Samsung Galaxy A31 vs Samsung Galaxy M21 comparison

Compare Samsung Galaxy A31
Compare Samsung Galaxy M21
key specs
Display6.40-inch6.40-inch
ProcessorMediaTek Helio P65Samsung Exynos 9611
Front Camera20-megapixel 20-megapixel
Rear Camera48-megapixel + 8-megapixel + 5-megapixel + 5-megapixel 48-megapixel + 8-megapixel + 5-megapixel
RAM4GB4GB
Storage64GB64GB
Battery Capacity5000mAh6000mAh
OSAndroid 10Android 10
Resolution1080x2400 pixels2340x1080 pixels
general
BrandSamsungSamsung
ModelGalaxy A31Galaxy M21
Release date24th March 202018th March 2020
Launched in IndiaNoYes
Form factorTouchscreenTouchscreen
Dimensions (mm)159.30 x 73.10 x 8.60-
Weight (g)185.00188.00
Battery capacity (mAh)50006000
Removable batteryNoNo
Fast chargingProprietaryProprietary
Wireless chargingNoNo
ColoursPrism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush WhiteMidnight Blue, Raven Black
Thickness-8.9
display
Screen size (inches)6.406.40
TouchscreenYesYes
Resolution1080x2400 pixels2340x1080 pixels
Aspect ratio20:919.5:9
Protection type-Gorilla Glass
hardware
Processor2GHz octa-core (2x2GHz + 6x1.7GHz)1.7GHz octa-core (4x1.7GHz + 4x2.3GHz)
Processor makeMediaTek Helio P65Samsung Exynos 9611
RAM4GB4GB
Internal storage64GB64GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)512512
camera
Rear camera48-megapixel (f/2.0) + 8-megapixel (f/2.2) + 5-megapixel (f/2.4) + 5-megapixel (f/2.4)48-megapixel + 8-megapixel + 5-megapixel
Rear autofocusYesYes
Rear flashYesYes
Front camera20-megapixel (f/2.2)20-megapixel
Front flash-No
software
Operating systemAndroid 10Android 10
SkinOne UI 2.0One UI 2.0
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n802.11 a/b/g
GPSYesYes
BluetoothYesYes
USB Type-CYesYes
Number of SIMs22
Headphones-3.5mm
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
In-Display Fingerprint SensorYes-
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes

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