It may be a cliché, but there's a reason people vow to get in shape after the excesses of the holidays. Armed with these tools, they might actually stick with it past January.
FitBit One
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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.
We live in a tech-obsessed world, but these new offerings get entertainment out of the living room - and dress up the phones and tablets they already love.