Buying and downloading movies from Amazon is a straightforward process, but there are specific rules regarding you can watch them and how long they stay on your device. Can You Buy and Download?

Fire tablets, iOS (iPhone/iPad), and Android devices.

When you purchase a movie on Amazon (distinct from streaming it for "free" with a Prime membership), it is yours to keep in your digital library. You can download purchased titles to watch offline, but they must be viewed through the Prime Video app due to digital rights management (DRM). How to Buy and Download

Use the Amazon website or the Prime Video app to find a movie and select "Buy." Once purchased, it will appear in your "Purchases & Rentals" or "My Stuff" library. Compatible Devices: Downloads are supported on:

Tap the (usually a downward arrow) on the title's detail page. Key Restrictions & Rules Amazon Prime Video Usage Rules