Realme C21 vs Redmi 7A comparison

Compare Realme C21
Compare Redmi 7A
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-inch5.45-inch
ProcessorMediaTek Helio G35Qualcomm Snapdragon 439
Front Camera5-megapixel 5-megapixel
Rear Camera13-megapixel + 2-megapixel + 2-megapixel 12-megapixel
RAM3GB, 4GB2GB
Storage32GB, 64GB16GB
Battery Capacity5000mAh4000mAh
OSAndroid 10Android 9 Pie
Resolution720x1600 pixels720x1440 pixels
general
BrandRealmeXiaomi
ModelC21Redmi 7A
Release dateApril 8, 2021May 22, 2019
Launched in IndiaYesYes
Dimensions (mm)165.20 x 76.40 x 8.90146.30 x 70.41 x 9.55
Weight (g)190.00165.00
Battery capacity (mAh)50004000
ColoursCross Black, Cross BlueMatte Gold, Matte Black, Matte Blue
Form factor-Touchscreen
Body type-Polycarbonate
display
Screen size (inches)6.505.45
TouchscreenYesYes
Resolution720x1600 pixels720x1440 pixels
Aspect ratio-18:9
Pixels per inch (PPI)-295
hardware
Processorocta-core2GHz octa-core
Processor makeMediaTek Helio G35Qualcomm Snapdragon 439
RAM3GB, 4GB2GB
Internal storage32GB, 64GB16GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)256256
Dedicated microSD slotYesYes
camera
Rear camera13-megapixel (f/2.2) + 2-megapixel (f/2.4) + 2-megapixel (f/2.4)12-megapixel (f/2.2, 1.25-micron)
No. of Rear Cameras3-
Front camera5-megapixel (f/2.2)5-megapixel
No. of Front Cameras1-
Rear autofocus-Phase detection autofocus
Rear flash-LED
software
Operating systemAndroid 10Android 9 Pie
SkinRealme UIMIUI 10
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 b/g/n802.11 b/g/n
GPSYesYes
BluetoothYes, v 5.00Yes, v 4.20
Micro-USBYesYes
Headphones3.5mm3.5mm
Number of SIMs22
FM-Yes
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes

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