Has fulfilled my expectations

If an Activity Tracker you can buy that has a battery life of one year, one must also be aware that this can not perform complex analyzes of the sensor data. And whether I'm at the end of the day have 200-400 "wrong" steps on the display is completely negligible in my view. It's just a device to map trends and to motivate them to be more active. And this makes the Vivofit errors. Especially the weekly challenges motivate immensely.

The Vivofit work together not only with the Garmin ANT + heart rate monitor, but also with the tickr of Wahoo.
This also does not step-based activities can be recorded with any accuracy, since Garmin Connect takes the heart rate data as a basis for the calculation for the synchronization.

Integration with MyFitnessPal and Strava works very reliable and almost without time delay.
So steps, cycling and other activities that I either aufzeichne with Garmin devices or Strava be considered and displayed in MyFitnessPal.

I have not had the problem that my bracelet triggers too easy, but Garmin has responded to the problems here apparently. I had just an email in the mailbox with a link where I can order a free circlip (vívokeeper). The delivery will take 4-6 weeks.

The only minor complaint that sometimes bumpy synchronization via Bluetooth is mentioned. But here I can not judge whether this is due to my phone, the app or the Vivofit. Exit the app and short Disabling Bluetooth but always effective.

All in all I'm very happy with the Vivofit.

Addendum of 05/13/2015: The vívokeeper the Vivofit holds really safe on your wrist. The mentioned synchronization problems are now solved.