Actually, a heart rate monitor would have passed without the necessary chest. That the SmartWatch should offer much more, all right. Pleasing shape and yet reasonable price was the decisive factor. Fast Delivery. Unfortunately, she does after switching nothing without a Connect to Gear Fit Manager. And there lies the problem. There is neither the app for iPhone even for Acer. Even in retrospect, I find no evidence. Only in the questions / answers I found something now. Check first before buying, whether you own a compatible device. For me worthless ... and back.