When does the data start recording?

published by webslog on Tue, 01/17/2012 - 10:43

Language English

So I put on my headband last night and read for about about 45 mins before I went to sleep. I'm pretty sure I hadn't connected via BT to my iPhone (the BT icon was not lit). However, my sleep data shows that I was awake for about an hour before falling asleep, and I fell asleep almost immediately after I stopped reading and turned off the light. Does the headband gather data prior to the BT connection.