Product complies with promises for bargain prices. Convenient and easy to use, when you have followed the setup instructions in English ..... 3 weeks for delivery, certainly, but the seller told me very kindly, by email, the next day, making that in spite of this small problem, I assigned 5 stars. I recommend this watch, which also goes to the very small wrists: Run, move, measure your heartbeat and see the fruits of your efforts by displaying the number of burned caories!