This comparison isn’t going to be precisely fair, since I’ve been using my fitbit for about 10 months, and I only used Sleep Cycle (an iPhone app) for one night. But I can definitely give some initial impressions.

I’ve already talked about how useful I find the information from my fitbit. Here’s the data from last night, and no, I’m not sure what I was doing up at 2:41; I was on Ambien and it seemed like a good idea at the time:

Here is that same night, from Sleep Cycle:

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