Can’t set sd card as internal memory.
Can’t set sd card as default storage for data, media or apps.
No compass.( gyroscope far more ! )
Continuous front flash. ( new technology ! )
No ambient light sensor. ( you cant see anything in outdoor if you forget to click outdoor)
Single 4g standby.
Internal storage become full after few games or apps. ( if you change storage only a little part of the app is transfered to sd card)
Cant set default path to sd card for apps.