What is HD? HD (or High Definition) refers to higher quality video than SD (or Standard Definition). On HD, the picture will be sharper than on SD. On YouTube, HD means a video has 720–1080 lines of …

You can watch purchased 4K UHD-quality videos using the YouTube app on eligible smart TVs and Android TVs, or with a Chromecast Ultra. UHD playback requires a faster Internet connection than …

Change the quality of your video To give you the best viewing experience, YouTube changes the quality of your video stream based on your viewing conditions. These conditions are why you may notice …

To change the video quality of the video you're watching: In the video player, select Settings . Tap Quality . Select your preferred video quality: Auto (recommended): Changes to give you the best …

Watch HD, 4K UHD & HDR videos You can choose the video quality for some movies and TV shows you buy on Google. Most movies and TV shows are available in high definition (HD). HD video …

Change video quality You can manually change the video quality of any video you're watching on a computer, TV, or mobile device.

Watch HD, 4K UHD, HDR & 3D videos Most content on Google TV is available in High Definition (HD) and some content is available in 4K Ultra High Definition (UHD). Content in 4K UHD is sharper and …

Low video quality after upload When you upload a video, it will initially be processed in low quality. This process helps you complete the upload process faster. When the upload flow is complete, your video …

To change video quality while watching on your computer: In the video player, select Settings . Click Quality. Select your preferred video quality.

Below are some browser and operating system combinations that support YouTube's high-quality video formats: Google Chrome (all operating systems) MS Edge Safari on Mac OS X 10.10 or newer …