If you are interested in a fitness tracking solution, one of our employees has reported good results with the Fitbit Flex (www.fitbit.com/flex).  It comes as a module that inserts into a wristband.  It tracks steps and sleep activity.  Battery life is about 5 days.  It uses low-energy Bluetooth to sync with your portable devices, and comes with a USB dongle to sync with software on your laptop.  The online portal has lots of options to input additional data like workout activity, diet/calories, and weight.