Cost: $50 to $149
Where to buy: The trackers are available on Amazon.com. Best Buy also sells some models, including Jawbone Up and Fitbit Force.
These devices measure sleep patterns, mood, calorie intake, and progress toward exercise goals. The devices aren’t for everyone as some are meant to be worn around the clock and require users to manually input data. But for the fitness buff in your life, this should do the trick.
The trackers on the market include Fitbit Force, Fitbug Orb, Jawbone Up, and Nike FuelBand. You can read more about them here.