I would say just wait for 6 days within that you will get it Any promotion offer they provide.. I have seen the delivery time is longer but it doesn't take that much time in reality
Yes I love S8 plus it's the best device so far and love the iris scanner too much Yes if it gets rubbed on sand it wil have some signs for sure as they are very sharp for a glass panel for sure I haven't got nay nor tried thoI don't use any case but ...