Garmin Descent Mk3i Dive Computer

Descent Mk3i Dive Computer: Dive Deeper with Advanced Features and Seamless Connectivity

Discover a whole new level of underwater exploration with the Descent Mk3i dive computer and smartwatch. Designed with Garmin's latest innovations, this air-integrated device offers everything you need for a successful dive and multisport training — plus smart features for life beyond the water.

SubWave™ Sonar-Based Diver Messaging

Stay connected with your dive buddies underwater. The advanced SubWave™ sonar system lets you send preset messages up to 30 meters and monitor tank pressures and depths for up to 8 divers within a 10-meter range. Perfect for group dives and staying in sync with your team.

Air Integration for Up to 8 Tanks

For detailed, real-time tank monitoring, pair the Descent Mk3i with Descent™ T2 transceivers (sold separately). This allows you to track air pressure on multiple tanks using the SubWave sonar data network, making it easy to manage your air supply during complex dives.

Multiple Dive Modes for Every Type of Dive

Whether you’re diving with single or multiple gases, the Descent Mk3i has you covered. Choose from dive modes for nitrox, trimix, gauge, apnea, apnea hunt, and closed-circuit rebreather (CCR), ensuring you're equipped for any underwater adventure.