While watching a YouTube video, there are a couple of ways to navigate between videos.
When a video is paused, player controls are displayed over the paused video. When a video is playing, tap the video and player controls will display over the video.
- Next: goes to the next suggested video or to the next video in the current playlist.
- Previous: goes to the previous video watched or to the previous video in the current playlist.
This feature is not yet available for Android.