Home › Shop ›Dive Computers & Transmitters ›Garmin Descent™ Mk3i

Garmin Descent™ Mk3i

Garmin Descent™ Mk3i

4.9 from 1100+ reviews

$2,499.00

  • Free shipping on orders over $150
  • Local pickup available at Bondi store
  • 30-day returns on unused items

Size43mm

51mm43mm

StrapCarbon grey DLC titanium with black silicone band

Carbon grey DLC titanium with black silicone bandCarbon grey DLC titanium with DLC titanium bandSilver and black PVD titanium with black/pebble greyBronze PVD titanium with French grey silicone band
  • Set up and explained in store before your first dive
  • Nitrox, deco and gas-switching as you progress
  • Air-integration options with matching transmitters
  • Shearwater, Garmin and Suunto — brands we dive ourselves
Description

DISCOVER A DEEPER CONNECTION

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.


Available in 51mm and 43mm.


SUBWAVE SONAR-BASED DIVER MESSAGING



UP TO 66 HOURS OF BATTERY LIFE IN DIVE MODE

CHOOSE FROM MULTIPLE DIVE MODES

DIVEVIEW™ COLOUR MAPS WITH DEPTH CONTOURS AND DIVE SITES

USE THE DIVE READINESS TOOL TO INFORM YOUR PREPARATION

BUILT-IN LED FLASHLIGHT WORKS ABOVE OR BELOW WATER


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) up to 30 meters as well as monitor tank pressures and depth for up to 8 divers within a range of 10 metres1.


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.

Shipping
Free shipping on orders over $150. Local pickup available at Bondi Beach. International shipping calculated at checkout.
Returns
30-day return policy on unused items in original packaging. Custom-fitted gear is non-returnable.
Don't forget Garmin Descent™ T2 Transmitter $899.00
Garmin Descent™ Mk3i

The one thing you'll wear on every single dive

Your computer is the piece of kit you use most and think about least. It's worth buying one that still suits you in three years — nitrox now, decompression and gas switching later, without having to replace it when your diving grows.

We stock Shearwater, Garmin and Suunto because they're what our instructors and technical divers actually wear. Screens that stay readable when visibility drops, batteries that last, and logbooks that sync without a fight.

Buy it here and we'll set it up with you before you leave — conservatism, gas mixes, alarms, and pairing your transmitter — so your first dive with it isn't spent reading a manual on the boat.

Top Picks

View All
Staff PickHalcyon H-75P First Stage Regulator

Halcyon H-75P First Stage Regulator

$630.00
Staff PickCressi Musa Explorer MSF Set

Cressi Musa Explorer MSF Set

$129.95
Staff PickHalcyon Vector Pro Fins

Halcyon Vector Pro Fins

$459.00
Staff PickCressi Epsilon Dry Snorkel

Cressi Epsilon Dry Snorkel

$79.95
Staff PickHalcyon Tech Dive Shorts

Halcyon Tech Dive Shorts

$340.00
Staff PickCressi Logica Man 8/7mm Black Wetsuit

Cressi Logica Man 8/7mm Black Wetsuit

$849.00
Staff PickHalcyon Halo Second Stage Regulator

Halcyon Halo Second Stage Regulator

$695.00
Staff PickHalcyon Single Cylinder System

Halcyon Single Cylinder System

$1,400.00
Staff PickSuunto Ocean

Suunto Ocean

$1,499.00
Staff PickDive Lantern Beacon 2000

Dive Lantern Beacon 2000

$249.00
Staff PickCressi Z2 Mask

Cressi Z2 Mask

$139.00
Staff PickFourth Element Seeker Mask

Fourth Element Seeker Mask

$259.00
Staff PickFourth Element Xenos Arc 7mm Men's Wetsuit

Fourth Element Xenos Arc 7mm Men's Wetsuit

$834.00
Staff PickCressi Agua Fins

Cressi Agua Fins

$0.00

Our Client reviews

Hear from customers who have shopped with us.

4.9

Based on 1100+ reviews

Write A Review

Loading review…

—

Loading review…

—

Loading review…

—

Frequently Asked Questions

Find answers to common questions about our gear, courses, and policies.

Which computer should I buy?

Buy one that will still suit you in three years — nitrox now, decompression and gas switching later. Replacing a computer because your diving grew is an expensive way to learn that lesson. We stock Shearwater, Garmin and Suunto because they are what our instructors and technical divers actually wear.

Do I need air integration?

It is convenient rather than essential — it puts your cylinder pressure on the same screen as your depth and time. If you want it, the transmitter has to match the computer's brand, so it is worth deciding before you buy rather than after.

Will you set it up for me?

Yes. Buy it here and we will set it up with you before you leave — conservatism, gas mixes, alarms and pairing your transmitter — so your first dive with it is not spent reading a manual on the boat.

Will it still work as I move into technical diving?

That depends on the model. Shearwater computers handle trimix and closed circuit; most entry-level recreational computers do not. Tell us where you want your diving to go and we will steer you to one that gets there with you.

Fast delivery and convenient online shop

Modern technologies and materials

Comfortable to use anytime

Flexible return policy and warranty