I had a Fossil Gen 6 and had to wait a year for the google 3 update then the battery became useless. I upgraded to the GardPro Ultra 3 which was a very good watch, reliable but slightly heavy, did everything I wanted. Then my friend got me the Health 4, a lighter, smaller profile but with all the features I was liking in the U3 and more - like the blood pressure reading and HRV. The workout functions keep me on the ball and the watch doesn't get in the way.