Vizio M Series or Samsung 6300 4K Tv?

[zod96]

So I have narrowed down my choices to the Vizio M series 50 inch or the Samsung 6300 50 inch. Vizio is about $585 and the Samsung is now back up to about $500. This TV would be for my bedroom and it would be to play Xbox ones games and stream stuff like netflix and amazon prime. I know the Vizio at the time of release did not have amazon prime on it, but does it now?

EDIT: Just noticed Dell has the Vizio for $599 and a $200 gift card Thanks