CM Player ! supports many format files - mp4 mkv hevc etc in 4k-8k best video.
CM Player is a perfect video player with all the functionality of video to control over without any lags.

File Sharing (any types of files) over wifi hotspot and to use this feature
we recommend you to give permissions for the same when it is asked
Send Any types of files Now without internet.
Multiple audio support finger gesture to seek and volume up down.

Supports Picture-in-Picture mode.

Playback Speed.

Supports multiple subtitles.

Change volume from finger control.

Change brightness from finger control.

Change themes of the app.

Change the position of the video from finger control i.e seek the position by left right gesture.

Resize Mode : Resize video in any modes like zoom fit fill crop etc forcefully.

Lock Unlock the screen with one tap when watching the movies.

And many many more features are in this app just install and take advantage.