Spree is a single device that measures your temperature, tracks your movement, and monitors your heart rate. The device then streams the information collected to an app you can use to help you enhance your body’s performance.

Spree is a single device that measures your temperature, tracks your movement, and monitors your heart rate. The device then streams the information collected to an app you can use to help you enhance your body’s performance.
Amazon Halo – a new service dedicated to helping customers improve their individual health and ...