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Garmin

Garmin Descent Mk3i 43mm Dive Computer

$1,399.99
Color: Bronze PVD Titanium
Style: Watch Only

FREE 2-day delivery is available on this item

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60-Day Money Back Return Policy 60-Day Money
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Limited Warranty 2 year coverage Limited
Warranty 2
Year Coverage

Description



Step into a world of underwater adventure with the Garmin Descent Mk3i, a dive computer designed to elevate your exploration beneath the waves. This innovative device features a striking 1.2-inch AMOLED display, elegantly encased in a durable 43 mm stainless steel bezel, making it not only robust but also stylish for everyday wear. Whether you're a casual snorkeler or a serious scuba diver, its dive-rated case ensures you can go to depths of 200 meters with confidence.

Equipped with cutting-edge SubWave sonar technology, the Mk3i allows you to communicate with fellow divers up to 30 meters away, enhancing your experience and teamwork during group dives. You also have the ability to monitor tank pressures and depth for up to eight divers when paired with the Descent T2 transceiver (sold separately). Navigate easily using the built-in and easy to read compass, making the Mk3i an indispensable tool for safety and exploration.

Health and wellness tracking add an extra layer of functionality. It continually monitors your heart rate, sleep quality, and other metrics, allowing you to stay informed about your body's readiness to dive. Coupled with smart notifications and music storage, you can seamlessly connect with your digital life while submerged in your aquatic one. Transform each dive into an unforgettable experience with the Garmin Descent Mk3i!

What's Included?

  • Garmin Descent Mk3i 43mm Dive Computer
  • Silicone wrist band
  • Charging cable

Your Dive, Our Priority

Get support from passionate diving experts dedicated to going the extra mile for you.

  • Troubleshooting a product issue
  • Finding the right setup for your dive
  • Installing components

Dive Modes

Recreational Scuba

Recreational Scuba

With Buehlmann ZHL-16c algorithm, supporting single gas or multi-gas for NDL and decompression diving.

Apnea / Freedive Mode

Apnea / Freedive Mode

Dedicated apnea tracking with high-frequency depth and surface interval sampling, recording freediving sessions separately from scuba dives.

Technical Scuba

Technical Scuba

Nitrox and Trimix support, closed circuit rebreather (CCR), gas mixes (air, Nitrox, Trimix, up to 100% O2; 1 bottom gas & up to 11 deco and/or backup gases), PO2 up to 2.0 with customized deco PO2 setting.

Recreational Scuba

Recreational Scuba

With Buehlmann ZHL-16c algorithm, supporting single gas or multi-gas for NDL and decompression diving.

Apnea / Freedive Mode

Apnea / Freedive Mode

Dedicated apnea tracking with high-frequency depth and surface interval sampling, recording freediving sessions separately from scuba dives.

Technical Scuba

Technical Scuba

Nitrox and Trimix support, closed circuit rebreather (CCR), gas mixes (air, Nitrox, Trimix, up to 100% O2; 1 bottom gas & up to 11 deco and/or backup gases), PO2 up to 2.0 with customized deco PO2 setting.

Product Features

SubWave Sonar Diver Messaging

SubWave Sonar Diver Messaging

Send text messages to fellow divers up to 30 meters underwater via SubWave sonar technology - a revolutionary underwater communication feature.

Multi-Tank Air Integration

Multi-Tank Air Integration

Monitor tank pressures for up to 8 divers simultaneously when paired with Descent T2 transceivers - ideal for group diving and dive masters.

Built-in LED Flashlight

Built-in LED Flashlight

Integrated variable-intensity LED flashlight with strobe mode provides illumination for night dives, low-visibility conditions, and underwater navigation.

Dive Readiness & Full Health Suite

Dive Readiness & Full Health Suite

Proprietary Dive Readiness tool plus full smartwatch health: wrist heart rate, Body Battery, advanced sleep, and stress monitoring.

SubWave Sonar Diver Messaging

SubWave Sonar Diver Messaging

Send text messages to fellow divers up to 30 meters underwater via SubWave sonar technology - a revolutionary underwater communication feature.

Multi-Tank Air Integration

Multi-Tank Air Integration

Monitor tank pressures for up to 8 divers simultaneously when paired with Descent T2 transceivers - ideal for group diving and dive masters.

Built-in LED Flashlight

Built-in LED Flashlight

Integrated variable-intensity LED flashlight with strobe mode provides illumination for night dives, low-visibility conditions, and underwater navigation.

Dive Readiness & Full Health Suite

Dive Readiness & Full Health Suite

Proprietary Dive Readiness tool plus full smartwatch health: wrist heart rate, Body Battery, advanced sleep, and stress monitoring.

Product Details

Specifications
Algorithm Buehlmann ZHL-16c
Dive Modes Single Gas, Multi-Gas, Apnea/Freedive, Gauge, Nitrox, Trimix, CCR
Depth Rating 200 m / 656 ft
Display 1.2 inch AMOLED
Lens Sapphire crystal
Case Metal (titanium or stainless)
SubWave Sonar Yes (messaging, 30 m)
Air Integration Yes (T2 transceiver, up to 8 divers)
LED Flashlight Yes (variable + strobe)
Dive Sites 4,000+
Bathymetric Maps Yes
Dive Readiness Yes
Nitrox Yes
Logbook Yes
Bluetooth Yes
ANT+ Yes
GPS Yes
Compass Yes
Altimeter Barometric
Heart Rate Wrist optical
Battery (Dive) ~40 h
Battery (Watch) ~14 days
Battery Rechargeable Li-ion
Case Size 43 mm
SKU 010-02752-00 (stainless) / 010-02752-13 (titanium)
User Guide
Shipping & Returns
  • Free standard shipping on orders over $50
  • Free 2-day shipping on orders over $300
  • Standard Ground delivery in 3–5 business days
  • Most orders process within 1 business day
  • Free returns within 60 days — buyer covers return shipping unless it's our error
  • Free return shipping on exchanges

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Questions? Email info@sbaquatics.com or see our full Shipping & Returns Policy.

Reviews

Frequently Asked Questions?

What makes the Mk3i different from the standard Mk3?

The Mk3i adds three exclusive features: SubWave sonar for underwater diver-to-diver messaging (up to 30 m), native wireless air integration via the T2 transceiver (monitoring up to 8 divers' tank pressures), and a built-in LED flashlight with strobe mode.

How does SubWave sonar communication work?

SubWave sonar converts messages into sound waves that travel through water, allowing Mk3i divers and T2 transceiver users to exchange short text messages up to 30 meters underwater without any radio equipment.

Can the Mk3i monitor multiple divers' tanks?

Yes - when paired with Descent T2 transceivers, the Mk3i can simultaneously display tank pressures and depths for up to 8 divers, making it ideal for dive masters and group diving leaders.

What is the battery life of the Mk3i 43mm?

Approximately 40 hours in dive mode and up to 14 days in smartwatch mode per charge. Charged via the included proprietary magnetic charging cable.

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