Stoked that apple started selling these...was just a matter of time I guess. It's works great to keep you going and pretty much just a sweet motivational too for anyone active lifel. Syncs completely fine with my iPhone 5 and nike fuelband app.
Honestly, i didn't think it do much, i was wrong. It does motivate you to earn more and more fuel for the band, making you move and become more active throughout the day!! it's simple enough! if you got the money and the energy to keep up, go for it!
Having the band is very helpful. It is the better but over the jawbone up and the fit bit flex. I use this for a watch for school and a fitness tracker for tennis. The calories Isn't the most precise part about it. The battery life isn't the greatest compared to its competition, but I think it lasted 3-4 days. The app for iOS is very good and nicely designed.
To make this a better product I would do three things
1. Make it lighter
2. Increase the battery life
3. Make an android app