I'm finding the heart rate shown on the scanwatch swings wildly - within a few minutes of pottering round indoors it will show 58, 160, and 80. Taking my pulse manually at the same time its around 85. Not much use if I have to keep checking my pulse myself. Also I see the ECG will only work if the heart rate is below 100 - the time I would want to run an ECG is if my heart seems very fast, so again not much use. Only just bought this and so disappointed. Might have to try an Apple watch. Comments from other users would be helpful, thanks.