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Redmi A3x vs Microsoft Lumia 640 comparison

 Compare Redmi A3x
Redmi A3x
Compare Microsoft Lumia 640
Microsoft Lumia 640
key specs
Display6.71-inch5.00-inch
Front Camera5-megapixel0.9-megapixel
Rear Camera8-megapixel + Unspecified8-megapixel
RAM3GB, 4GB1GB
Storage64GB, 128GB8GB
Battery Capacity5000mAh2500mAh
OSAndroid 14Windows Phone 8.1
Resolution720x1650 pixels720x1280 pixels
Processor-Qualcomm Snapdragon 400
general
BrandRedmiMicrosoft
ModelA3xLumia 640
Release dateJune 5, 2024February 1, 2015
Launched in IndiaNo-
Form factorTouchscreenTouchscreen
Dimensions (mm)168.30 x 76.30 x 8.30141.30 x 72.20 x 8.80
Weight (g)199.00145.00
Battery capacity (mAh)50002500
Removable batteryNoYes
Wireless chargingNo-
ColoursAurora Green, Midnight Black, Moonlight White-
display
Refresh Rate90 Hz-
Resolution StandardHD+-
Screen size (inches)6.715.00
TouchscreenYesYes
Resolution720x1650 pixels720x1280 pixels
Pixels per inch (PPI)-294
hardware
Processor makeUnisoc T603Qualcomm Snapdragon 400
RAM3GB, 4GB1GB
Internal storage64GB, 128GB8GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)1024128
Processor-1.2GHz quad-core
camera
Rear camera8-megapixel + Unspecified8-megapixel
No. of Rear Cameras2-
Front camera5-megapixel0.9-megapixel
No. of Front Cameras1-
Pop-Up CameraNo-
Rear flash-LED
software
Operating systemAndroid 14Windows Phone 8.1
SkinMIUI 14-
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 ac802.11 b/g/n
GPSYesYes
BluetoothYes, v 5.40Yes
USB Type-CYes-
Active 4G on both SIM cardsYes-
NFC-No
Infrared-No
USB OTG-No
Headphones-3.5mm
FM-No
Number of SIMs-1
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sensors
Fingerprint sensorYes-
Compass/ Magnetometer-Yes
Proximity sensor-Yes
Accelerometer-Yes
Ambient light sensor-Yes
Gyroscope-No
Barometer-No
Temperature sensor-No
sim 1
SIM Type-Micro-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-No
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