Garmin Descent MK3i Dive Computer

Regular price £1,249.99 GBP
Sale price £1,249.99 GBP Regular price
Tax included.

Please contact us or put a note for pickup availability at Maritime House or Pool Locations.

Usually ready in 2-4 days

Garmin Descent MK3i Dive Computer

No / French grey / 43mm
  • Maritime House

    Pick up available, usually ready in 2-4 days

    Maritime House
    Basin Road North
    Hove BN41 1WR
    United Kingdom


Garmin Descent MK3i

The Garmin Descent Mk3i is a highly advanced Dive Computer and Smartwatch. Unleash the potential of your diving experience with our cutting-edge dive computer and smartwatch, featuring SubWave™ sonar-based communication and diver monitoring. Designed for both underwater adventures and an active lifestyle above water, this device integrates Garmin innovations to enhance your overall diving and training experience.

The Garmin Descent MK3i Dive Computer comes in two sizes to suit your requirements, 51mm and a smaller 43mm. 

One standout feature of the Garmin Descent MK3i is its air integration capabilities, allowing divers to monitor their tank pressure directly on the wrist-worn device. This invaluable feature enhances safety by providing divers with constant awareness of their air supply. The Garmin Descent MK3i dive computer also supports multiple gas mixes, catering to the needs of technical divers who use enriched air or other specialized gas blends. Its robust build and water-resistant design make it suitable for various diving environments, from recreational dives to challenging deep-sea explorations.

In addition to its diving functionalities, the Garmin Descent MK3i is a versatile smartwatch that seamlessly transitions from underwater adventures to everyday life. It offers smart notifications, music controls, and fitness tracking features, making it a reliable companion both in and out of the water. With its long battery life and durable construction, the MK3i is designed to withstand the rigors of the underwater world while providing divers with the technology they need to enhance their diving experience.

In summary, the Garmin Descent MK3i dive computer stands out as a top-tier device that combines advanced dive features with everyday smartwatch capabilities. Its user-friendly interface, air integration, and rugged design make it a compelling choice for divers seeking a reliable and versatile tool for their underwater explorations. Whether you are a recreational diver or a technical enthusiast, the MK3i promises to elevate your diving experience to new depths.

Garmin Descent MK3i Dive Computer Key Features:

  • SubWave™ Sonar-Based Diver Messaging: Stay connected underwater with upcoming SubWave technology, allowing divers to exchange messages within a range of 30 meters. Please see the attached PDF that gives you a little more information on the Diver to Diver messaging
  • Up to 66 Hours of Battery Life in Dive Mode: Dive longer with extended battery life, providing up to 66 hours in dive mode and up to 25 days in smartwatch mode.
  • Multiple Dive Modes: Choose from a variety of dive modes, including single and multiple gas dives, nitrox, trimix, gauge, apnea, apnea hunt, and closed-circuit rebreather.
  • DiveView™ Colour Maps: Explore more than 4,000 dive sites with detailed bathymetric depth contours and dive site information on the vibrant 1.4" AMOLED colour display.
  • Dive Readiness Tool: Utilize Garmin's innovative dive readiness tool to assess lifestyle factors like sleep, exercise, stress, and jet lag, ensuring you're prepared for each dive.
  • Built-in LED Flashlight: Stay visible and illuminate your surroundings above or below water with the built-in LED flashlight. (Only 51mm)
  • Air Integration: Pair with Descent™ T2 transceivers for integrated pressure monitoring on up to 8 tanks through the SubWave sonar data network.
  • Garmin Dive App: Store, review, and share dive data through the Garmin Dive™ smartphone app, offering a comprehensive dive log and gear tracking.

Garmin Descent MK3i Dive Computer Health and Fitness Features:

  • Sports Apps: Choose from a variety of preloaded activity profiles for activities like trail running, swimming, biking, skiing, and more.
  • VO2 Max and Recovery Time: Monitor your fitness level, track changes over time, and know how long you need to recover before your next high-effort workout.
  • Wrist-Based Heart Rate: Constantly sample your heart rate to gauge your effort during activities.
  • Pulse Ox Sensor: Track blood oxygen saturation to gain awareness of your body's adaptation to altitude.
  • Sleep Monitoring and Sleep Score: Understand your body's recovery with detailed insights into sleep stages and overall sleep quality.

    Garmin Descent MK3i Dive Computer Navigation and Orientation Features:

    • Satiq™ Technology: Enjoy superior positioning accuracy with multi-band GPS while optimizing battery life.
    • Multicontinent Topo Maps: Stay on track with preloaded TopoActive maps from around the world.
    • Connected Lifestyle Features: Enhance your daily life with safety and tracking features, music streaming, Garmin Pay™ contactless payments, smart notifications, and access to the Connect IQ™ Store for additional apps and customizations.

    Discover a new dimension to your diving and active lifestyle with our feature-packed dive computer and smartwatch. 

    Scuba Diving Masks from Oyster Diving


    on orders over £100
    Thermal Protection for adventure

    Fourth Element

    Fourth Element is dedicated to making the best gear for your adventures, from award winning drysuits and wetsuits to swimwear and rash guards.