Samsung Galaxy M21s
#1611
Samsung Galaxy M31 Prime
#1510Category Breakdown
Samsung Galaxy M21s
Samsung Galaxy M31 Prime
Performance
76.581.8
Camera
62.762.7
Display
76.276.2
Battery
37.737.7
Build
89.189.1
Connectivity
54.254.8
Audio
8.98.9
Overall
56.657.6
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
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, 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)
Main Camera Features
LED flash, panorama, HDR
LED flash, panorama, HDR
Front Camera
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Front Camera Features
HDR
HDR
Video Recording
4K@30fps, 1080p@30fps, gyro-EIS
4K@30fps, 1080p@30fps, gyro-EIS
Selfie Video
1080p@30fps
4K@30fps, 1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo 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 & Safety
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
Colors
Blue, Black
Ocean Blue, Space Black, Iceberg Blue
Foldable
✗
✗
SAR
0.38 W/kg (head)
0.38 W/kg (head)
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
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 10, One UI 2.5
Android 10, One UI 2.0
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Fingerprint (rear-mounted), accelerometer, gyro, compass