Nokia Lumia 638 vs Karbonn K777* comparison

Compare Nokia Lumia 638
Compare Karbonn K777*
key specs
Display4.50-inch2.80-inch
ProcessorQualcomm Snapdragon 400one-core
Front CameraNoNo
Rear Camera5-megapixel1.3-megapixel
RAM1GB-
Storage8GB128MB
Battery Capacity1830mAh1200mAh
OSWindows Phone 8.1-
Resolution480x854 pixels240x320 pixels
general
BrandNokiaKarbonn
ModelLumia 638K777*
Release dateJune 1, 2014December 1, 2012
Form factorTouchscreen-
Dimensions (mm)129.50 x 66.70 x 9.20122.00 x 51.50 x 12.40
Battery capacity (mAh)18301200
Removable batteryNoYes
ColoursOrange, Black, Yellow, White-
Weight (g)-110.00
display
Screen size (inches)4.502.80
TouchscreenYesYes
Resolution480x854 pixels240x320 pixels
hardware
Processor1.2GHz quad-coreone-core
Processor makeQualcomm Snapdragon 400-
RAM1GB-
Internal storage8GB128MB
Expandable storageYesYes
Expandable storage up to (GB)1284
Expandable storage type-microSD
camera
Rear camera5-megapixel1.3-megapixel
Rear flashNoNo
Front cameraNoNo
software
Operating systemWindows Phone 8.1-
connectivity
Wi-FiYesNo
Wi-Fi standards supported802.11 b/g/n-
GPSYesNo
BluetoothYesYes
NFCNoNo
InfraredNoNo
USB OTGNoNo
Headphones3.5mm-
FMNoNo
Number of SIMs12
Wi-Fi DirectNoNo
Mobile High-Definition Link (MHL)NoNo
sim 1
GSM/CDMAGSMGSM
3GYesNo
4G/ LTEYesNo
SIM Type-Regular
sensors
Compass/ MagnetometerNoNo
Proximity sensorNoNo
AccelerometerNoNo
Ambient light sensorNoNo
GyroscopeNoNo
BarometerNoNo
Temperature sensorNoNo
sim 2
SIM Type-Regular
GSM/CDMA-GSM
3G-No
4G/ LTE-No

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