[dylan604]

Most people have their phone in a pocket or purse or similar while outdoors. Wouldn't this require the phone to be out and exposed to light in order to work correctly? So not only are you trying to get people to change habits of getting outside, you're also requiring they change habits with the devices as well. Good luck with that, and I mean that with more sincerity than snark but not no snark.

[vickipow]

The light sensor is in the Apple Watch display (behind the screen) it's what it uses to adjust the screen brightness. So if it's exposed to the sun it will count it automatically