2.Download YouTube videos on web browser on Your Android device
Pros: You can directly download the YouTube videos on your Android device without any other things.
Cons: The downloaded YouTube video on the website may be not compatible with your Android device, and you may need to convert the video before watching it.
At the moment, the top YouTube download website includes: KeepVid, Zamzar, SaveYouTube, KeepTube.
Open your Android web browser, and go to YouTube website.
Search for and tap the video you want to download, choose Browser from the options that the mobile device will prompt you.
Copy the video URL by tapping “Menu” + “Go to URL”
Go to a website like http://www.keepvid.com
Paste this YouTube address on the Search Box and hit Enter
Tap “›› Download ‹‹ (video.mp4 – High Quality)”. Then it will download the videos in a new window. After it, just find the video in your browser history.
3.Download YouTube videos on Your Android phone or Tablet with Android apps
Pros: You can directly download the YouTube videos on your Android device, and it can supports more video formats and resolutions than the YouTube downloading website.
Cons:You need to install one app on Your Android device, which may slow your Android device’s speed.
For Android app, I would like to suggest TubeMate for you, which has ever been the best free app before Google removed it. It not only lets you download YouTube videos in variety of video formats and resolutions or as MP3 files, but also it can be a full media player for your Android phone.