1. The tracker is directly on you 2. They only make claims they can back up They want to make sure they can prove their claims, so they don’t try to deduce or diagnose from the data they collect.Hmm, interesting because I've repeatedly had people tell me that data is interesting but only for a week before people get bored. What is key is making the data "actionable" or providing "suggestions" / expert recommendations.
It may related to casual versus serious user audiences: http://www.graphpaper.com/2010/03-07_for-sale-fitbit-like-new
