I went with a Xiaomi Mi Band 2. My main desire was for sleep tracking and Google Fit integration. It was dirt cheap and it's comfortable to wear while sleeping.

I went with a Xiaomi Mi Band 2. My main desire was for sleep tracking and Google Fit integration. It was dirt cheap and it's comfortable to wear while sleeping. The Xiaomi app integrates with Google Fit. I also have the Xiaomi smart scale, so I have been able to push all my info into Google Fit fairly seamlessly.