The Garmin Descent MK3si Ti/BLK Dive Computer is the ultimate dive watch for those who want to discover a deeper connection with the underwater world. With 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 experience — plus multisport training and smart features for your active life out of the water.

One of the most exciting features of the Garmin Descent MK3si Ti/BLK Dive Computer is the SubWave sonar-based diver messaging (coming soon). This feature will allow you to exchange preset diver-to-diver messages up to 30 meters as well as monitor tank pressures and depth for up to 8 divers within a range of 10 metres.

With up to 30 hours of battery life in dive mode, you can explore the depths for longer periods of time. Choose from multiple dive modes, including single and multiple gas dives (including nitrox and trimix), gauge, apnea, apnea hunt and closed-circuit rebreather.

The DiveView™ colour maps with depth contours and dive sites will help you discover new places to dive and get oriented. Use the dive readiness tool to inform your preparation and deepen your confidence with a 200-meter dive rating.

The air integration feature allows you to pair with our Descent™ T2 transceivers (sold separately) for integrated pressure monitoring on up to 8 tanks via the SubWave sonar data network. The dive-focused design, with its bright 1.2″ AMOLED color display, sapphire lens, 200-meter dive-rated case.

Garmin Descent MK3si Ti/BLK Dive Computer

• UP TO 30 HOURS OF BATTERY LIFE IN DIVE MODE: allows you to do multiple long dives before needing to recharge
• DIVEVIEW™ COLOUR MAPS WITH DEPTH CONTOURS AND DIVE SITES: colour maps on your wrist offer bathymetric depth contours and more than 4,000 dive sites to help you discover new places to dive and get oriented.
• 200-METER DIVE RATING: With its bright 1.2″ AMOLED colour display, sapphire lens, 200-meter dive-rated case and leakproof metal inductive buttons, this watch is built to go deep.
• AIR INTEGRATION: Pair with our 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 diver-to-diver messages (coming soon) up to 30 meters as well as monitor tank pressures and depth for up to 8 divers within a range of 10 metres1.
• DIVE READINESS TOOL: This Garmin first technology shows how lifestyle factors such as sleep, exercise, stress and jet lag can affect your body — to help gauge when you are best prepared to dive.
• DIVE MODES: Get multiple dive modes for single and multiple gas dives (including nitrox and trimix), gauge, apnea, apnea hunt and closed-circuit rebreather.