Yahoo TechReview: The Up3 Fitness Tracker Is Too Little, Too LateYahoo TechThe fitness tracking band is a peppy overseer of exercise, sleep, diet, and, in this latest model, resting heart rate. While I was busy living life, it became my physical conscience, connecting the dots of my behavioral patterns through its addictive ...Jawbone UP3 Worth the Buy or NotTech News Todaytất cả 2 bài viết »