Samsung Galaxy A31 vs Samsung Galaxy M21 comparison a646g

Show Only Differences Highlight Differences	Samsung Galaxy A31	Samsung Galaxy M21
ratings
Overall NDTV Rating	Read Review	Read Review
Design Rating
Display Rating
Software Rating
Performance Rating
Battery Life Rating
Camera Rating
Value for Money Rating
key specs
Display	6.40-inch	6.40-inch
Processor	MediaTek Helio P65	Samsung Exynos 9611
Front Camera	20-megapixel	20-megapixel
Rear Camera	48-megapixel + 8-megapixel + 5-megapixel + 5-megapixel	48-megapixel + 8-megapixel + 5-megapixel
RAM	6GB	4GB
Storage	128GB	64GB
Battery Capacity	5000mAh	6000mAh
OS	Android 10	Android 10
Resolution	1080x2400 pixels	2340x1080 pixels
general
Brand	Samsung	Samsung
Model	Galaxy A31	Galaxy M21
Release date	March 24, 2020	March 18, 2020
Launched in India	Yes	Yes
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	159.30 x 73.10 x 8.60	-
Weight (g)	185.00	188.00
Battery capacity (mAh)	5000	6000
Removable battery	No	No
Fast charging	Proprietary	Proprietary
Wireless charging	No	No
Colours	Prism Crush Black, Prism Crush Blue, Prism Crush White	Midnight Blue, Raven Black
Thickness	-	8.9
display
Screen size (inches)	6.40	6.40
Touchscreen	Yes	Yes
Resolution	1080x2400 pixels	2340x1080 pixels
Aspect ratio	20:9	19.5:9
Protection type	-	Gorilla Glass
hardware
Processor	2GHz octa-core (2x2GHz + 6x1.7GHz)	1.7GHz octa-core (4x1.7GHz + 4x2.3GHz)
Processor make	MediaTek Helio P65	Samsung Exynos 9611
RAM	6GB	4GB
Internal storage	128GB	64GB
Expandable storage	Yes	Yes
Expandable storage type	microSD	microSD
Expandable storage up to (GB)	512	512
camera
Rear camera	48-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 autofocus	Yes	Yes
Rear flash	Yes	Yes
Front camera	20-megapixel (f/2.2)	20-megapixel
Front flash	-	No
software
Operating system	Android 10	Android 10
Skin	One UI 2.1	One UI 2.0
connectivity
Wi-Fi	Yes	Yes
Wi-Fi standards ed	802.11 a/b/g/n	802.11 a/b/g
GPS	Yes	Yes
Bluetooth	Yes	Yes
NFC	Yes	-
USB Type-C	Yes	Yes
Number of SIMs	2	2
Headphones	-	3.5mm
sim 1
SIM Type	Nano-SIM	Nano-SIM
GSM/CDMA	GSM	GSM
3G	Yes	Yes
4G/ LTE	Yes	Yes
sim 2
SIM Type	Nano-SIM	Nano-SIM
GSM/CDMA	GSM	GSM
3G	Yes	Yes
4G/ LTE	Yes	Yes
sensors
Face unlock	Yes	Yes
In-Display Fingerprint Sensor	Yes	-
Com/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Fingerprint sensor	-	Yes

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