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Samsung Galaxy S21 vs Samsung Galaxy A21 comparison

 Compare Samsung Galaxy S21
Samsung Galaxy S21
Compare Samsung Galaxy A21s
Samsung Galaxy A21s
ratings
Overall NDTV RatingRead Review-
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.20-inch6.50-inch
ProcessorSamsung Exynos 2100Samsung Exynos 850
Front Camera10-megapixel 13-megapixel
Rear Camera12-megapixel + 12-megapixel + 64-megapixel 48-megapixel + 8-megapixel + 2-megapixel + 2-megapixel
RAM8GB4GB
Storage128GB, 256GB64GB
Battery Capacity4000mAh5000mAh
OSAndroid 11Android 10
Resolution1080x2400 pixels720x1600 pixels
general
BrandSamsungSamsung
ModelGalaxy S21Galaxy A21s
Release dateJanuary 14, 2021May 15, 2020
Form factorTouchscreenTouchscreen
Dimensions (mm)151.70 x 71.20 x 7.90163.60 x 75.30 x 8.90
Weight (g)171.00191.00
IP ratingIP68-
Battery capacity (mAh)40005000
Fast chargingProprietaryProprietary
Wireless chargingYes-
ColoursPhantom VioletWhite, Black, Blue
Launched in India-Yes
Removable battery-No
display
Screen size (inches)6.206.50
TouchscreenYesYes
Resolution1080x2400 pixels720x1600 pixels
Protection typeGorilla Glass-
Aspect ratio20:9-
Pixels per inch (PPI)421-
hardware
Processor2.2GHz octa-core (3x2.8GHz + 4x2.2GHz + 1x2.9GHz)2GHz octa-core
Processor makeSamsung Exynos 2100Samsung Exynos 850
RAM8GB4GB
Internal storage128GB, 256GB64GB
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-512
Dedicated microSD slot-Yes
camera
Rear camera12-megapixel (f/1.8, 1.8-micron) + 12-megapixel (f/2.2, 1.4-micron) + 64-megapixel (f/2.0, 0.8-micron)48-megapixel (f/2.0) + 8-megapixel (f/2.0) + 2-megapixel (f/2.4) + 2-megapixel (f/2.4)
No. of Rear Cameras3-
Rear autofocusYes-
Rear flashYesYes
Front camera10-megapixel (f/2.2, 1.22-micron)13-megapixel (f/2.2)
No. of Front Cameras1-
software
Operating systemAndroid 11Android 10
SkinOne UI 3.1One UI
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac/ax-
GPSYes-
BluetoothYes, v 5.00Yes, v 5.00
NFCYesYes
USB Type-CYes-
Number of SIMs2-
Headphones-3.5mm
sim 1
SIM TypeNano-SIM-
GSM/CDMAGSM-
3GYes-
4G/ LTEYes-
5GYes-
sim 2
SIM TypeNano-SIM-
GSM/CDMAGSM-
3GYes-
4G/ LTEYes-
5GYes-
sensors
Face unlockYes-
In-Display Fingerprint SensorYes-
Compass/ MagnetometerYes-
Proximity sensorYes-
AccelerometerYes-
Ambient light sensorYes-
GyroscopeYes-
BarometerYes-
Fingerprint sensor-Yes

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