Garmin’s D2 Delta PX Aviator has a Built-in Oxygen Sensor

The D2 Delta PX from Garmin is a premium GPS aviator watch stacked with tech like a wrist-based Pulse Oxygen sensor that tracks blood oxygen saturation. Aviation functions that include dynamic color mapping, NEXRAD weather, airport data, automatic flight logging, alerts, connectivity with select avionics and more. It also delivers notifications, all the essential sport watch & tracking functions, plus space to store 5000 of your favorite songs, and up to 20-day battery life.