Samsung Galaxy M21 vs Samsung Galaxy M31: Comparison
Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Samsung Galaxy M21 vs Samsung Galaxy M31. The complete information of specifications to decide which to buy.
- Samsung Galaxy M21Southeast Asian · 4GB · 64GB · M215F
- Samsung Galaxy M31India · 6GB · 128GB · M315F
Devices
Ki Note
Ki Cost-effectiveness
No price,
no Ki
no Ki
Cost-effectiveness
Design & Materials
7.5
7.4
Performance & Hardware
7.3
7.5
Camera
6.8
8.2
Connectivity
6.7
7.8
Battery
9.1
9.1
Design & Materials
Structure
Size
75.1 mm
159.0 mm
8.9 mm
159.0 mm
8.9 mm
75.1 mm
159.2 mm
8.9 mm
159.2 mm
8.9 mm
Weight
188 g
191 g
Usable surface
84 %
84 %
Materials
Plastic
Plastic
Resistance
-
-
Colors
Black
Blue
Green
Black
Blue
Screen
Diagonal
6.4"
6.4"
Type
Super Amoled
Super Amoled
Aspect Ratio
19.5:9
19.5:9
Resolution
1080 x 2340 px
1080 x 2340 px
Density
403 Pixels per inch
403 Pixels per inch
Others
- Capacitive
- Corning Gorilla Glass 3
- Frameless
- Infinity-U display
- Multi-touch
- Notch
- Water Drop Notch
- Peak brightness - 420 cd/m²
- Capacitive
- Corning Gorilla Glass 3
- Frameless
- Infinity-U display
- Multi-touch
- Notch
- Water Drop Notch
- Peak brightness - 420 cd/m²
Prototypes
Photos
Photos
Performance & Hardware
Processor
Model
Samsung Exynos 7 Octa 9611
Samsung Exynos 7 Octa 9611
CPU
4x2.3 GHz ARM Cortex-A73+ 4x1.7 GHz ARM Cortex-A53
4x2.3 GHz ARM Cortex-A73+ 4x1.7 GHz ARM Cortex-A53
Type
Octa-Core
Octa-Core
Frequency
2.3 GHz
2.3 GHz
64 Bits
Yes
Yes
Graphics
GPU
ARM Mali-G72 MP3
ARM Mali-G72 MP3
RAM
RAM
4 GB
6 GB
Type
LPDDR4X RAM
LPDDR4X RAM
Antutu
Score
180.011
(Antutu v8)
Overall performance better than 83% of devices
180.011
(Antutu v8)
Overall performance better than 83% of devices
Storage
Capacity
64 GB
128 GB
Type
eMMC 5.1 Storage
eMMC 5.1 Storage
SD Slot
Yes
Independent SD slot
Independent SD slot
Yes
Independent SD slot
Independent SD slot
Security
Fingerprint
Yes, in the back
Yes, in the back
Sensors
Sensors
- Fingerprint
- Accelerometer
- Compass
- Geomagnetic
- Gyroscope
- Proximity
- Fingerprint
- Accelerometer
- Compass
- Geomagnetic
- Gyroscope
- Proximity
Others
Notifications LED
--
--
Cooling system
No
No
Gaming buttons
No
No
Camera
Triple rear camera
-
Standard
- 1
- Resolution
- 48 Mpx
- Sensor
- Samsung
- Type
- CMOS
- Aperture
- ƒ/ 2.0
- ISO
- --
- Pixel size
- --
-
Wide Angle lens
- 2
- Resolution
- 8 Mpx
- Sensor
- Unknown
- Type
- --
- Aperture
- ƒ/ 2.2
- ISO
- --
- Pixel size
- --
-
Portrait mode (depth)
- 3
- Resolution
- 5 Mpx
- Sensor
- Unknown
- Type
- --
- Aperture
- ƒ/ 2.2
- ISO
- --
- Pixel size
- --
Quad rear camera
-
Standard
- 1
- Resolution
- 64 Mpx
- Sensor
- Samsung Bright S5KGW1
- Type
- ISOCELL
- Aperture
- ƒ/ 1.8
- ISO
- 100 - 800
- Pixel size
- 0.80 µm
- Sensor size
- 1/1.72
-
Wide Angle lens
- 2
- Resolution
- 8 Mpx
- Sensor
- Unknown
- Type
- --
- Aperture
- ƒ/ 2.2
- ISO
- --
- Pixel size
- --
-
Portrait mode (depth)
- 3
- Resolution
- 5 Mpx
- Sensor
- Unknown
- Type
- --
- Aperture
- ƒ/ 2.2
- ISO
- --
- Pixel size
- --
-
Macro lens
- 4
- Resolution
- 5 Mpx
- Sensor
- Unknown
- Type
- --
- Aperture
- ƒ/ 2.2
- ISO
- --
- Pixel size
- --
Flash
LED
LED
Features
- 4K Video
- Autofocus
- Continuous shooting
- Digital zoom
- Exposure compensation
- Face detection
- Geotagging
- HDR
- ISO settings
- Scene mode
- Self-timer
- Touch focus
- Triple camera
- White balance settings
- 4K Video
- Autofocus
- Continuous shooting
- Digital zoom
- Exposure compensation
- Face detection
- Geotagging
- HDR
- ISO settings
- Quadruple camera
- Scene mode
- Self-timer
- Touch focus
- White balance settings
Slow Motion Video
Yes
240 fps
240 fps
No
30 fps
30 fps
Optical Stabilisation
No
No
Selfie
- Resolution
- 20 Mpx
- Sensor
- Unknown
- Type
- CMOS
- Aperture
- ƒ/ 2.2
- ISO
- --
- Pixel size
- --
- Resolution
- 32 Mpx
- Sensor
- Sony IMX616
- Type
- CMOS
- Aperture
- ƒ/ 2.0
- ISO
- --
- Pixel size
- 0.80 µm
- Sensor size
- 1/2.8
Features
-
-
Connectivity
Networks
5G
-
-
4G LTE
- B1 (2100)
- B3 (1800)
- B5 (850)
- B7 (2600)
- B8 (900)
- B20 (800)
- B38 (TDD 2600)
- B40 (TDD 2300)
- B41 (TDD 2500)
- B1 (2100)
- B2 (1900)
- B3 (1800)
- B4 (1700/2100 AWS 1)
- B5 (850)
- B7 (2600)
- B8 (900)
- B12 (700)
- B13 (700)
- B17 (700)
- B20 (800)
- B26 (850)
- B28 (700)
- B38 (TDD 2600)
- B40 (TDD 2300)
- B41 (TDD 2500)
- B66 (1700/2100)
3G
- B1 (2100)
- B2 (1900)
- B5 (850)
- B8 (900)
- B1 (2100)
- B2 (1900)
- B5 (850)
- B8 (900)
2G
- B2 (1900)
- B3 (1800)
- B5 (850)
- B8 (900)
- B2 (1900)
- B3 (1800)
- B5 (850)
- B8 (900)
SIM card
Dual SIM
Dual Sim Dual Standby
Dual Sim Dual Standby
Type
Nano SIM
Nano SIM
Nano SIM
Nano SIM
Nano SIM
Nano SIM
Wi-Fi
Wi-Fi
- 802.11a
- 802.11ac
- 802.11b
- 802.11g
- 802.11n
- 802.11n 5GHz
- 802.11a
- 802.11ac
- 802.11b
- 802.11g
- 802.11n
- 802.11n 5GHz
Others
- Dual band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Dual band
- Wi-Fi Direct
- Wi-Fi Hotspot
Bluetooth
Version
Bluetooth 5.0
Bluetooth 5.0
Others
- A2DP (Advanced Audio Distribution Profile)
- AVRCP (Audio/Visual Remote Control Profile)
- DIP (Device ID Profile)
- HFP (Hands-Free Profile)
- HID (Human Interface Profile)
- HOGP
- HSP (Headset Profile)
- MAP (Message Access Profile)
- OPP (Object Push Profile)
- PAN (Personal Area Networking Profile)
- PBAP/PAB (Phone Book Access Profile)
- A2DP (Advanced Audio Distribution Profile)
- AVRCP (Audio/Visual Remote Control Profile)
- DIP (Device ID Profile)
- HFP (Hands-Free Profile)
- HID (Human Interface Profile)
- HOGP
- HSP (Headset Profile)
- MAP (Message Access Profile)
- OPP (Object Push Profile)
- PAN (Personal Area Networking Profile)
- PBAP/PAB (Phone Book Access Profile)
Navigation
Navigation
- A-GPS
- Beidou
- Galileo
- GLONASS
- GPS
- A-GPS
- Beidou
- GLONASS
- GPS
USB
USB
- Charging
- Mass Storage
- USB On-The-Go (OTG)
- USB Type C
- Charging
- Mass Storage
- USB On-The-Go (OTG)
- USB Type C
SAR
European measurement
The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue.
0.468 W/Kg on head
-- W/Kg on body
-- W/Kg on body
0.482 W/Kg on head
1.127 W/Kg on body
1.127 W/Kg on body
American measurement
The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue
--
--
Others
Others
- Audio Jack
- Radio FM
- Computer sync
- OTA sync
- Tethering.
- VoLTE
- Audio Jack
- Radio FM
- ANT+
- Computer sync
- OTA sync
- Tethering.
- VoLTE
Battery
Battery
Capacity
6000 mAh
6000 mAh
Type
Li-Ion
Li-Ion
Fast charge
Yes, 15.0W
Yes, 15.0W
Others
- Non-removable
- Non-removable
Software
Software
Operating System
Android 10
Android 10
Prices
Prices unavailable
Prices
How is the exchange rate calculated?