Loving the watch as well. I have the LTE version. As far as Fitness goes I use the Endomondo app because it can sync up and I can view the details on my phone when needed. Didn't even put on the silicone strap I already had a leather one waitingYep its an even better watch once you find the right strap, watch face and apps that you like/need. If you are into your fitness tracking look no further than the Gear Tracker app in the Galaxy Store.