When we design rich feature articles where YouTube and Vimeo falls short, it's crucial to serve users high quality video that loads as fast as possible on the users device.
Using the MUX plugin, editors uploads videos in the Sanity Studio without ever relating directly to MUX. Video are uploaded in the background to MUX, which creates videos of different size that we pick based on the device type and screen size for optimal results, just like we do with responsive images.
For further reading on what Sanity can do, here are the top 10 reasons we love Sanity.