Food and Entertaining How many devices can I have on my Amazon account? How many devices can I have on my Amazon account? There is no limit on how many devices you can have on your account but there are limits on how many can stream video simultaneously from one account. Amazon Prime limit is two, Netflix, Hulu and HBO limit you to one simultaneous stream per account. Related Posts:How much does it cost to add HBO to Hulu?Which streaming service has HBO Max?Why won't Netflix work on my Amazon Fire TV?Why can't I link my Amazon Prime to my twitch?