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Samsung Galaxy A51 vs Xiaomi Redmi K20 comparison

 Compare Samsung Galaxy A51
Samsung Galaxy A51
Compare Xiaomi Redmi K20
Xiaomi Redmi K20
ratings
Overall NDTV RatingRead ReviewRead Review
Design Rating
Display Rating
Software Rating
Performance Rating
Battery Life Rating
Camera Rating
Value for Money Rating
key specs
Display6.50-inch6.39-inch
Front Camera32-megapixel 20-megapixel
Rear Camera48-megapixel + 12-megapixel + 5-megapixel + 5-megapixel 48-megapixel + 8-megapixel + 13-megapixel
RAM6GB6GB
Storage128GB64GB
Battery Capacity4000mAh4000mAh
OSAndroid 10Android Pie
Resolution1080x2400 pixels1080x2340 pixels
Processor-Qualcomm Snapdragon 730
general
BrandSamsungXiaomi
ModelGalaxy A51Redmi K20
Release dateJanuary 1, 2020May 28, 2019
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Dimensions (mm)158.50 x 73.60 x 7.90156.70 x 74.30 x 8.80
Weight (g)172.00191.00
Battery capacity (mAh)40004000
Fast chargingProprietaryProprietary
ColoursPrism Crush Blue, Prism Crush Black, Prism Crush Pink, Prism Crush WhiteCarbon Black, Glacier Blue, Flame Red
Body type-Glass
display
Screen size (inches)6.506.39
TouchscreenYesYes
Resolution1080x2400 pixels1080x2340 pixels
Protection type-Gorilla Glass
Aspect ratio-19.5:9
Pixels per inch (PPI)-403
hardware
Processor makeSamsung Exynos 9611Qualcomm Snapdragon 730
RAM6GB6GB
Internal storage128GB64GB
Expandable storageYesNo
Expandable storage typemicroSD-
Expandable storage up to (GB)512-
Dedicated microSD slotYesNo
Processor-1.8GHz octa-core (6x1.8GHz + 2x2.2GHz)
camera
Rear camera48-megapixel (f/2.0) + 12-megapixel (f/2.2) + 5-megapixel (f/2.2) + 5-megapixel (f/2.4)48-megapixel (f/1.75, 1.6-micron) + 8-megapixel (f/2.4, 1.12-micron) + 13-megapixel (f/2.4, 1.12-micron)
Front camera32-megapixel (f/2.2)20-megapixel (f/2.2, 0.8-micron)
Rear autofocus-Yes
Rear flash-Yes
Pop-Up Camera-Yes
Front flash-No
software
Operating systemAndroid 10Android Pie
SkinOne UI 2.0MIUI 10
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 ac802.11 a/b/g/n/ac
GPSYesYes
BluetoothYes, v 5.00Yes, v 5.00
NFCYesNo
USB OTGYes-
USB Type-CYesYes
Headphones3.5mm3.5mm
FMYes-
Number of SIMs22
Wi-Fi DirectYesYes
Active 4G on both SIM cardsYesYes
Infrared-Yes
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
GyroscopeYesYes

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