Low sound quality, frequent missed calls/reminders because you just dont hear them.
Poorly positioned microphone makes voice call clarity very bad. Annoying for people you speak to.
Sim card holder is cheap& loose, so u need to get it fixed as the sim card falls out of its socket rendering the phone unreachable.
No built-in "smart stay" or "smart screen" makes the screen go off while reading newspapers or watching a video for instance. Annoying. Google apps trying to solve this do not work properly.
