Your Descent™ X50i dive computer is compatible with the Descent S1 buoy accessory. When you pair your devices, your Descent S1 buoy creates a dive network that connects the surface users using the Garmin Dive™ app with divers below the surface using both a Descent X50i dive computer and Descent T2 transceiver. Divers can send and receive messages from users on the surface, and can also receive guidance for navigating back to the buoy (Navigating to the Buoy). Users on the surface can track the location of the divers in the network. At the end of a dive, the buoy syncs with your dive computer, and you can view underwater heat maps for approximate location information in the Garmin Dive app.

See the owner's manual for your Descent S1 buoy accessory for more information.