The Garmin Descent Mk3i dive watch is a combination dive computer, smartwatch and sports computer. This computer features impeccable craftsmanship and a host of features that are nothing short of incredible. The Mk3i is suitable for recreational divers and freediving, as well as technical divers (it supports multiple mixes and trimixes) and even closed circuit CCR diving.
If you dive, sport, ski and use a smartwatch, this is the right choice for you!



BREATHE PRESSURE MONITORING
When paired with the Descent T2 transmitter(sold separately), you can monitor the pressure in up to 8 bottles via the SubWave sonar data network.

DIVE MODES
There are several dive modes, single-mix or multi-mix, gauge mode with a single depth gauge, classic Apnea for freediving, Apnea Hunt, and closed-circuit CCR dives.

Dive Readiness Scale
New technology shows how fit you are and how lifestyle factors (sleep, exercise, stress, jet lag) can affect your body relative to dive readiness.
MAPS
Detailed maps with bathymetric contour plotting and over 4,000 dive sites. They'll help you discover new dive sites and find the right way to them.
DIVING DESIGNED
Diving Designed for use at depth - this watch has a bright, colorful 1.4” AMOLED display, sapphire crystal, a case that is resistant to depths of up to 200 meters and waterproof metal induction buttons.
SONAR NETWORK SUBWAVE
Send preset messages with other divers (coming soon) up to 30 meters away and monitor cylinder pressure and depth for up to 8 divers within 10 meters.

DIVE FEATURES
LOGBOOK
The computer stores dive data that you can browse, track equipment, take notes - and share using the Garmin Dive mobile app.
LED LIGHT
Variable light intensity and flash modes make you visible and easy to see in the water and on land.
LONG BATTERY LIFE
Long battery life, up to 66 hours in dive mode and up to 25 days in smartwatch mode.
MODE ADJUSTMENTS
Add additional screens to each dive mode and choose the data that is most important to the user during their own dive.
LUME MODE
An ambient light sensor automatically activates the dial backlight for better readability in lower light conditions.
DIVING COMPASS
Integrated ABC sensors and underwater compass equipment make it easy to navigate during a dive.
Built-in GPS
Track dive entry and exit points using advanced satellite technology.
GARMIN DIVE APP
Pair the app with your Descent dive computer to automatically sync and upload your stats.
DIVE NAVIGATION
Use GPS navigation to save time and get accurate directions to your dive site.
VARIOMETER
The feature helps you monitor your descent and ascent rates during a free dive. The computer has built-in audible and vibration alarms.
BIG NUMBER DIRECTION
Simplified display shows the most important data needed by the diver using big numbers.
LIGHTING/LEVEL DATA
The watch provides current and closest level information. The feature requires pairing with a compatible phone.
INREACH® COMMUNICATIONS
Pair the watch with an inReach2 communicator to send and receive satellite messages even in locations without cellular signal.
VERSATILE SPORTS USE
Versatile sports features and separate profiles are available for trail running, cycling, swimming, skiing, golf, hiking and more. Each profile has individual settings.
- SURFING
- LYING AND SKIPPINISM
- VO2 MAX
- REGENERATION ASSIST
- RECOMMENDED DAILY WORKOUTS
- ANIMATED EXERCISE
- HEART rate measurement HEAT
- PULSE OXYMETER
- JAT LAG SUPPORT
- SURVIVAL SCORE
- UPHILL RUNNING SCORE
- GARMIN TRAINER
- SLEEP MONITORING
NAVIGATION AND ORIENTATION FUNCTIONS
- ADDITIONAL TOPO MAPS
- SKIVIEW™ SKI MAPS
- Built-in ABC SENSORS
- CIRCULAR ROUTE CALCULATION
FUNCTIONS FOR A CONNECTED LIFESTYLE
- DETECTION OF ACCIDENTS
- MUSIC
- GARMIN PAY™
- CHEARLY NOTIFICATIONS from iPhone and Android phones