 Octa 9611
Max clock 2300 MHz
CPU cores 8 (4 + 4)
Architecture - 4 cores at 1.7 GHz: Cortex-A53
- 4 cores at 2.3 GHz: Cortex-A73
Manufacturing Samsung
Lithography process 10 nanometers
Neural processor (NPU) Yes
GPU
Graphics Mali-G72 MP3
GPU shading units 36
GPU clock 850 MHz
FLOPS ~61.2 GFLOPS

Benchmarks

Benchmark results of the Samsung Galaxy M21
Geekbench 6 (Single-Core)
363
Geekbench 6 (Multi-Core)
1139
Compute Score (GPU)
1474
Compute Score (GPU) 1474
Single-core score 363
Multi-core score 1139
Sources: Geekbench [3]
AnTuTu Benchmark 11
355351
CPU 146634
GPU 30478
Memory 82437
UX 95802
Total score 355351

Recent User Tests

The latest benchmark tests that have been submitted by users
DateBenchmarkResult
πŸ“˜ 2026-05-05 (GrayHerzog)AnTuTu 11266422
πŸ“˜ 2026-03-24 (Kot2000)AnTuTu 11355351
πŸ“˜ 2026-01-25 (Ashraf)Geekbench 6 CPU365 / 1107
πŸ“˜ 2026-01-25 (Ashraf)Geekbench 6 GPU1562
πŸ“˜ 2025-05-20 -> M21Geekbench 6 GPU1474
πŸ“˜ 2025-05-20 -> M21Geekbench 6 CPU358 / 959
πŸ“˜ 2025-05-20 (Osman Emon)Geekbench 6 GPU1474
πŸ“˜ 2025-05-20 (Osman Emon)Geekbench 6 CPU363 / 1139

Memory

RAM
RAM size 4 GB
Memory type LPDDR4X
Memory clock 1866 MHz
Channels 2
Storage
Storage size 64 GB
Storage type UFS 2.1
Memory card MicroSD
Memory card max size Up to 512 GB

Software

Operating system Android 10.0 (Can be upgraded to Android 12.0)
ROM One Ui 4.1
OS size 14.5 GB
OS updates 2 years
Security updates 4 years

Battery

Capacity 6000 mAh
Max charge power 15 W
Battery type Li-Ion
Replaceable No
Wireless charging No
Reverse charging No
Fast charging Yes, Samsung Adaptive Fast Charge (25% in 30 min)
Full charging time 2:35 hr
Battery life tests
Web browsing 10:07 hr
Watching video 13:59 hr
Gaming 05:35 hr
Standby 115 hr
General battery life
24:03 hr

Main camera

Matrix 48 megapixels
Image resolution 8000 x 6000
Zoom Digital
Flash LED
Stabilization Digital
8K video recording No
4K video recording Up to 30FPS
1080p video recording Up to 30FPS
Slow motion 240 FPS (720p)
Angle of widest lens 123Β°
Lenses 1) Standard: 48 MP
2) Ultrawide: 8 MP
3) Depth: 5 MP
Camera features - Bokeh mode
- Pro mode
Standard lens
Image resolution 48 MP
Aperture f/2.0
Focal length 26 mm
Sensor Samsung S5KGM2
Sensor size 1/2.0" (β‰ˆ 0.5 inch)
Pixel size 0.8 micron
Autofocus Phase autofocus
Stabilization Digital
Ultra-wide lens
Image resolution 8 MP
Aperture f/2.2
Focal length 12 mm
Sensor size 1/4.0" (β‰ˆ 0.25 inch)
Pixel size 1.12 micron
Stabilization Digital

Selfie camera

Megapixels 20 megapixels
Image resolution 5184 x 3888
Aperture f/2.0
Focal length 26 mm
Sensor CMOS
Autofocus No
Stabilization Digital
Video resolution 1080p (Full HD) at 30 FPS
Depth sensor (TOF 3D) No

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
Bluetooth version 5
Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP
USB type USB Type-C
USB version 2
USB features - Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo
NFC* Yes
Infrared port No
Network
Number of SIM* 2
Type of SIM card Nano
Multi SIM mode Standby
eSIM support* No
Hybrid slot No
LTE Cat* 12
2G network GSM850, GSM900, DCS1800, PCS1900
3G network B1 (2100), B2 (1900), B5(850), B8 (900)
4G network B1(2100), B3(1800), B5(850), B7(2600), B8(900), B20(800), B38(2600), B40(2300), B41(2500)
5G support No

Sound

Speakers Mono
Headphone audio jack Yes
FM radio Yes
Dolby Atmos Yes
Speakers test
Max loudness
83.8 dB

Other

Category Mid-range
Announced March 2020
Release date March 2020
Launch price (MSRP) $210
SAR (head) 0.492 W/kg
SAR (body) 1.13 W/kg
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! Some specifications of the Galaxy M21 may differ by country or region

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