When you buy a product as a Fitbit, you do not buy a product purely technical. If that were the case, let's be honest, all are equal and all are also technically advanced (although, one of the competitors and known for its unreliability and its SAV).
Choose a Fitbit, but also choose the services, the dashboard and the quality of the user community.
The HR charge his qualities: his precise sensors (including heart rate), automatic sleep mode, a really nice port, the ability to adjust the display to the button or tapping ... But also its shortcomings: a self a little short, no smart alarm clock.
What makes the difference? Simply that the Fitbit team decided to tune in, it is possible to request and vote for new features that are made available over the updates, an open community and sharing. It really comes from the simple technical tool that leaves you alone with your performance ... and that changes everything!