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UrMomReadsHN | 11 years ago

How does the sleep phase sensor work? I'm assuming it can't read brainwaves...

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maghis|11 years ago

We use ballistocardiography (aka a big less sensitive microphone) to pick up movements, breathing and heart rate through the bed sheets.

UrMomReadsHN|11 years ago

Interesting. Has this been compared to EEG for accuracy? I can't imagine it to be very accurate. I'm really curious because as far as I understand anything that isn't EEG is pretty much useless.

agotterer|11 years ago

Are the sound waves sent to the cloud for processing?