I have a LG G3 and the head tracking seems to not be fluid enough for the 2k res. The Samsung S5 works fine, note 3, htc one.
I would describe like this. when I turn my head very slow. it is like it stops until i get to another pixel then moves. and has a shuttering feel to it and a very unnatural feeling. is this a lg issue? i know IPS is slower than other panels but seems odd.