One plus 3T 64 GB is the best phone of its class. screen size of the phone is pretty good. there is 5.5 inch full HD display. This phone comes with 6GB ram and 64 GB internal Memory. Network coverage of the device is very good with good processor. there is 16 MP back and 16 MP front camera. both of the camera clicks very high quality pictures. customer services are also good and available 24x7. This phone has a 3400 Mah big battery which gives you a long time battery backup. Talking about charges and billing, price of the phone is almost 30, 000 rupees. its not so high when compared with its features.