Super Polar product. Very well made, it is well finished and with good quality materials. The bracelet is adjusted perfectly, even for small wrists. Simple to use, it is waterproof (20m), so nothing to fear for daily outings and swimming pool. It is a very good way of motivation for wanting to know if it is sufficiently active and enables a restart after a little too long gone. I recommend it especially for sedentary or casual sports (in this case take the Polar H7 belt) but for whom a practice or sports 4-5 times a week, it will not bring much, except a few pretty cool gadget.