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Samsung Galaxy M21 (6GB RAM, 128GB) vs Oppo A7 comparison

 Compare Samsung Galaxy M21 (6GB RAM, 128GB)
Samsung Galaxy M21 (6GB RAM, 128GB)
Compare Oppo A7
Oppo A7 (3GB RAM, 64GB)
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
Display6.40-inch6.20-inch
ProcessorSamsung Exynos 9611-
Front Camera20-megapixel16-megapixel
Rear Camera48-megapixel + 8-megapixel + 5-megapixel13-megapixel + 2-megapixel
RAM6GB4GB
Storage128GB64GB
Battery Capacity6000mAh4230mAh
OSAndroid 10Android 8.1
Resolution2340x1080 pixels-
general
BrandSamsungOppo
ModelGalaxy M21A7
Release dateMarch 18, 2020November 1, 2018
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Thickness8.9-
Weight (g)188.00168.00
Battery capacity (mAh)60004230
Removable batteryNoNo
Fast chargingProprietary-
Wireless chargingNo-
ColoursIceberg Blue, Midnight Blue, Raven BlackGlaring Gold, Glaze Blue
Body type-Plastic
Dimensions (mm)-155.90 x 75.40 x 8.10
SAR value-1.37
display
Screen size (inches)6.406.20
TouchscreenYesYes
Resolution2340x1080 pixels-
Protection typeGorilla Glass-
Aspect ratio19.5:919.5:9
hardware
Processor1.7GHz octa-core (4x1.7GHz + 4x2.3GHz)-
Processor makeSamsung Exynos 9611Qualcomm Snapdragon 450
RAM6GB4GB
Internal storage128GB64GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)512256
Dedicated microSD slot-Yes
camera
Rear camera48-megapixel + 8-megapixel + 5-megapixel13-megapixel (f/2.2) + 2-megapixel (f/2.4)
Rear autofocusYesYes
Rear flashYesYes
Front camera20-megapixel16-megapixel
Front flashNoNo
Front autofocus-No
software
Operating systemAndroid 10Android 8.1
SkinOne UI 2.0ColorOS 5.2
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g802.11 a/b/g/n
GPSYesYes
BluetoothYesYes, v 4.20
USB Type-CYes-
Headphones3.5mm3.5mm
Number of SIMs22
USB OTG-Yes
Micro-USB-Yes
FM-Yes
Active 4G on both SIM cards-Yes
sim 1
SIM TypeNano-SIM-
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sim 2
SIM TypeNano-SIM-
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sensors
Face unlockYesYes
Fingerprint sensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
Gyroscope-Yes

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