I bought the lot on the .com site, it could not wait until it officially gave him here in D. The predecessor Force unfortunately had a display damage and so had to quickly substitute ago. I have tested many other tracker, but the batch convinced me in every way, it is even more beautiful than the processed Force. The clasp keeps really and does not go on, showers comes loose, battery life with 6 days perfectly acceptable. The FitbitApp constructed great and needs to Sync an Internet connection (if you are curious times go). Absolute buy recommendation for people looking for a tracker that really works.