Never had an Apple Watch, and i use an iPhone 7 which limits me to what WatchOS I can use. It seems like unless I find a brand new series 7 or older, it may be difficult to find a watch that will work for me. Unless I go for a Series 3 which should have no problems pairing with my geriatric iPhone. I won’t need LTE as my phone doesn’t have data. Anything I’m missing?