Yeah I had a series 7 and the battery life killed it for me. I do kind of like seeing sleep tracking data so I don't want to charge while I'm asleep, so I woul

Yeah I had a series 7 and the battery life killed it for me. I do kind of like seeing sleep tracking data so I don't want to charge while I'm asleep, so I would basically need to charge it while in the shower. This wasn't always enough charge time. It really introduced me to a new level of battery anxiety. I'm extremely satisfied with my garmin which lasts a week+ per charge.