I think you are making a good choice. There are some good apps too that will add some motivation as well. Step counters to heart tracking as and app to sleep trackers. Helps to monitor your progress.You've all given me invaluable information. Thank you for that! I think that, given my situation and based of what many of you have reported, the Apple Watch might suffice, as I'm only beginning fitness again and I'm pretty much starting at zero.
Good luck!