I went from the aluminum sport 6, to a graphite SS 8 a couple weeks ago. It’s a decent upgrade and the battery life/ quick charging/ slightly larger screen was more than enough to upgrade. I skipped the first version of the Ultra. I went ahead and kept my 6 for sleeping and working out, using my SS for out on the town and work. Apple was only going to give me $120 for my 6, this way I don’t have to change my band from the Milanese or leather to my Nonad workout band every time I goto the gym. Good luck.