Redmi Note 9 vs Microsoft Lumia 640 XL LTE Dual SIM comparison

Compare Redmi Note 9
Compare Microsoft Lumia 640 XL LTE Dual SIM
ratings
Overall NDTV RatingRead Review-
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.53-inch5.70-inch
ProcessorMediaTek Helio G85Qualcomm Snapdragon 400
Front Camera13-megapixel5-megapixel
Rear Camera48-megapixel + 8-megapixel + 2-megapixel + 2-megapixel 13-megapixel
RAM4GB1GB
Storage64GB8GB
Battery Capacity5020mAh3120mAh
OSAndroid 10Windows Phone 8.1
Resolution1080x2340 pixels720x1280 pixels
general
BrandXiaomiMicrosoft
ModelRedmi Note 9Lumia 640 XL LTE Dual SIM
Release dateApril 30, 2020March 1, 2015
Launched in IndiaYes-
Form factorTouchscreenTouchscreen
Dimensions (mm)162.30 x 77.20 x 8.90157.90 x 81.50 x 9.00
Weight (g)199.00171.00
Battery capacity (mAh)50203120
Fast chargingProprietary-
ColoursAqua Green, Arctic White, Pebble Grey, Scarlet Red-
Removable battery-Yes
display
Screen size (inches)6.535.70
TouchscreenYesYes
Resolution1080x2340 pixels720x1280 pixels
Aspect ratio19.5:9-
Pixels per inch (PPI)-259
hardware
Processor1.8GHz octa-core (6x1.8GHz + 2x2GHz)1.2GHz quad-core
Processor makeMediaTek Helio G85Qualcomm Snapdragon 400
RAM4GB1GB
Internal storage64GB8GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)512128
Dedicated microSD slotYes-
camera
Rear camera48-megapixel (f/1.79) + 8-megapixel (f/2.2) + 2-megapixel (f/2.4) + 2-megapixel (f/2.4)13-megapixel
Rear autofocusYes-
Rear flashYesLED
Front camera13-megapixel5-megapixel
software
Operating systemAndroid 10Windows Phone 8.1
SkinMIUI 11-
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n802.11 b/g/n
GPSYesYes
BluetoothYes, v 5.00Yes, v 4.00
NFCYesYes
InfraredYesNo
USB Type-CYes-
Headphones3.5mm3.5mm
Number of SIMs22
USB OTG-No
FM-Yes
Wi-Fi Direct-Yes
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMMicro-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sim 2
SIM TypeNano-SIMMicro-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sensors
Face unlockYes-
Fingerprint sensorYes-
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesNo
Barometer-No
Temperature sensor-No

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