https://arstechnica.com/information-technology/2017/08/verizon-to-start-throttling-all-smartphone-videos-to-480p-or-720p/

Verizon Wireless will start throttling video streams to resolutions as low as 480p on smartphones this week. Most data plans will get 720p video on smartphones, but customers won't have any option to completely un-throttle video.

1080p will be the highest resolution provided on tablets, effectively ruling out 4K video on Verizon's mobile network. Anything identified as a video will not be given more than 10Mbps worth of bandwidth. This limit will affect mobile hotspot usage as well.