This app is one of the best app to play 4K Ultra HD Videos in android.

Features:

1. List all the videos present in sdcard and Phone Memory.
2. Adaptive bit rate streaming depending upon the user network speed.
3. Powerful video downloader Which downloads the videos in multiple parallel parts so the videos are downloaded quickly.
4. Inbuilt Private browser to surf the web and Videos.
5. Best app to play your network streams such as M3U8 FLV.

Supported Video Formats:
MP4 Webm 3gp TS M4V etc.