The unit itself was OK. I deliberately say "was" because I lost the clip unfortunately after two weeks. The fastening on the waistband just was not strong enough, so I've lost the tracker while cycling and when I saw it a short time later, no longer recovered. To use the Vifit as sleeping Tracker. you had to him also wear at night. He has also been dropped a few times. When you synchronize the data, there were often problems. Overall, I can not recommend the Tracker why and will also not buy me new.
