Christopher Nolan’s epic Tenet is available on Amazon’s Prime Video, but the streaming service does not currently offer the movie in Digital 4k UHD (as of this article publish date). To see Tenet in 4k you have to either buy the 4k Ultra HD Blu-ray or purchase in Digital 4k from another service such as Apple TV. You also need a 4k TV (and 4k Ultra HD Blu-ray player if using a 4k Blu-ray Disc). To enjoy Dolby Vision you need a TV that supports Dolby Vision HDR. Tenet may also be offered in 4k UHD On Demand through your TV service provider.
Buy Tenet in Digital HD on Amazon.