Hello. I have an iPhone 11 and an Apple Watch is something I really want, the problem is that I do not understand the difference between GPS and GPS + mobile. Basically, I only want an apple watch to look at alerts (messages and calls) when I have the phone in my pocket or when it is not near me due to doing work on the laptop or games, etc. I think it’s bad to go for the Apple Watch 3 since I do not care so much about heart rate stuff and all that. So what is the best option for me? Thanks!