DISCOVER A DEEPER CONNECTION

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 experience — plus multisport training and smart features for your active life out of the water.

Descent Mk3i Titanium Carbon Grey DLC with black band

Descent Mk3i, titanium carbon grey DLC, with black Band
Decent T2 transmitter - optional extra
Black QuickFit 26 silicone band
Black extra-long adjustment strap
Charging/data cable
Documentation

THE DIVE COMPUTER FOR BOTH YOUR WORLDS

Monitor your gas and depth¹ with the advanced, watch-style dive computer that comes with multisport training and smart features.

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.k1.

SUBWAVE SONAR

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 MODES

Get multiple dive modes for single and multiple gas dives (including nitrox and trimix), gauge, apnea, apnea hunt and closed-circuit rebreather.

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.

CUSTOMISABLE DIVE MODES

Add additional screens for each dive mode that features the fields you want to see.

SURFACE MULTI-GNSS

Track your entry and exit² points with advanced satellite connectivity.

DIVE LOG

Store and review data for up to 200 dives — and share via the Garmin Dive app.

DIVEVIEW MAPS

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.

BUILT-IN LED FLASHLIGHT

See and be seen with variable light intensities and strobe modes, in or out of the water.

LONG BATTERY LIFE

Stay in the water longer with up to 66 hours in dive mode plus up to 25 days in smartwatch mode.

DIVE-FOCUSED DESIGN

With its bright 1.4″ AMOLED color display, sapphire lens, 200-meter dive-rated case and leakproof metal inductive buttons, this watch is built to go deep.

BIG NUMBERS MODE

Get a simplified dive screen on your wrist, with larger text to see critical diving data.

INREACH® COMPATIBLE

Pair with inReach satellite communicators³ and the inReach dive case.

PERFORMANCE METRICS

View advanced training metrics that include running dynamics, heat- and altitude-adjusted VO2 max, recovery advisor and more⁴.

PACEPRO™ TECHNOLOGY

A first-of-its-kind feature that helps keep you on pace with grade-adjusted guidance as you run a course.

SPORTS APPS

Use preloaded activity profiles for trail running, swimming, running, biking, hiking, rowing, skiing, golfing and more.

ANIMATED WORKOUTS

Easily follow animated workouts for cardio, strength, yoga and Pilates. View workouts right on your watch screen.

TOPOACTIVE EUROPE AND SKI MAPS

Use TopoActive Europe maps to navigate your adventures and view run names and difficulty ratings for 2,000 worldwide ski resorts.

ABC SURFACE SENSORS

Navigate your next trail with ABC sensors, including an altimeter for elevation data, barometer to monitor weather and 3-axis compass.

WRIST-BASED HEART RATE

Optical heart rate⁵ technology gauges activity intensity as well as heart rate variability to calculate your stress level. It also tracks underwater without a heart rate strap.

PULSE OX SENSOR

For altitude acclimation, sleep monitoring or between Apnea/Apnea Hunt activities on the surface, a Pulse Ox⁴ sensor uses light beams at your wrist to gauge how well your body is absorbing oxygen.

ALL DAY RESPIRATION

Track how you’re breathing throughout the day, during sleep and during breathwork and activities such as yoga.

TURN-BY-TURN NAVIGATION

Follow a route or course with help from turn-by-turn directions, which let you know ahead of time when the next turn is coming.

ROUND-TRIP ROUTING

Enter a distance you want to travel, and get suggested routes that will bring you back to your starting point. Trendline™ popularity routing helps you find the best local paths.

SAFETY AND TRACKING FEATURES

If you feel unsafe or if your watch senses an incident, assistance and incident detection features⁶ send your location to emergency services. Feature not available while in dive mode.

MUSIC

Store up to 2,000 songs, or access streaming music apps from your compatible services, including Spotify^®, Deezer and Amazon Music.

GARMIN PAY™ CONTACTLESS PAYMENTS

Breeze through checkout lines with Garmin Pay contactless payment solution⁸ through participating providers.

SMART NOTIFICATIONS

Receive emails, texts and alerts right on your wrist when paired with a compatible device.

CONNECT IQ™ STORE

Download custom watch faces, add data fields, and get apps and widgets from the Connect IQ Store.

The battery in your Garmin device is simply unmatched by other smartwatches.

Battery life

Smartwatch: Up to 25 days (10 days always-on)
Battery Saver Watch Mode: Up to 31 days
GPS Only: Up to 76 hours (56 hours always-on)
All Satellite Systems: Up to 55 hours (43 hours always-on)
All Satellite Systems + Multi-band: Up to 48 hours (38 hours always-on)
All Satellite Systems + Music: Up to 17 hours
Max Battery GPS: Up to 118 hours
Expedition GPS: Up to 24 days
Dive mode: up to 66 hours
Dive Mode with Air Integration: Up to 40 hours

KNOW YOUR TANK PRESSURE FROM YOUR WRIST

Track your every breath when you pair the Descent™ T1 transmitter with a Descent dive computer. Monitor up to 8 tanks via SubWave™ sonar technology so you can dive with multiple tanks or see your buddy’s air levels¹.

Descent T2 enables you to monitor tank pressure, remaining air time and air consumption rate for multiple types of diving.

AIR INTEGRATION

Pair with Descent T2 transmitter for integrated pressure monitoring on up to 8 tanks via SubWave™ sonar data network¹.

Descent T2 transmitter specs:

Physical Dimensions: 84.50 x 36.52 x 36.52 mm
Battery: 3 V CR123A lithium
Battery life: Up to 100 hours
Thread type: 7/16 in. (20 UNF)
Normal operating temperature: From -20 to 60°C
Underwater operating temperature: From 0 to 40°C
Storage temperature: From -30 to 70°C
Wireless frequency: 2.4 GHz @ 0 dBm
Surface transmission range (ANT wireless technology): Up to 10 m
Underwater transmission range (sonar): Up to 10 m
Dive messaging, Up to 30 m (98 ft); requires compatible Descent Mk3i dive computer
Water rating: Dive 110 metres
Pressure rating: 300 bar (4351 psi)
Inspection interval: Inspect parts before each use for damage. Replace parts as needed. (Aside from normal wear and tear, performance is not affected by aging.)

Garmin Descent™ Mk3i – 51 mm, Carbon grey DLC titanium with black silicone band