I had the pleasure with this band, and I must say the idea is good but unfortunately poorly executed. The band itself does a good job, it is characterized precisely sleep and steps. The notification function for call and message are also good. But why has no Bluetooth connection when the phone less than two meters from one is removed? Clear Minus. And now installed a Bluetooth headset in the band to the gimmick, sounds good but looks can be deceiving. The headset has a lousy call quality, and it just does not hold in the ear no matter what size has the earplugs. Once again a clear negative.