See more imagesRating 5 out of 5 stars with 3 reviews
would recommend to a friend
GABRIELA Posted
Battery last for days and the sensors work better than ever. New sleep tracking and readiness functions where definitely missing and needed extra apps to get - now they are native.
StephenD Posted
I had the Ultra 2 and the Ultra 4 is a game changer. I have to charge every 2 days instead of twice a day.
Samra Posted
Upgraded from the ultra 1, battery life is significantly better.