Description
Compact Design. Professional Dive Performance.
The Garmin Descent Mk3i 43mm combines advanced dive computer technology with premium smartwatch functionality in a compact, lightweight design. Built for divers who demand professional-grade underwater capabilities without compromising everyday comfort, the Descent Mk3i delivers industry-leading dive features, sophisticated health monitoring, comprehensive navigation tools and smart connectivity in a sleek carbon grey DLC titanium case.
Featuring a vibrant 1.2-inch AMOLED display, sapphire crystal lens and rugged 200-metre dive-rated construction, this premium dive computer is designed to perform in the most challenging underwater environments while remaining comfortable enough for all-day wear.
Advanced SubWave™ Sonar Diver Communication
Experience a new level of underwater awareness with Garmin's innovative SubWave™ sonar networking technology. Exchange preset diver-to-diver messages up to 30 metres away and monitor tank pressure and depth information for up to eight divers within a 10-metre range when paired with compatible Descent™ T2 transceivers.
This advanced communication system enhances team coordination and helps improve diver safety during every dive.
Multiple Dive Modes for Every Underwater Adventure
The Descent Mk3i supports a wide range of diving disciplines, including:
- Single Gas Diving
- Multi-Gas Diving
- Nitrox Diving
- Trimix Diving
- Closed-Circuit Rebreather (CCR)
- Gauge Mode
- Apnea
- Apnea Hunt
- Freediving
Customisable dive screens allow you to personalise data fields for each dive mode, ensuring the information you need is always available at a glance.
Dive Readiness Technology
Exclusive Dive Readiness technology helps assess your preparedness before entering the water by analysing key lifestyle factors such as:
- Sleep Quality
- Stress Levels
- Exercise Load
- Recovery Status
- Jet Lag
This intelligent feature provides valuable insights to help support safer dive planning and decision-making.
DiveView™ Maps & Underwater Navigation
Explore new dive locations with confidence using DiveView™ colour maps featuring bathymetric depth contours and access to over 4,000 dive sites worldwide.
Additional navigation tools include:
- Surface GPS Tracking
- Dive Compass
- Reference Point Navigation
- Tide Information
- Variometer for Freediving
- Turn-by-Turn Directions
- Round-Trip Routing
- SatIQ™ Multi-Band GPS Technology
Whether underwater or exploring on land, the Descent Mk3i helps keep you on course.
Rugged Dive-Focused Construction
Engineered for demanding underwater conditions, the Descent Mk3i features:
- Carbon Grey DLC Titanium Bezel
- Black Silicone Dive Band
- Bright 1.2-inch AMOLED Display
- Sapphire Crystal Lens
- Leakproof Metal Inductive Buttons
- 200-Metre Dive Rating
- Lume Mode for Enhanced Night Visibility
Its premium materials and durable construction provide exceptional reliability in extreme environments.
Air Integration & Advanced Dive Features
The Descent Mk3i offers comprehensive dive management tools including:
- Air Integration Compatibility
- Dive Logging & Equipment Tracking
- Garmin Dive™ App Synchronisation
- NDL Aware™ Depth Metrics
- Sidemount Tank Switch Guidance
- Post-Dive Activity Guidance
- Big Numbers Mode
- Surface Entry & Exit Tracking
Together, these features help optimise dive planning, safety and post-dive analysis.
Long-Lasting Battery Performance
Designed for extended adventures, the Descent Mk3i delivers:
- Up to 30 Hours in Dive Mode
- Up to 10 Days in Smartwatch Mode
Reliable battery life ensures you can focus on your adventure rather than your charging schedule.
Comprehensive Health & Wellness Tracking
Beyond diving, the Descent Mk3i provides Garmin's advanced health monitoring features, including:
- Wrist-Based Heart Rate Monitoring
- Pulse Ox Blood Oxygen Tracking
- Sleep Monitoring & Sleep Score
- Breathing Variations Tracking
- Women's Health Tracking
- Recovery Time
- VO2 Max
- Endurance Score
- Hill Score
- Jet Lag Adviser
- Lifestyle Logging
Gain valuable insights into your fitness, recovery and overall wellbeing.
Multi-Sport Performance Tracking
The Descent Mk3i is equipped with activity profiles for:
- Running
- Trail Running
- Swimming
- Cycling
- Hiking
- Rowing
- Golf
- Surfing
- Skiing
- Snowboarding
- Strength Training
- Yoga
- Pilates
Surfline® integration also provides surf conditions, tide information and wave-tracking features for water sports enthusiasts.
Premium Smartwatch Features
Stay connected throughout the day with advanced smartwatch functionality, including:
- Smart Notifications
- Garmin Pay™ Contactless Payments
- Music Storage & Streaming
- Spotify®, Amazon Music, Deezer & YouTube Music Support
- Connect IQ™ App Store Access
- Incident Detection & Safety Tracking
- inReach® Satellite Communication Compatibility
Enjoy seamless connectivity whether you're underwater, training outdoors or navigating everyday life.
Key Features
- Compact 43mm Dive Computer & Smartwatch
- Carbon Grey DLC Titanium Construction
- SubWave™ Sonar Diver Messaging
- Air Integration Capability
- Dive Readiness Assessment Tool
- DiveView™ Maps with 4,000+ Dive Sites
- Multiple Dive Modes Including Nitrox & Trimix
- AMOLED Display with Sapphire Lens
- 200m Dive-Rated Design
- Up to 30 Hours Dive Battery Life
- Multi-Band GPS with SatIQ™ Technology
- Advanced Health & Fitness Monitoring
- Garmin Pay™ Contactless Payments
- Music Storage & Streaming Support
- Garmin Dive™ App Compatibility
The Garmin Descent Mk3i 43mm Carbon Grey DLC Titanium Dive Computer Smartwatch delivers professional underwater performance, advanced navigation and premium smartwatch functionality in a compact, durable design built for serious divers and active adventurers.
