Garmin Descent™ Mk3i Titanium GPS Smart Dive Watch with Carbon Gray DLC Titanium Band + Descent T2 Pressure Probe, 51mm Case. Featuring SubWave™ underwater communication technology and diver tracking, this dive computer with air pressure management¹ and smartwatch features the latest Garmin innovations. So you can get the most out of your diving experience. It also has multisport training options and smart features to support your active life, even out of the water.
T2 probe included. Designed to withstand the elements, the Descent T2 pressure probe is resistant up to 20 ATM (200 meters) and allows you to dive even deeper with confidence.
Pair it with our Descent™ T2 pressure probes (sold separately) to benefit from pressure monitoring on up to 8 cylinders via the SubWave underwater communication network.
Allows predefined messages to be exchanged between divers up to 30 meters away and to monitor tank pressure and depth for up to 8 divers, over a range of 10 meters
Exclusive to Garmin, this technology shows how lifestyle factors like sleep, exercise, stress, and jet lag can affect your body and help you determine when you're best prepared to dive.
Benefit from multiple dive modes: single-gas, multi-gas (including nitrox and trimix), depth gauge, freediving, freediving and closed-circuit rebreather.
Full-color maps displayed on your device provide bathymetric depth contours and over 4,000 dive sites to help you discover new diving spots and navigate.
With its bright 1.4″ AMOLED color display, sapphire crystal glass, waterproof case for dives up to 200 meters and waterproof metal inductive buttons, this dive computer is designed to dive ever deeper.

DIVE LOG
Store and view data, track your gear, take notes and share them via the Garmin Dive™ smartphone app.
INTEGRATED LED FLASHLIGHT
See and be seen with variable light intensities and strobe modes, on land and in water.
LONG-TERM AUTONOMY
Stay in the water longer with 66 hours of battery life in dive mode and up to 25 days in smartwatch mode.
CUSTOMIZABLE DIVE MODES
Add additional screens for each dive mode with the fields you need.
LIGHT MODE
To aid readability and maintain night vision, an ambient light sensor gives your device's dial a green luminescence in low light conditions.
DIVING COMPASS
Built-in ABC sensors including an underwater compass help you navigate throughout your dive.
SURFACE GPS
Track your water entry and exit points with advanced satellite connectivity.
GARMIN DIVE APP
Pair the app with your Descent dive computer to automatically sync and upload your dive logs.
REFERENCE POINT
Use the GPS tool to guide you on the surface to your dive site to simplify navigation to your target.
VARIOMETER
This tool helps you monitor your descent and ascent speed while freediving using sound and vibration information.
Big Numbers Mode
Enjoy a simplified dive display on your device, with larger text to show essential dive data.
TIDAL DATA
Stay informed about ocean conditions by pairing your Descent device with your compatible smartphone.
COMPATIBILITY WITH INREACH® DEVICES
Pair it with inReach2 devices and case for off-grid satellite messaging.