I love wearables. It is a pain in the neck to take a measurement. Anything that can be worn and sense automatically is awesome. I studious update an SQLite database of my Fitbit data. I just wish I had more measurements to track!
You could probably (depending on how much of the information you want is retrievable easily via fitbit's api) write a basic app that restructures that data and syncs daily to your database without having to studiously (=manually?) do it.
