Redmi K40 vs Vivo Y91i comparison

Compare Redmi K40
Compare Vivo Y91i
key specs
Display6.67-inch6.22-inch
ProcessorQualcomm Snapdragon 870MediaTek Helio P22
Front Camera20-megapixel5-megapixel
Rear Camera48-Ultrapixel + 8-megapixel + 5-megapixel13-megapixel
RAM6GB2GB
Storage128GB16GB
Battery Capacity4520mAh4030mAh
OSAndroid 11Android 8.1
Resolution1080x2400 pixels720x1520 pixels
general
BrandXiaomiVivo
ModelRedmi K40Y91i
Release date25th February 2021March 2019
Launched in IndiaNoYes
Form factorTouchscreenTouchscreen
Dimensions (mm)163.70 x 76.40 x 7.80155.11 x 75.09 x 8.28
Weight (g)196.00163.50
Battery capacity (mAh)45204030
Fast chargingProprietary-
ColoursDreamland, Glossy Black, Icy WhiteFusion Black, Ocean Blue
display
Screen size (inches)6.676.22
TouchscreenYesYes
Resolution1080x2400 pixels720x1520 pixels
Aspect ratio20:919:9
hardware
Processorocta-coreocta-core
Processor makeQualcomm Snapdragon 870MediaTek Helio P22 (MT6762)
RAM6GB2GB
Internal storage128GB16GB
Expandable storage-Yes
Expandable storage type-microSD
camera
Rear camera48-Ultrapixel (f/1.79) + 8-megapixel + 5-megapixel13-megapixel (f/2.2)
No. of Rear Cameras3-
Rear autofocusYesYes
Rear flashYesYes
Front camera20-megapixel5-megapixel (f/1.8)
No. of Front Cameras1-
software
Operating systemAndroid 11Android 8.1
SkinMIUI 12Funtouch OS 4.5
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac/Yes-
GPSYesYes
BluetoothYes, v 5.10Yes, v 5.00
NFCYes-
InfraredYes-
USB Type-CYes-
Number of SIMs22
USB OTG-Yes
Micro-USB-Yes
Headphones-3.5mm
FM-Yes
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
sim 2
SIM TypeNano-SIMNano-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-No
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