Samsung Galaxy M21
#1521
Samsung Galaxy M31 Prime
#1510Category Breakdown
Samsung Galaxy M21
Samsung Galaxy M31 Prime
Performance
76.581.8
Camera
64.462.7
Display
76.276.2
Battery
37.737.7
Build
89.189.1
Connectivity
62.254.8
Audio
8.98.9
Overall
57.457.6
Summary
- The Samsung Galaxy M21 and M31 Prime both feature a 6.4-inch Super AMOLED display with the same resolution and pixel density, ensuring vibrant visuals.
- In terms of performance, both devices utilize the Exynos 9611 chipset, but the M31 Prime offers more RAM at 6GB compared to the M21's 4GB, which may enhance multitasking.
- The M31 Prime also boasts a superior camera setup with a 64 MP main sensor versus the M21's 48 MP, and a higher resolution selfie camera at 32 MP compared to 20 MP.
- Both phones are equipped with a 6000 mAh battery and support 15W charging, providing extended usage.
- Build quality is similar, with both having Gorilla Glass 3 on the front and a plastic back, though the M31 Prime is slightly heavier.
- The M21 runs on Android 10 with an upgrade option to Android 11, while the M31 Prime operates on Android 10 with One UI 2.0.
Side-by-side Specification Comparison
Samsung Galaxy M21
Samsung Galaxy M31 Prime
General
Release Date
2020, March 18
2020, October 14
Announced
2020, March 18
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
48 MP, f/2.0, 26mm (wide), 1/2.0", 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
20 MP, f/2.2, 26mm (wide)
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Front Camera Features
HDR
HDR
Video Recording
4K@30fps, 1080p@30fps, 720p@240fps, 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 x 75.1 x 8.9 mm (6.26 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
188 g
191 g
Materials
Glass front (Gorilla Glass 3), plastic back, plastic frame
Glass front (Gorilla Glass 3), plastic back, plastic frame
Colors
Midnight Blue, Raven Black
Ocean Blue, Space Black, Iceberg Blue
Foldable
✗
✗
SAR
0.47 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, upgradable to Android 11, One UI 3.1 Core
Android 10, One UI 2.0
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Fingerprint (rear-mounted), accelerometer, gyro, compass