The Ultra battery lasts a couple or three days. The pulse, EKG, and blood oxygen are first rate. Get a Titanium band (why doesn't Apple sell this?) and use a

The Ultra battery lasts a couple or three days. The pulse, EKG, and blood oxygen are first rate. Get a Titanium band (why doesn't Apple sell this?) and use a square design screen and it's a dress watch: https://www.amazon.com/dp/B091H8D561 https://www.amazon.com/dp/B091H8D561