counts steps. Yes that makes it. However, far too much. I wondered why I had about 800 Steps 15 minutes after waking up. The stairs up and down, to the bathroom to the kitchen and then 800 steps? No certainly not. Not even half. The part has a 3D acceleration sensor and measures every movement of the hand: dressing, washing, brushing, blow-dry your hair, make coffee, etc. - makes then quickly once the 800 Steps. Locker to get so on the 10,000 / 12,000 / 15,000 Steps a day, which should, according to Polar app greatly improve my health / fitness. I do not believe that. And the specified steps counted or not agree KM far. Perhaps at approximately divided by two. What is Polar only thinks? Then still the only customizable by cutting Band: OK is made quickly. However, there is only 1 small adjustment. In the watch industry, there are many examples such as bracelets with folding clasp can be adjustable. Annoying - use for other people is made more difficult or impossible. For a modern tech product that bothers me the language only in English and the bad "tamagochi" display. Each entry mobile to add 30 euros is multilingual and has a better display. A disappointing product.