GTR 3 maintains a refined elegance only found in classic round watches, and integrates a powerful battery which can last for up to 21 days. You can test your heart rate, blood-oxygen saturation, stress level and breathing rate in a single tap of the watch, for a result in as ...GTR 3 maintains a refined elegance only found in classic round watches, and integrates a powerful battery which can last for up to 21 days. You can test your heart rate, blood-oxygen saturation, stress level and breathing rate in a single tap of the watch, for a result in as little as 45 seconds.
The advanced health tracking option also includes in-depth monitoring of sleep & sleep breathing quality and female cycle tracking. With over 150 built-in sports modes to suit your choice of activity and smart recognition of 8 sports modes. Compatible with Android 7.0 and above, iOS 12.0 and above device.