Microsoft Lumia 640 vs Nokia X Dual SIM comparison

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Compare Microsoft Lumia 640
Compare Nokia X Dual SIM
key specs
Display5.00-inch4.00-inch
ProcessorQualcomm Snapdragon 400Qualcomm Snapdragon S4 Play
Front Camera0.9-megapixelNo
Rear Camera8-megapixel3-megapixel
RAM1GB512MB
Storage8GB4GB
Battery Capacity2500mAh1500mAh
OSWindows Phone 8.1Nokia X platform 1.0
Resolution720x1280 pixels480x800 pixels
general
BrandMicrosoftNokia
ModelLumia 640X Dual SIM
Release dateFebruary 1, 2015February 1, 2014
Form factorTouchscreen-
Dimensions (mm)141.30 x 72.20 x 8.80115.50 x 63.00 x 10.40
Weight (g)145.00128.70
Battery capacity (mAh)25001500
Removable batteryYesYes
Colours-White, Black, Red, Green, Blue, Yellow
display
Screen size (inches)5.004.00
TouchscreenYesYes
Resolution720x1280 pixels480x800 pixels
Pixels per inch (PPI)294233
hardware
Processor1.2GHz quad-core1GHz dual-core
Processor makeQualcomm Snapdragon 400Qualcomm Snapdragon S4 Play
RAM1GB512MB
Internal storage8GB4GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)12832
camera
Rear camera8-megapixel3-megapixel
Rear flashLEDNo
Front camera0.9-megapixelNo
software
Operating systemWindows Phone 8.1Nokia X platform 1.0
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 b/g/n802.11 b/g/n
GPSYesYes
BluetoothYesYes, v 3.00
NFCNoNo
InfraredNoNo
USB OTGNoNo
Headphones3.5mm3.5mm
FMNoYes
Number of SIMs12
Wi-Fi DirectNoNo
Mobile High-Definition Link (MHL)NoNo
sim 1
SIM TypeMicro-SIMMicro-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTENoNo
sensors
Compass/ MagnetometerYesNo
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeNoNo
BarometerNoNo
Temperature sensorNoNo
ratings
Overall NDTV Rating-Read Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
sim 2
SIM Type-Micro-SIM
GSM/CDMA-GSM
3G-No
4G/ LTE-No
Compare Microsoft Lumia 640
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