It’s carefully and sturdily designed to deliver, wherever you explore fitness. You can get out there and active with GPS tracking. You can monitor key health biometrics, track activity levels and train with 100 Sports Modes. Plus Ryze Trek packs Amazon Alexa voice control, along with Bluetooth connectivity for making calls, playing music and more. GPS tracking Heart Rate, Blood Oxygen and Stress Level monitoring 100 Sports Modes AI Run Companion Bluetooth calling and connectivity Alexa Built-in Integration Streamlined Health Check-in Sleep Monitor Feminine Health Monitor Premium strap design *Please note, this is not a medical device.