Orange Line - What is it?

All of a sudden last night an orange line appeared on my graph. It was 0 all night and then quickly jumped to 10. Anyone know what this feature is?

That’s a new feature - we’ve started measuring your light conditions throughout the night.

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Very cool. Makes sense!

What sensor is used to measure the light. The rear camera or the front camera usually user for taking selfie images.
When placing the phone next to bed should it be face up or face down?

We use ambient light sensor, which is placed on the screen side of the phone (it is used for making the screen blank and not sensitive to any touch when you talk and put the phone to your ear). So for light awake estimation, you should go for face up position :slight_smile: