Samsung Galaxy M21s
#1484
Samsung Galaxy M31 Prime
#1326Category Breakdown
Samsung Galaxy M21s
Samsung Galaxy M31 Prime
Performance
62.564.8
Camera
48.748.7
Display
79.579.5
Battery
63.563.5
Build
77.877.8
Overall
64.164.8
Summary
- The Samsung Galaxy M21s and Galaxy M31 Prime share similar build quality, featuring a glass front with Gorilla Glass 3, a plastic back, and a plastic frame, both weighing 191g and measuring 159.2 x 75.1 x 8.9 mm.
- Their displays are identical, with a 6.4-inch Super AMOLED panel offering a resolution of 1080 x 2340 pixels and a peak brightness of 420 nits.
- Performance-wise, both models utilize the Exynos 9611 chipset, but the M31 Prime offers 128GB of RAM compared to the M21s' 64GB.
- Camera specifications are also closely matched, with both having a 64 MP main sensor and a 32 MP selfie camera, although the M31 Prime includes an additional 5 MP macro lens.
- Both devices are powered by a 6000 mAh battery with 15W charging.
- The M21s runs on Android 10 with One UI 2.5, while the M31 Prime operates on Android 10 with One UI 2.0, indicating a slight difference in software experience.
Side-by-side Specification Comparison
Samsung Galaxy M21s
Samsung Galaxy M31 Prime
General
Release Date
2020, November 06
2020, October 14
Announced
2020, November 06
2020, October 14
Description
N/A
N/A
Display
Size
6.4"
6.4"
Type
Super AMOLED, 420 nits (peak)
Super AMOLED, 420 nits (peak)
Resolution
1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
Corning Gorilla Glass 3
Performance
Chipset
Exynos 9611 (10 nm)
Exynos 9611 (10 nm)
CPU
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU
Mali-G72 MP3
Mali-G72 MP3
Memory
64GB 4GB RAM, 128GB 6GB RAM
128GB 6GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
64 MP
64 MP
Main Camera Details
64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm5 MP, f/2.2, (depth)
64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm5 MP, f/2.4, (macro)5 MP, f/2.2, (depth)
Front Camera
32 MP
32 MP
Front Camera Details
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Video Recording
4K@30fps, 1080p@30fps, gyro-EIS
4K@30fps, 1080p@30fps, gyro-EIS
Selfie Video
1080p@30fps
4K@30fps, 1080p@30fps
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
6000 mAh
6000 mAh
Battery Details
Li-Po 6000 mAh
Li-Po 6000 mAh
Charging Details
15W wired
15W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in)
159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in)
Weight
191 g
191 g
Materials
Glass front (Gorilla Glass 3), plastic back, plastic frame
Glass front (Gorilla Glass 3), plastic back, plastic frame
Water Resistance
N/A
N/A
Colors
Blue, Black
Ocean Blue, Space Black, Iceberg Blue
Foldable
✗
✗
Connectivity
SIM
Nano-SIMNano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE
NFC
✗
✗
USB
USB Type-C 2.0
USB Type-C 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, GALILEO, BDS
GPS, GLONASS, GALILEO, BDS
Software
Operating System
Android 10, One UI 2.5
Android 10, One UI 2.0
OS Version
Android 10, One UI 2.5
Android 10, One UI 2.0
Security
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Fingerprint (rear-mounted), accelerometer, gyro, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes