The difference is $200. Personally, I'd get the 1TB model.I keep flip flopping between 512GB and 1TB. On one hand, if I want to have all my photos stored locally (like my other devices) I have a lot more wiggle room with 1TB, but if I ”optimize photos“ I could get away with 512GB. I have an order in for the 512GB for delivery on 2/2 and an in-store pickup for the 1TB on 2/3. Help!! 😂