Hello.
After having my watch connected to the chest strap via ANT+, the wrist sensor continues blinking. I disable wrist HR from settings, but it still keeps blinking. I’m not sure whether it gives me the heart rate info through wrist sensor or chest strap. (Chest strap shows connected in settings, just replaced the strap battery today) I didn’t have this problem while using my previous device, Vivoactive 3.
Besides, in general use, i turn off the wrist HR from settings, heart rate widget shows no data which is a sign that HR sensor is disabled, however the green light still blinks.
By the way, i really had a hope that Garmin might have improved it's latest HR sensor for interval types of exercises like weight training but i'm just disappointed. It performs even worse than my previous Vivosmart HR in terms of heart rate accuracy in Gym. I know my pulse is around 140+ but my FR 245 shows 90-100 bpm. I just shaved my wrist to let the device read more accurately. But restarting, wiping off, changing wrists (to right) doesn't solve the problem. I really don’t understand how can an Apple Watch 4 beat Garmin in terms of heart rate accuracy ?