Fitbit Flex

The latest wearable activity monitor features a low-energy Bluetooth sync and streamlined design

Personal activity monitors are among the most common wearable computers, though their sophistication has advanced significantly since the days of the pager-like pedometer. The best of these devices have migrated from the hip to the wrist and offer highly detailed insight aimed to help people live healthier lives. Whether it’s through gamification with the Nike FuelBand or the rich visuals of the Jawbone UP, the …