Meet the UP3 by Jawbone: an advanced fitness tracker with a multi-sensor design. It features a tri-axis accelerometer, bioimpedance sensors, and skin and ambient temperature sensors. You can use it to track your sleep as well. The device automatically identifies workouts. The UP3 connects to your phone and lets you use its app for personalized guidance.
UP3 by Jawbone is slim and stylish. It is water resistant up to 10 meters. The battery life lasts up to a week. This wearable weighs only 29g. Sets you back $179.99.