The iPhone 4, released in 2010, becomes the most popular smartphone in the world because of its new features and stunning touch screen, which allows iPhone 4S to display high definition movies, TV shows and videos up to 720p quality. Here comes the question, how can we watch HD YouTube videos on an iPhone 4?
Method 1: View HD YouTube video on iPhone 4S online
To begin with, touch or tap the "YouTube" icon from the main screen of your iPhone 4. Touching it will direct you to YouTube's main page. If not, you can visit http://m.youtube.com in Safari and type "HQ" to find the new YouTube app, add the icon to main screen.
The find the "Search" button and type in keywords to get the video you want. In the "Search Results" page, highlight the icon labeled "Video" of a YouTube result that may work for you search query. Finally, begin the quick play options by tapping the "Play" icon for the selected video.
You can see clear the "HQ" button on the YouTube video, that means the YouTube video is shown on your iPhone 4 in high quality.
Method 2: View HD YouTube video on iPhone 4S with iTunes
First you need to download the YouTube video to your computer, just remember to choose MP4 video format and 720p quality (if the original quality is lower, then choose the highest) and then click "Download" button to get YouTube video for free.
Then import the MP4 video to your iPhone 4 using iTunes, "Library" > "Add to Library" command. Then connect your iPhone to your computer and add your videos by dragging them from the "Movies" column to the icon for your phone beneath "Devices."
Then you can touch and watch the YouTube video on your iPhone 4 freely.
