Featuring SubWave sonar-based communication and diver monitoring, this advanced, air-integrated¹ dive computer and smartwatch comes with Garmin innovations to help prepare you to make the most of your diving experienceplus multisport training and smart features for your active life out of the water. Subwave Sonar-based Diver Messaging Up To 30 Hours Of Battery Life In Dive Mode Choose From Multiple Dive Modes Diveview Colour Maps With Depth Contours And Dive Sites Use The Dive Readiness Tool To Inform Your Preparation Deepen Your Confidence With A 200-metre Dive Rating Included Descent Mk3i43 mm, Carbon grey DLC titanium or  bronze PVD titanium with French grey silicone band Black extra-long adjustment strap USB-C Clip Charging/Data Cable Documentation Additional InformationSe Air Integration Pair with Garmin Descent T2 transceivers (sold separately) for integrated pressure monitoring on up to 8 tanks via the SubWave sonar data network. Subwave Sonar Networking Exchange preset di