Xfinity Mobile customers will soon see a change to their video streams. In the coming weeks, videos streamed using cellular data will be limited to 480p resolution, a move that other carriers including T-Mobile, Verizon and Sprint have implemented for certain plans in the past. Videos streamed over WiFi won't be affected by the change and Comcast says that it will offer the option to stream 720p video over cellular data for an added fee later this year. Until that plan becomes available, customers who would like to continue streaming video at 720p will be able to do so for no charge, they'll just have to call the carrier in order to set that up. Additionally, users with an unlimited plan will see their hotspot speeds capped at 600 Kbps.