I highly recommend. Personally I have the one without LTE, can store music, podcast & audiobooks and leave the phone home. Apple pay also works for the occasional stop at grocery before going back home. Once you start tracking running, you’ll get addicted to track every other workout, I definitely doubled+ the amount of activity I do just thanks to the gamification aspect.
Strava works, but I just don’t like how much they try to push on you. I just want to track runs and PRs and encourage my friends.