I believe fitness bracelets and fitness gadgets in general will have a real boom in 2013.
The market is already presenting some interesting technology for active people and sportsmen, but also for the ones who would like to become more active and need to lose some wight.
The most interesting gadgets we can find today are bracelets.
These are nice looking pieces of hardware covered usually by black or colored rubber, that you can wear to keep track of all your movements and activity during the day.
Here is a (growing) list of what you can find today: