The Fitbit One wireless activity plus sleep tracker is a high-performance fitness monitor, auto-tuned to track your sleeping habits, distance walked, steps climbed, calories burned, and workout activities. The device comes with a silent alarm, and an OLED display screen, and is compatible with computers and smartphones. Bluetooth 4.0 ensures a seamless transfer of data to an external device.
Pros
Very accurate
Quick setup
Long-lasting
Bluetooth 4.0
Cons
No alarm
Not suitable for kids
