Got recommended by a friend the Loop. Great Thing. Very interesting how many steps you actually go on the day - especially if you 2x a day goes walkies. Sleep stages are also interesting. Calorienverbrauch. All good. I'm going to only buy the Heart Rate Monitor to. Then you go back to the perquisites. Matching App - great overview. Simple login. Everything was great in everything !! Have this purchase regretted by no means!