While your phone has all the hardware and software technically required to be compatible, until Fitbit certifies it there is no way of knowing whether it will work or not until you try it. Do you know anyone else with a Fitbit that you could test the phone with? If so, download and install the Fitbit app and then let your friend log into their account on your phone and see if they can sync their tracker using your phone. It will not harm their account and you can uninstall the app after you have tested it. That is really the only way until the phone is popular enough where it gets certified by Fitbit.
