I was searching for Withings in the comments, and this is the only occurence. I also played with various fitness and smartwatches, but the only one I really like and stick with is Withings Steel HR.

Battery lasts a month, it's water resistant, shows me notifications, tracks steps and sleep and looks good at the same time! Also costs less than a "real" smartwatch. What a bargain to me. If only it had NFC payments it would be perfect.