Amazon has rebranded its ad-free Prime Video tier as Prime Video Ultra, keeping the $4.99 monthly fee but adding key perks like 4K/UHD streaming, Dolby Atmos audio, up to five simultaneous streams, ...

We have been familiar with 1080p/720p for quite some years. While HD has taken a leap with higher resolution up to 4K UHD. From cameras to TVs, game consoles to streaming services, mobiles to desktops ...