POP Player is a free video player. It is a professional media player. And it supports all video formats: MP4, MKV, FLV, AVI, VOB, WMV, WEBM, M4V, TS, RM, MOV etc. POP Player supports 4K, HD, Ultra HD/UHD videos. I believe POP Player will be one of the best mobile video player for Android phones and the best choice for watching videos on your tablet.