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Vivo X21 vs Xiaomi Mi 3 comparison

 Compare Vivo X21
Vivo X21
Compare Xiaomi Mi 3
Xiaomi Mi 3
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
Display6.28-inch5.00-inch
ProcessorQualcomm Snapdragon 660Qualcomm Snapdragon 800
Front Camera12-megapixel 2-megapixel
Rear Camera12-megapixel + 5-megapixel 13-megapixel
RAM6GB2GB
Storage128GB16GB
Battery Capacity3200mAh3050mAh
OSAndroid 8.1Android 4.4
Resolution1080x2280 pixels1080x1920 pixels
general
BrandVivoXiaomi
ModelX21Mi 3
Release dateMarch 1, 2018September 1, 2013
Launched in IndiaYes-
Form factorTouchscreenTouchscreen
Dimensions (mm)154.50 x 74.80 x 7.40144.00 x 72.00 x 8.10
Weight (g)156.20145.00
Battery capacity (mAh)32003050
Removable batteryNoNo
Fast chargingProprietary-
ColoursBlack, GoldMetallic Grey
display
Screen size (inches)6.285.00
TouchscreenYesYes
Resolution1080x2280 pixels1080x1920 pixels
Aspect ratio19:9-
Pixels per inch (PPI)-441
hardware
Processor2.2GHz octa-core2.3GHz quad-core
Processor makeQualcomm Snapdragon 660Qualcomm Snapdragon 800 (MSM8274AB)
RAM6GB2GB
Internal storage128GB16GB
Expandable storageYesNo
Expandable storage typemicroSD-
Expandable storage up to (GB)256-
camera
Rear camera12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)13-megapixel
Rear autofocusPhase detection autofocus-
Rear flashLEDDual LED
Front camera12-megapixel (f/2.0)2-megapixel
software
Operating systemAndroid 8.1Android 4.4
SkinFunTouch 4.0MIUI version 5
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 a/b/g/n/ac
GPSYesYes
BluetoothYes, v 5.00Yes, v 4.00
NFCNoYes
InfraredNoNo
USB OTGYesYes
Micro-USBYes-
Headphones3.5mm3.5mm
FMNoYes
Number of SIMs21
Wi-Fi Direct-Yes
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMRegular
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesNo
sim 2
SIM TypeNano-SIM-
GSM/CDMAGSM-
3GYes-
4G/ LTEYes-
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
Barometer-Yes
Temperature sensor-No
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