Garmin Descent™ Mk3i – 43 mm Watch-Style Dive Computer
Garmin Descent™ Mk3i – 43 mm Watch-Style Dive Computer
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Product Description
Garmin Descent™ Mk3i – 43 mm Watch-Style Dive Computer
DESCRIPTION
The Garmin Descent™ Mk3i is an air-integrated dive computer featuring advanced sonar-based diver communication, real-time tank monitoring, and GPS-assisted dive mapping. Whether you're diving deep, training on land, or navigating terrain, the Mk3i delivers unmatched versatility in a 43MM watch-style design.
Pair it with the Descent™ T2 transceiver (sold separately) to monitor up to 8 tanks via the SubWave sonar network. Multi-band GPS and DiveView™ maps offer bathymetric depth contours and pinpoint entry/exit tracking. With big-number mode and tide data, you’ll stay informed in any diving condition.
For fitness and adventure, the Mk3i integrates VO2 max tracking, real-time stamina monitoring, and recovery tools. Garmin Pay™, offline music storage, and turn-by-turn navigation enhance daily convenience.
With up to 30 hours of battery life in dive mode, 10 days in smartwatch mode, and a durable 200M dive rating, the Mk3i is built to endure.
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.
- SUBWAVE SONAR-BASED DIVER MESSAGING (COMING SOON VIA REQUIRED SOFTWARE UPDATE)
- UP TO 30 HOURS OF BATTERY LIFE IN DIVE MODE
- CHOOSE FROM MULTIPLE DIVE MODES
- DIVEVIEW™ COLOR MAPS WITH DEPTH CONTOURS AND DIVE SITES
- USE THE DIVE READINESS TOOL TO INFORM YOUR PREPARATION
- DEEPEN YOUR CONFIDENCE WITH A 200-METER DIVE RATING
Key Features
Advanced Dive Technology
- SubWave™ Sonar Networking: Monitor up to 8 divers’ tank pressures and depth (10m range).
- Diver Messaging: Exchange preformatted diver-to-diver messages (via software update, 30m range).
- Multiple Dive Modes: Supports nitrox, trimix, CCR, apnea, and apnea hunt diving.
- Dive Readiness Tool: Analyzes sleep, stress, and exercise factors for optimized dive preparation.
- DiveView™ Maps: Color maps with depth contours and 4,000+ dive sites.
- GPS Surface Tracking: Tracks entry/exit points and pre-dive navigation.
- Big Number Mode: Enlarged display for enhanced readability underwater.
- Variometer: Tone and vibration feedback for freedive descent/ascent rates.
- Lume Mode: Green luminescence enhances low-light readability.
- InReach® Compatibility: Connects with Garmin InReach for satellite messaging (requires dive case).
Multisport Training & Navigation
- Preloaded Sports Apps: Includes running, cycling, swimming, golf, skiing, rowing, and HIIT.
- Backcountry Ski Mode: Distinguishes between ascent and descent for accurate tracking.
- Trail Run VO2 Max: Adjusts VO2 max for trail conditions.
- Surf Features: Records waves surfed, speed, and distance.
- Surfline® Camera Integration: Captures waves with Surfline Sessions™ (smartphone required).
- Turn-by-Turn Navigation: Follow preloaded and custom routes.
- Multi-Band GPS + SatIQ™: Optimizes positioning accuracy and battery life.
- SkiView™ Maps: Displays 2,000+ ski resort runs and difficulty ratings.
Health & Recovery Tracking
- Wrist-Based Heart Rate: Monitors heart rate above and below water.
- Pulse Ox Sensor: Assesses blood oxygen levels for sleep and altitude acclimation.
- Endurance & Hill Scores: Evaluates stamina for prolonged efforts and uphill performance.
- Jet Lag Adviser: Provides travel-based sleep and light exposure recommendations.
- Sleep Monitoring & Recovery: Tracks sleep cycles, sleep scores, and daily readiness.
- Daily Suggested Workouts: Adapts training based on recovery and fitness progress.
Smartwatch Features & Connectivity
- Music Storage: Stores offline playlists from Spotify®, Deezer, and Amazon Music.
- Garmin Pay™: Supports contactless payments for seamless transactions.
- Smart Notifications: Receives calls, messages, and alerts when paired with a compatible phone.
- Connect IQ™ Store: Customize with watch faces, apps, widgets, and data fields.
- Safety & Tracking: Live location sharing, incident detection, and assistance alerts.
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 meters1.
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
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.
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.
SURFACE GPS
Track your entry and exit points on the surface with advanced satellite connectivity.
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 devices2 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 spots3.
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 rate4 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 altitude5.
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 quality4.
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 location6.
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.
Detailed Specifications
| Feature | Specification |
|---|---|
| Lens Material | Sapphire Crystal |
| Bezel Material | Titanium (Carbon Gray DLC or Bronze PVD) |
| Case Material | Fiber-Reinforced Polymer |
| QuickFit™ Band | Yes (20mm) |
| Strap Material | Silicone (Black or French Gray) |
| Physical Size | 43 x 43 x 14.15 mm |
| Wrist Fit |
Silicone Band: 128-224mm Extra-Long Band: 126-360mm |
| Display Size | 1.2” (30.4 mm) diameter |
| Display Resolution | 390 x 390 pixels |
| Display Type | AMOLED with Lume Mode |
| Weight | Silicone Band: 60g, Case Only: 41g |
| Battery Life |
Smartwatch Mode: Up to 10 days Dive Mode: Up to 30 hours GPS Mode: Up to 18 hours |
| Water Rating | Dive (200 meters) |
| Memory/Storage | 32 GB |
In Package
Carbon Gray DLC Titanium with Black Band
- Descent Mk3i – 43 mm, carbon gray DLC titanium with black silicone band
- Black extra-long adjustment strap
- USB-C clip charging/data cable
- Documentation
Bronze PVD Titanium with French Gray Band
- Descent Mk3i – 43 mm, bronze PVD titanium with French gray silicone band
- French gray extra-long adjustment strap
- USB-C clip charging/data cable
- Documentation
Descent Mk3i – 43 mm Bundle
- Descent Mk3i – 43 mm, bronze PVD titanium with French gray silicone band
- Descent T2 transmitter
- French gray extra-long adjustment strap
- USB-C clip charging/data cable
- Air spool
- Documentation
Manuals & Documents
General Warranty Info:
- Ripping It Outdoors works closely with our manufacturers to supply and support your products warranty needs as best as possible!
- The majority of products come with a manufacturer represented warranty against manufacturing defects for at least a 12 month period after the date of sale.
- Expendable components and "wear parts" including but not limited to blades, knives, teeth, oil, chain sprockets, skid shoes, knife mounting discs, and similar components are usually excluded from manufacturer warranties.
- Please reach out to us for any specific warranty information needed about products and parts you can’t find!
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