it was a repackaging amazon offers, the watch works perfectly, GPS nothing to say, sounds very fast, taking quite instinctive and very fast hand with the user manual. The ideal material for which is neither geek or ironman. ONE VERY BIG PROBLEM: does not pick cardio. The battery replacement is not donné.impossible whether it comes from the sensor or the watch. So back to the sender, very pissed against amazon that could verify that it works before returning a product on the market !! . Ultra big disappointment on Christmas Eve !!!
