Other Available Colours: 

1. Garmin Descent Mk3 - 43mm Fog Gray Stainless Steel
2. Garmin Descent Mk3i - 43mm Carbon Gray DLC Titanium
3. Garmin Descent Mk3i - 43mm Brozen PVD Titanium
4. Garmin Descent Mk3i - 51mm Carbon Gray Titanium

Compatible Accessories: 

1. Garmin Descent T2 Transmitter

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 via required software update) up to 30 meters as well as monitor tank pressures and depth for up to 8 divers within a range of 10 meters.

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.

DIVEVIEW MAPS

Color 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.

DIVE-FOCUSED DESIGN

With its bright 1.2” AMOLED color display, sapphire lens, 200-meter dive-rated case and leakproof metal inductive buttons, this watch is built to go deep.

DIVE FEATURES

BUILT-IN LED FLASHLIGHT

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

DIVE LOG

Store and review data, track gear, take notes — and share via the Garmin Dive smartphone app.

LONG BATTERY LIFE

Stay in the water longer with up to 30 hours in dive mode plus up to 10 days in smartwatch mode.

CUSTOMIZABLE DIVE MODES

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

SURFACE GPS

Track your entry and exit points on the surface with advanced satellite connectivity.

Garmin Dive App

Pair the app with your Descent dive computer to automatically sync and upload your dive logs.

LUME MODE

To aid readability and help maintain night vision, an ambient light sensor gives a green luminescence to your watch face in low-light conditions.

DIVE COMPASS

Built-in ABC sensors, including an underwater compass, help navigate every part of your dive.

REFERENCE POINT

Use this GPS tool for surface navigation to a dive site, so you can drop right onto your target every time.

VARIOMETER

This tool helps you monitor your freedive descent and ascent rates through tone and vibration feedback.

BIG NUMBERS MODE

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

TIDE DATA

Stay up to date on ocean conditions by pairing your Descent device with your compatible smartphone.

INREACH DEVICE COMPATIBLE

Pair with inReach devices and the inReach dive case for satellite messaging off-grid.

HEALTH AND FITNESS FEATURES

SPORTS APPS

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

SURF ACTIVITY

Record the number of waves surfed, maximum speed reached, distance traveled and more.

SURFLINE CAMERA

Create a video of every wave you ride in front of a Surfline camera with Surfline Sessions technology. Use the Surfline widget to see tide, wave height, wind and surf rating for each of the five nearest surf spots.

BACKCOUNTRY SKI AND SNOWBOARD

Get ascent and descent data along with metrics such as cadence, stride length and grade.

VO2 MAX

See your current fitness level, and track changes over time to set goals, evaluate progress and more.

RECOVERY TIME

Know how long you need to recover before your next high-effort workout based on your latest training.

DAILY SUGGESTED WORKOUTS

View your entire week of daily suggested workouts, which adapt after every run or ride.

ANIMATED WORKOUTS

Follow animated workouts for cardio, strength, yoga and Pilates workouts on the watch screen.

WRIST-BASED HEART RATE

The watch constantly samples your heart rate to help you gauge how hard you work during activities.

PULSE OX SENSOR

Track your blood oxygen saturation while you’re awake or asleep, and gain awareness of how you’re adapting to altitude.

JET LAG ADVISER

Help to minimize the effects of jet lag with guidance on light exposure, sleep schedule and exercise.

ENDURANCE SCORE

This measurement uses your VO2 max, training loads and other factors to show how training affects your ability to sustain prolonged physical efforts.

HILL SCORE

Based on your VO2 max and training history, this feature measures your strength and endurance for running uphill.

GARMIN COACH

Train for physical challenges with expert coaching and a dynamic training plan keyed to your goals and performance.

SLEEP MONITORING AND SLEEP SCORE

Understand your body’s recovery with sleep score, breakdown of your sleep stages and detailed insights for improved sleep quality.

WOMEN’S HEALTH TRACKING

Track and log your menstrual cycle or pregnancy to get exercise and nutrition education.

NAVIGATION AND ORIENTATION FEATURES

SATIQ TECHNOLOGY

Get superior positioning accuracy with multi-band GPS while optimizing battery life.

MULTICONTINENT TOPO MAPS

Preloaded TopoActive maps from around the world keep your explorations on track.

SKIVIEW MAPS

View run names and difficulty ratings for more than 2,000 preloaded ski resorts worldwide.

ABC SENSORS

Navigate your next trail with an altimeter, barometer and 3-axis electronic compass.

PACEPRO TECHNOLOGY

Plan race-day strategy with GPS-based pace guidance for a selected course or distance.

COURSES WITH TURN-BY-TURN DIRECTIONS

Create or find existing courses in the Garmin Connect app, or sync from your favorite third-party platforms, and get turn-by-turn directions.

ROUND-TRIP ROUTING

Enter how far you want to go, and get suggested routes that will bring you back; even use TrendLine routing to find the best local paths.

CONNECTED LIFESTYLE FEATURES

SAFETY AND TRACKING FEATURES

If you feel unsafe or if your watch senses that an incident occurred, your watch will send a message with your live location.

MUSIC

Download songs and playlists from your Spotify, Deezer or Amazon Music accounts for phone-free listening.

GARMIN PAY CONTACTLESS PAYMENTS

Breeze through checkout lines or transit systems with participating providers.

SMART NOTIFICATIONS

Receive emails, texts and alerts on your watch when paired with your iPhone or Android smartphone.

CONNECT IQ STORE

Add watch faces, data fields and apps to your paired smartwatch.

What You'll Love
Battery life (smartwatch mode)	Up to 25 days (4 days always-on)
Display type	AMOLED
LED FLASHLIGHT	✔️
Touchscreen	✔️
Water rating	Dive (200 meters)
Sleep score and insights	✔️
Training readiness	✔️
Training status	(improved)
Daily suggested workouts	(improved)
Multi-band GPS	✔️
Built-in mapping	✔️
Garmin Pay	✔️
Music storage	✔️

 

General
Lens Material	sapphire crystal
Bezel Material	Diamond-like Carbon (DLC) coated titanium
Case material	fiber-reinforced polymer with titanium rear cover
QuickFit watch band compatible	(26 mm)
Strap material	silicone
Physical size	51 x 51 x 16.4 mm Fits wrists with the following circumference: Silicone band: 135-230 mm Extra long silicone band: 135-355 mm
Weight	no band: 77.8 g silicone band: 105.6 g
Leakproof inductive buttons	✔️
Display Size	1.4” (35.56 mm) diameter
Display resolution	454 x 454 pixels
Color display	✔️
Battery life	Smartwatch: Up to 25 days (4 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
Charging method	Garmin proprietary clip charger
Memory/History	32 GB

 

What in the box: 

• Descent Mk3i – 51 mm, carbon gray DLC titanium with black silicone band
  
• Black extra-long adjustment strap
• USB-C clip charging/data cable
• Documentation