Take a first look at the Misfit Ray Fitness and Sleep Monitor. The Misfit Ray measures 12mm in diameter and 38mm long. It tracks activity and sleep with a 3-axis accelerometer and uses a vibration motor for nuanced user feedback. Combined with a single multicolor LED eye, Ray provides inactivity nudges, text and call notifications, and a silent alarm. The battery lasts up to 6 months and it is water resistant to 50 meters.
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