This compact update of the popular FitBit monitors everything from stairs climbed to quality of sleep, and syncs with a smartphone app to make it easy to keep track of progress.
Nike Flyknit Racer
Even novice runners will appreciate this feather-light running sneaker with heavyweight good looks. Its adaptive fit means it feels more like a sock than a shoe.
The Grid Foam Roller
This sturdy but light roller can be used for a wicked core workout — and for a targeted massage afterward.