Personal Fitness Devices

With the explosion of personal fitness devices, comes the Basis Band. The gadget is the first continuous health tracker to measure heart rate from the wrist using an LED light. The system works by using our blood’s reflectivity of green LED light. The watch-like device also includes a three-axis accelerometer, electrodes to measure galvanic skin response and heat sensors to track temperature. 
BodyMedia will soon be rolling out a new waterproof, disposable health-monitoring patch. When released, the new patch will be capable of detecting motion, sweat, temperature and rate of heat flowing off the body.
Scanadu, a health tech startup is also developing a portable monitoring device to sense vital signs sans contact. The Tricorder will be able to record chest motions and face-color fluctuations with a built-in camera.
(Source: Popular Science)

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