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Garmin Descent™ Mk3i – 43mm Titanium Dive Computer with Silicone Band + Descent T2 Transceiver (Option)

Garmin Descent™ Mk3i – 43mm Titanium Dive Computer with Silicone Band + Descent T2 Transceiver (Option)

Regular price $2,399.00 AUD
Regular price $2,499.00 AUD Sale price $2,399.00 AUD
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The Descent Mk3 series comes in two sizes – 43mm and 51mm (so effectively the same rough sizes as the Descent MK2/MK2i and the MK2S) – with air integration options on both, and features a bright touchscreen AMOLED display, a 200m dive-rated case with metal leakproof buttons that are fully operational at that depth, and up to 48 hours of battery life in dive mode.

The 51mm Descent Mk3i also comes with a built-in LED flashlight for greater visibility in low-light conditions – even underwater.

When paired with the Descent T2 transceiver, divers will be able to send out assistance alerts to other connected divers, and exchange preset messages with other divers up to 30 metres away on a soon-to-be-released software update.

Designed by divers for divers, the Descent Mk3 series is ready for the next excursion with dive modes for single and multiple gas dives (including nitrox and trimix), gauge, apnea, apnea hunt and closed-circuit rebreather.

 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.


*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.

*Dive Modes - Get multiple dive modes for single and multiple gas dives (including nitrox and trimix), gauge, apnea, apnea hunt and closed-circuit rebreather.

*Diveview Maps - Colour maps on your wrist offer bathymetric depth contours and more than 4,000 dive sites to help you discover new places to dive and get oriented.

*Dive Focused Design - With its bright 1.4″ AMOLED color display, sapphire lens, 200-meter dive-rated case and leakproof metal inductive buttons, this watch is built to go deep.

  • Diver Assistance (coming soon): If a diver is in need of help, this revolutionary tool will let them request assistance right from their watch thanks to enhanced SubWave sonar technology. When using a Descent Mk3i dive computer and Descent T2 transceiver, divers will be able to send out an assistance alert to other connected divers. Nearby connected divers will then be able to see the diver’s depth and distance and monitor them until assistance is no longer required.
  • Diver-to-diver messaging (coming soon): Using SubWave technology,divers with a Descent Mk3i and Descent T2 transceiver will be able to exchange preset messages with other connected divers, up to 30 meters away3.
  • Dive group tracking: Using air integration, keep track of where other divers are in the group. See depth and tank pressure of up to eight divers who are using a Descent T2 transceiver, up to 10 meters away.
  • Dive-focused design: A 200-meter dive-rated case with a strong, scratch resistant sapphire lens operates at twice the depth of the previous generations and features metal buttons that are leakproof and fully functional at 200 meters. Plus, a bright touchscreen AMOLED display provides greater visibility—even underwater.
  • Built-in LED flashlight: Available on the 51mm Descent Mk3i, an integrated LED flashlight with built-in strobe mode gives divers greater visibility in low-light conditions, above or below the water.
  • Dive readiness: See how lifestyle factors like sleep, exercise, stress and jet lag can affect the body’s overall preparedness to dive. A higher readiness score may suggest it’s time to dive in while a lower score may be reason to consider using a higher conservatism setting or choose an easier dive.


Store and review data, track gear, take notes — and share via the Garmin Dive™ smartphone app.

See and be seen with variable light intensities and strobe modes, in or out of the water.

Stay in the water longer with up to 66 hours in dive mode plus up to 25 days in smartwatch mode.

Add additional screens for each dive mode that features the fields you want to see.

To aid readability and help maintain night vision, an ambient light sensor gives a green luminescence to your watch face in low-light conditions.

Built-in ABC sensors, including an underwater compass, help navigate every part of your dive.

Track your entry and exit points on the surface with advanced satellite connectivity.

Pair the app with your Descent dive computer to automatically sync and upload your dive logs.

Use this GPS tool for surface navigation to a dive site, so you can drop right onto your target every time.

This tool helps you monitor your freedive descent and ascent rates through tone and vibration feedback.

Get a simplified dive screen on your wrist, with larger text to see critical diving data.

Stay up to date on ocean conditions by pairing your Descent dive computer with your compatible smartphone.

Pair with inReach devices and the inReach dive case for satellite messaging off-grid.

If you feel unsafe or if your watch senses that an incident occurred, your watch will send a message with your live location.

Download songs and playlists from your Spotify, Deezer or Amazon Music accounts for phone-free listening.

Breeze through checkout lines or transit systems with participating providers.

Receive emails, texts and alerts on your watch when paired with your iPhone® or Android™ smartphone.

Add watch faces, data fields and apps to your paired smartwatch.



Every breath, every tank, every buddy on your dive — track them all on your wrist when you pair the Descent T2 transceiver with your compatible air-integrated Descent™ dive computer1.

Enhanced SubWave™ sonar technology lets you monitor up to 8 tanks when under water — viewing air pressure, depth, use rate and time remaining — for multiple types of diving. Plus, you can even communicate via preformatted messages (coming soon) with other networked buddies wearing their Descent™ Mk3i dive computers.

Dive with added confidence and situational awareness.

Deep Dive Rated

Built to withstand the elements, the Descent T2 transceiver is dive-rated to 20 ATM (200 meters) — so you can dive deeper without worry.

Know Your Tank

Get tank pressure, air time remaining, air consumption rate and battery remaining — all sent directly to your paired air-integrated Descent dive computer1.

Link Multiple Divers

See your dive buddies' tank pressures and depths at a glance. Pair up to 8 transceivers on your group’s tanks with each compatible air-integrated dive computer1 within a range of up to 10 meters.

Diver Messaging

Exchange preformatted diver-to-diver messages with other Descent T2 transceiver-networked buddies wearing Descent Mk3i dive computers up to 30 meters away (coming soon).

Easy Tank ID

A simplified pairing process using wireless area networking makes it easy to identify your buddies’ names with the Descent T2 tank transceivers they’re wearing.

Descent T2 sold separately.



  • Swallowing may lead to serious injury in as little as 2 hours or death, due to chemical burns and potential perforation of the esophagus.
  • If you suspect your child has swallowed or inserted a button battery immediately call the 24-hour Poisons Information Centre on 13 11 26 for fast, expert advice.
  • Examine devices and make sure the battery compartment is correctly secured, e.g. that the screw or other mechanical fastener is tightened. Do not use if the compartment is not secure.
  • Dispose of used button batteries immediately and safely. Flat batteries can still be dangerous.
  • Tell others about the risk associated with button batteries and how to keep their children safe.

International Shipping

For all offshore islands and international orders, a member of staff will contact you with a delivery estimate including International freight charges. Please contact customs or your local postal service as your order may be delayed for inspection or duties/taxes may apply which are not paid for by Infinity Dive. This is applicable to all international shipping methods.

Duties and Taxes

International purchases are sold free of Australian GST. However, depending on which country the items will be dispatched to, there may be additional taxes or import duties imposed at the receivers end. Infinity Dive is not liable for these charges and it is up to the customer to liaise with the Customs regarding their delivery.

Out Of Stock Policy

We will get in touch with you if the product was out of stock.

If the product was out of stock in the entire Australia, the delivery time may over 2 months.

Its depends on the ETA provided by the Brand Agent.

Cancellation Policy

Order cancellation
We move fast to get our orders packed and dispatched as fast as possible. If your order hasn't already been dispatched, we should be able to cancel your order.
  • Please note that some orders may not be able to be changed or cancelled once the order has been accepted by infinitydive.
  • If you need to cancel an online order that has not yet been shipped, please contact us.
  • No order shall be binding until it is accepted by InfinityDive. An individual contract for the supply of Products, on these policies, is formed on acceptance by InfinityDive of an order from the Customer.
  • InfinityDive reserves the right to accept any order in whole or in part. Where we makes a part delivery of any order, such delivery shall constitute a separate contract. No order may be cancelled or varied after acceptance by InfinityDive.

In-store pickup policy

In Store Pick up orders will be available for collection in store for a period of 1 month if the product is in stock;  if the order isn’t collected by this point, $10/day storage fees may apply unless a prior arrangement is made with InfinityDive.
Trip / Event cancellation policy
No refund for cancel request made less than 24 hours.
      Courses cancellation policy
        1. There will be a payment deadline announcement to all participants, no late fee will be accepted.
        2. If you cancel or transfer your course due to personal reasons, you need to pay an administration fee starting from $98, which will incur within the paid fee.
        3. If the new course is of a higher value than the original booking, the difference must also be paid. No exceptions.
        4. If special circumstances or ocean conditions cause the necessary cancel on activities of the day, our students or participants who paid will get the fee convey into credit point. No direct cash return.
        5. If any paid fees are cancelled after 14 days due to personal reasons, the full payment will be converted into company credit points. If cancelled 7 days before departure, fee will refund by 50% deducting from the conversion payment company credit points. If the payment is made within seven days before departure, there will be no refund.
        6. Before payment for any activity or course, the company reserves the right to change the price, and participants must take the initiative to confirm the relevant changes.
        7. If an emergency medical condition manifests within 24hrs of your course start time, proof must be provided in order to transfer your course at a reduced rate depending on the case.
        8. If you have indicated yes to any of the questions on our dive conditional from, then one will need to be provided at the time of booking or 14 days prior to the course start date. Once you are fit to dive unconditionally, cancellation procedure will apply the above conditions. Failure to do so will result in forfeit of the course and rebooking will be at full cost.

        Special Conditions

        Special circumstances will deal in case-by-case manner as such medical conditions, verbal instructions, unconditional payment, etc.

        Credit points

        The credit points of the company after the refund can be purchased for any consumption within the company, and it will take effect forever indefinitely.



      Please note: Due to lighting and monitors,the items colours may be slightly on the error with the pictures.
      We ensure that we provide the style and the picture is the same.

      Infinity Dive do not reponsible for any custom duty or import tax.

      Thank you very much for your understanding!

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