If the dad in your life is into fitness, he'll love Fitbit's newest accessory. The Fitbit Flex is a wristband that tracks your daily activity and sleep pattern and features a minimalist, comfortable design. He can customize what he wants to track, such as weight, body fat percentage and food and water consumption.
Fitbit offers an extensive API that lets third-party developers integrate their apps, so he can sync his info from such popular apps as Lose It! and Map My Run.
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