Want to compare Samsung M21 vs Samsung M31 mobile? You have come to the right place. Here you can find Samsung M21 vs Samsung M31 comparison based on display size, processor speed, camera resolution, user experience, memory size, connectivity strength, and overall dimension.

Related: Check out latest Samsung M21 price in India on Priceo.

On one hand, Samsung Galaxy M21 comes with a 6.4-inch Super-AMOLED display having a screen resolution of 1,080 x 2,340 pixels. The camera of the device is good for photography lovers. At the front, there is a 20MP lens, which is a rather better camera to capture selfie pictures. In terms of storage, the device has 64GB internal memory that can keep a lot of media files, data, apps, and games.The Samsung Galaxy M21 comes with a Li-ion battery having 6,000mAh capacity, which is huge to provide more than a day of power backup.

On the other hand, Samsung M31 comes with a 6.4-inch Super AMOLED display, which gets a waterdrop style notch over the bezel-less screen. It has a screen resolution of 1,080 x 2,340 pixels along with a pixel density of 403 PPI. It can offer a great viewing experience over the spacious screen.In terms of optics, the smartphone has been provided with a 64MP f/1.8 + 8MP f/2.2 + 5MP f/2.4 + 5MP f/2.2 quad rear camera which can capture amazing pictures. It also has a 32MP f/2.0 front camera to click stunning portraits.

Our recommendation: We recommend you to buy Samsung M31 over Samsung M21 because it is better value for money package and offers a better display and camera. 

Samsung M21 vs Samsung M31 Comparison Table

Key Specs
Display6.40-inch6.40-inch
ProcessorSamsung Exynos 9611Samsung Exynos 9611
Front Camera20-megapixel32-megapixel
Rear Camera48-megapixel + 8-megapixel + 5-megapixel64-megapixel + 8-megapixel + 5-megapixel + 5-megapixel
RAM4GB6GB
Storage64GB128GB
Battery Capacity6000mAh6000mAh
OSAndroid 10Android 10
Resolution2340×1080 pixels1080×2340 pixels
 
General
BrandSamsungSamsung
ModelGalaxy M21Galaxy M31
Release dateMarch 18, 2020February 26, 2020
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Thickness8.9
Weight (g)188.00191.00
Battery capacity (mAh)60006000
Removable batteryNoNo
Fast chargingProprietary
Wireless chargingNoNo
ColoursMidnight Blue, Raven BlackBlue, Black
Body typePlastic
Dimensions (mm)159.20 x 75.10 x 8.90
Display
Screen size (inches)6.406.40
TouchscreenYesYes
Resolution2340×1080 pixels1080×2340 pixels
Protection typeGorilla Glass
Aspect ratio19.5:919.5:9
Hardware
Processor1.7GHz octa-core (4×1.7GHz + 4×2.3GHz)2.3GHz octa-core (4×2.3GHz + 4×1.7GHz)
Processor makeSamsung Exynos 9611Samsung Exynos 9611
RAM4GB6GB
Internal storage64GB128GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)512512
Dedicated microSD slotYes
Camera
Rear camera48-megapixel + 8-megapixel + 5-megapixel64-megapixel (f/1.8) + 8-megapixel (f/2.2) + 5-megapixel (f/2.2) + 5-megapixel (f/2.4)
Rear autofocusYesYes
Rear flashYesYes
Front camera20-megapixel32-megapixel (f/2.0)
Front flashNo
Software
Operating systemAndroid 10Android 10
SkinOne UI 2.0One UI 2.0
Connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g802.11 a/b/g/n/ac
GPSYesYes
BluetoothYesYes, v 5.00
USB Type-CYesYes
Headphones3.5mm3.5mm
Number of SIMs22
Active 4G on both SIM cardsYes
Sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
Sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
Sensors
Face unlockYesYes
Fingerprint sensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYes