Positive: it's a Fitbit. Fitbit is fun and good, it's just.
Disadvantage: there is no way to start the training mode, neither the bracelet or on the phone. Without the bracelet reggar an activity if it has lasted longer than ten minutes. Some half a lousy and backward. One more thing that is backward with Fitbit in general, is that they only count the total calories, instead of active calories. Can not they just make and send out an update. How hard can it be?