Question: how much bandwidth does a 4k movie use?
Answer: HD quality video is between 720p and 2K (remember, the app adjusts the stream). HD-quality video uses about 0.9GB (720p), 1.5GB (1080p) and 3GB (2K) per hour. UHD quality video uses a lot of data. A 4K stream uses about 7.2GB per hour.