I’ve had a 10 since shortly after it came out because yeah my 7 died during a marathon. That is frustrating since you know apple has the same ability to make a good battery as Garmin or coros. I just can’t give up the integration with my phone/airpods/cell plan. Same as
@marty3d I have cell plan and can opt to leave the phone at home. My 10 can do a full no problem for now and will go two days if I’m doing short runs or strength workouts. I may look to the ultra next time. If it ever becomes a problem again I’d probably go with the cheapest coros I could find just for races and keep apple as my everything else watch.