In my experience, Apple Watches will cover most running needs without needing to upgrade. I ran my first half marathon race with last month with a year old Ser

In my experience, Apple Watches will cover most running needs without needing to upgrade. I ran my first half marathon race with last month with a year old Series 4. I was running the Workout app in "Outdoor Run" mode, and playing (synced) music with the Music app to Bluetooth headphones. I did the run in the morning and made it through the whole day without taking it off. Around 9pm I got a warning I only had 10% power left. It kind of blew my mind. Here is a device tracking my route with GPS, taking my heartrate, and playing wireless music to me, for just under 3 hours, and it feels about as big as a chunky Casio watch I had when I was a kid in the 80s.