Sorry to spam you guys again! I'm simply wondering which of the two would be a better choice: AT&T or US unlocked model. What are benefits to each model, and which would you choose?
Unlocked has obvious advantage of being able to more easily move between carriers, AT&T will get updates sooner and probably longer.
Would there possibly be a difference in the battery life?
Other than if they have different processors there shouldn't be much of a difference. Some of the sites are saying that the Snapdragon version is a Little Bit Stronger.
Both are fine.
https://m.androidcentral.com/carrier-or-unlocked-which-galaxy-s8-should-you-buy
Maybe give this a glance