JOperation Mio Fuse the past 1 month, having had a heart attack I wanted to resume my sports activities by monitoring heart rate and it has done its job, the dalertes threshold are easy to adjust and reliably alert you by vibration and light color, more connected to my Android smartphone and Endomondo I can have the route of my cardio throughout the workout. attention only to place the watch a little high on the forearm tightened and any detachment brings up even small measurement errors lai I especially noticed on with dry sticks with wrist movements if they put a little low. I've also had a smartphone connection problem being a side of another possessor I Fuse in gym but this remains to reconfirm In short good reliable products i checked measurement, beautiful, of use a bit confusing but sy made for steps and calories I do not therefore serve men ????