The red HD ribbon on each card means the title is available to watch now in high definition on at least one service. Most recent titles also carry full HD, and the large Hollywood and Indian releases carry 4K on the services that offer it.
Data by setting
An hour of standard quality uses about 0.7 GB, an hour of HD about 1.5 GB to 3 GB, and an hour of 4K about 7 GB. On mobile data, choose the data saver setting in the service's app and a two-hour film uses well under a gigabyte.
Getting the best picture
Use the service's own television app for the sharpest picture on a large screen, and a wired or strong Wi-Fi connection for 4K.