Realme X7 Max vs Vivo X21 comparison

Compare Realme X7 Max
Compare Vivo X21s
ratings
Overall NDTV RatingRead Review-
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.43-inch6.41-inch
ProcessorMediaTek Dimensity 1200Qualcomm Snapdragon 660
Front Camera16-megapixel 24.8-megapixel
Rear Camera64-megapixel + 8-megapixel + 2-megapixel 12-megapixel + 5-megapixel
RAM8GB, 12GB6GB
Storage128GB, 256GB128GB
Battery Capacity4500mAh3400mAh
OSAndroid 11Android 8.1 Oreo
Resolution1080x2400 pixels1080x2340 pixels
general
BrandRealmeVivo
ModelX7 MaxX21s
Release dateMay 31, 2021November 1, 2018
Launched in IndiaNo-
Form factorTouchscreenTouchscreen
Dimensions (mm)158.50 x 73.30 x 8.40157.91 x 75.08 x 7.90
Weight (g)179.00156.00
Battery capacity (mAh)45003400
Fast chargingProprietary-
ColoursAsteroid Black, Mercury Silver, Milky WayStarry Night Black
display
Screen size (inches)6.436.41
TouchscreenYesYes
Resolution1080x2400 pixels1080x2340 pixels
Aspect ratio20:919.5:9
hardware
Processorocta-coreocta-core
Processor makeMediaTek Dimensity 1200Qualcomm Snapdragon 660
RAM8GB, 12GB6GB
Internal storage128GB, 256GB128GB
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-256
camera
Rear camera64-megapixel (f/1.8) + 8-megapixel (f/2.3) + 2-megapixel (f/2.4)12-megapixel + 5-megapixel
No. of Rear Cameras3-
Rear autofocusYesYes
Rear flashYes-
Front camera16-megapixel (f/2.5)24.8-megapixel
No. of Front Cameras1-
software
Operating systemAndroid 11Android 8.1 Oreo
SkinRealme UI 2.0-
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac/ax-
GPSYesYes
BluetoothYes, v 5.10Yes
USB Type-CYes-
Headphones3.5mm3.5mm
Number of SIMs22
Active 4G on both SIM cardsYes-
Micro-USB-Yes
sim 1
SIM TypeNano-SIM-
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
sim 2
SIM TypeNano-SIM-
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
sensors
In-Display Fingerprint SensorYes-
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
Face unlock-Yes
Fingerprint sensor-Yes
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