Celkon Win 400 ($ 52)

Specifications:

GENERALRelease dateNov-14
Form factorTouchscreen
Dimensions (mm)125.40 x 65.00 x 10.30
Weight (g)121
Battery capacity (mAh)1500
Removable batteryYes
DISPLAYScreen size (inches)4
TouchscreenYes
Resolution480x800 pixels
HARDWAREProcessor1.3GHz quad-core
Processor makeQualcomm Snapdragon 200 MSM8212
RAM512MB
Internal storage4GB
Expandable storageYes
Expandable storage typemicroSD
Expandable storage up to (GB)32
CAMERARear camera5-megapixel
Rear FlashLED
Front camera1.3-megapixel
SOFTWAREOperating SystemWindows Phone 8.1
CONNECTIVITYWi-FiYes
GPSYes
BluetoothYes
NFCNo
InfraredNo
USB OTGNo
Headphones3.5mm
FMYes
Number of SIMs2
SIM 1SIM TypeRegular
GSM/CDMAGSM
3GYes
4G/ LTENo
SIM 2SIM TypeRegular
GSM/CDMAGSM
3GNo
4G/ LTENo
SENSORSCompass/ MagnetometerNo
Proximity sensorYes
AccelerometerYes
Ambient light sensorYes
GyroscopeYes
BarometerNo