Review on ⌚ SUUNTO 9 GPS Sports Watch - Non-Barometric Model by Shawn Parker

I bought this watch because of the heart rate function but even after visiting the manufacturer site and following all the advice on wearing the watch and warming up etc. the heart rate is still everywhere and mainly monitoring wrist rotation rate. The faster I move my forearm, the higher the heart rate > The most frustrating thing is that even if I take the watch off, the heart rate readings are still on the screen. If I shake the watch in the air, I can get up to 150 beats per minute. So I have no idea what the watch's HR sensor is measuring. Even my cheap $99 fitness tracker knows when I take the watch off my wrist that the body is gone and the tracker shows a blank heart rate screen.