Explore both of your worlds, underwater and topside, with Descent™ Mk2, the watch-sized dive computer. It features multiple dive modes, such as single and multiple gas dives, gauge, apnea, apnea hunt and closed-circuit re-breather. The Descent Mk2 comes with ABC sensors with an underwater 3-axis compass as well as surface GPS capabilities to mark your entry and exit points(GPS tracking does not work underwater). On land, Descent Mk2 doubles as a premium multisport GPS smartwatch with multi-GNSS support, multiple sports apps, wrist-based heart rate monitoringestimates, Pulse Ox(this is not a medical device and is not intended for use in the diagnosis or monitoring of any medical condition)sensor, advanced training features, Garmin Pay™ payment service(not all countries and payment networks are eligible), music storage, smart notifications(when paired with a compatible smartphone) for calls, texts and calendar alerts and more.

This is the advanced, watch-style dive computer that comes with multisport training and smart features. If you want air integration, take a look at Descent Mk2i.