GARMIN Descent Mk3i (51mm) Dive Computer/Smartwatch

The next generation of dive technology.

More than a dive computer – the Garmin Descent Mk3i is a powerhouse of exploration, performance tracking, and connectivity, wrapped in a rugged yet sophisticated design. With air integration, sonar-based diver communication (coming soon), and industry-leading sensors, this is the watch that redefines how you experience the deep.

Model: Mk3i (51mm) Carbon Grey DLC Titanium with Black Silicone Band.

Specifications:

• Size: 51mm x 18.1mm thickness.
• Watch Face: Ultra-bright AMOLED touchscreen display, protected by sapphire crystal lens.
• Material: Titanium bezel and rear cover (DLC-coated).
• Weight: 100.6g (with silicone band).
• Strap: Durable silicone band.

Key Features:

Dive Computer | Advanced Health & Fitness Monitoring | Satellite Navigation | Sonar Comms Ready

Activity Profiles:

Supports 80+ land and water-based activity modes, including:
Gym, Strength, Cardio, HIIT, Running, Cycling, Swimming, Skiing, Snowboarding, Rowing, Motorsport, Racket Sports, and a full suite of diving modes.

Customise training plans, track performance metrics, and sync with Garmin Connect™.

Battery Life:

• Smartwatch Mode: Up to 25 days.
• Battery Saver Mode: Up to 31 days.
• GPS Only (Dive + Surface): Up to 66 hours.
• Dive Mode: Up to 66 hours.

Dive Capabilities:

• 200m depth rating.
• Supports Single-gas, Multi-gas, Nitrox, Trimix, CCR, Gauge, Apnea, Apnea Hunt.
• Bühlmann ZHL-16C algorithm with customisable gradient factors.
• Dive logs with entry/exit GPS coordinates.
• Air integration support (via Garmin Descent™ T2 Transmitter, sold separately).
• SubWave™ sonar technology enables diver-to-diver messaging and tank pressure sharing (functionality rolling out via software updates).
• Full dive history accessible via Garmin Dive™ app.

Health & Fitness Monitoring:

24/7 monitoring with:

• Wrist-based heart rate.
• Pulse Ox (SpO₂).
• Sleep tracking with HRV status.
• Stress monitoring.
• Body Battery™ energy levels.
• VO₂ Max and fitness age.

Sensors:

Top-tier multi-sport precision with:

• GPS, GLONASS, Galileo.
• SatIQ™ technology for battery-efficient GNSS.
• Garmin Elevate™ optical heart rate and Pulse Ox sensor.
• Barometric altimeter.
• Compass.
• Gyroscope.
• Accelerometer.
• Thermometer.
• Ambient light sensor.
• Depth sensor.
• SubWave™ sonar (for communication and tank data).

Charging & Connectivity:

• Charging: Garmin clip charger (included).
• Connectivity: Bluetooth, Wi-Fi, ANT+.
• Compatible with Android and iPhone.
• Smart features: Music storage, contactless payments (Garmin Pay), notifications, safety & tracking.

Diving. Evolved.

The Garmin Descent Mk3i blends rugged dive-readiness with everyday functionality and next-gen communication. Whether you’re exploring new depths, training hard on land, or navigating far from the beaten path, this is a tool built for the serious explorer – and it’s only getting smarter.

Warranty: 2 Years Local Warranty 

*If item is Out Of Stock, contact us (info@thesubmersibles.com) to order separately.