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Poco C81x vs Nokia Lumia 521 comparison

 Compare Poco C81x
Poco C81x
Compare Nokia Lumia 521
Nokia Lumia 521
key specs
Display6.88-inch4.00-inch
ProcessorUnisoc T72501GHz dual-core
Front Camera8-megapixelNo
Rear Camera13-megapixel5-megapixel
RAM3GB512MB
Storage64GB8GB
Battery Capacity5200mAh1430mAh
OSAndroid 15Windows Phone 8
Resolution720x1640 pixels480x800 pixels
general
BrandPocoNokia
ModelC81xLumia 521
Release dateApril 23, 2026February 1, 2013
AI EnabledYes-
Launched in IndiaYes-
Form factorTouchscreen-
Dimensions (mm)171.79 x 77.80 x 8.26124.00 x 64.00 x 9.90
Weight (g)193.00124.00
IP ratingIP52-
Battery capacity (mAh)52001430
Removable batteryNoYes
Fast charging15W Fast Charging-
Wireless chargingNo-
ColoursElite Black, Ice Blue-
display
Refresh Rate120 Hz-
Resolution StandardHD+-
Screen size (inches)6.884.00
TouchscreenYesYes
Resolution720x1640 pixels480x800 pixels
Pixels per inch (PPI)-235
hardware
Processor1.8GHz MHz octa-core1GHz dual-core
Processor makeUnisoc T7250-
RAM3GB512MB
Internal storage64GB8GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)204864
camera
Rear camera13-megapixel5-megapixel
No. of Rear Cameras1-
Rear autofocusYes-
Rear flashYesNo
Front camera8-megapixelNo
No. of Front Cameras1-
Pop-Up CameraNo-
software
Operating systemAndroid 15Windows Phone 8
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYes, v 5.20Yes, v 3.00
USB Type-CYes-
Headphones3.5mmYes
Number of SIMs21
Active 4G on both SIM cardsYes-
Wi-Fi standards supported-802.11 b/g/n
NFC-No
Infrared-No
USB OTG-No
FM-Yes
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMMicro-SIM
GSM/CDMAGSM + CDMAGSM
4G/ LTEYesNo
5GYes-
3G-Yes
sim 2
SIM TypeNano-SIM-
GSM/CDMAGSM + CDMA-
4G/ LTEYes-
5GYes-
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYesNo
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
Gyroscope-No
Barometer-No
Temperature sensor-No
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