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Green sensors and heat Apple Watch 12

is it normal that the green sensors on apple watch 12 are literally always on? it doesnt stop even for a second . I have continuous heart rate on but the sensor is literally never off.

besides that my watch keeps heating . Not overheating just noticeably heating from time to time

2 replies

Under what circumstances do you imagine the sensor would turn off if you have continuous heart rate turned on?

It says it counts every 5 secs . Does it not ever turn off?