Youtube has updated is watched video history, the red color bar will appear under the video its shows watched time of video, but some people don’t like anyone see their watched history for whatever reason they have; here is the solution, you can easily remove and stop watched video history from youtube videos, just follow these easy steps.
1. Open youtube in your phone tap on “three dots” tap on “setting” than “privacy”
2. Now tap on “Clear watch history” than “ok”, tap on “clear search history” and “ok” turn on watch and search history to pause.