Very good looking watch, that is why I chose it. Battery life was less than a day. Could never find the oxygen reading. Every time a looked at the face it changes to a different face. Had to use a 3rd party app to get other faces. 3rd party app want to me have a subscription. Fossel should spend more time on there phone app. Iphone app has very few features, app also has ads in it. I walk 3 miles every morning, the exercise app kept wanting to close before I finished my walk. Battery would not last long enough for sleep app to finish.