I have been using alta for about 6months now.honestly I use it more like a watch than a fitness tracker and so will you after a certain point of time if you are planning to buy this.fitbit is just for show and it is true to its core. Though it allows you to check messages without taking out your phone, its only half of the message if its long and for calls, you have to however take out your phone even if you choose to disconnect the call. So basically spending 8000 isn’t worth for such a device. Incase you are pretty much fascinated try other brands as in MI. It offers same features infact more features in one-third of its cost.