This device is many networks GSM LTE etc. This smartphone have 4 inch LCD backlit IPS display with 640×1136 revolution. Yes it’s single sum device.This is it’s limitation.Thiss have better quality camera of 12mp with 2160 pixel revolution which helps to take better quality of pictures. It’s have 2gb Ram and 1634mAh non removeable Li-on battery. Which is almost good for this smartphone.It works on iOS.9.3.2. Which is ungradeable to ios10.3.Its have fingerprint, accelerometer, proximity etc different type sensor.this device price have 28000 in Indian rupees