• Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
  • Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
  • Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
  • Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
  • Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
  • Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
  • Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
  • Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
  • Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
  • Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
  • Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
  • Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
  • Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)
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Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)

Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)

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£995.00
£995.00 £1,540.00
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Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)

Garmin Descent Mk3i 51mm Dive Computer – Carbon Grey DLC Titanium Bezel & Band (Air Integration)

£995.00
£995.00 £1,540.00
SAVE 35% Sold out

Garmin Descent Mk3i 51mm: Advanced Dive Computer & Multisport Smartwatch

Experience the pinnacle of underwater technology with the Garmin Descent Mk3i 51mm. Engineered for professional divers and elite athletes, this premium dive computer features revolutionary SubWave™ sonar-based communication, advanced air integration, and a rugged 200-metre dive-rated design. Whether you are exploring deep-sea wrecks or training for a triathlon, the Descent Mk3i offers unparalleled performance with its vibrant 1.4-inch AMOLED display and sapphire crystal lens.

Key Features for Divers & Explorers

  • SubWave™ Sonar Technology: Exchange messages and monitor tank pressure for up to eight divers.
  • Comprehensive Dive Modes: Supports Single Gas, Multi-Gas, Nitrox, Trimix, CCR, and Freediving.
  • DiveView™ Maps: Navigate with preloaded bathymetric maps covering over 4,000 global dive sites.
  • Dive Readiness Tool: Assess your physical preparedness based on sleep, stress, and recovery metrics.
  • Built-in LED Flashlight: Enhanced visibility for night dives and low-light conditions.
  • Advanced Health Tracking: Monitor heart rate, Pulse Ox, VO2 Max, and recovery time.
  • Rugged Durability: 200m water rating with leakproof metal inductive buttons.

Beyond the water, the Descent Mk3i functions as a high-end multisport GPS smartwatch, offering offline music storage, Garmin Pay™ contactless payments, and dedicated activity profiles for running, cycling, hiking, and more. Stay connected and safe with incident detection and inReach® satellite compatibility. Elevate your adventure with the ultimate all-in-one dive computer.

Tags: Garmin Descent Mk3i, Dive Computer, Scuba Diving Gear, Multisport Smartwatch, Underwater Navigation

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Garmin Descent Mk3i dive smartwatch worn on the wrist by the water
Garmin Descent Mk3i · 51mm

GO DEEPER.
STAY READY.

A watch-style dive computer built for serious water — air integration, SubWave sonar and DiveView maps on a brilliant AMOLED screen, in a 200m-rated titanium case you can wear every day.

200m rated Air integration Sapphire · DLC Ti
Built for the dive
SERIOUS TECH, ONE WRIST
Air integration, on your wrist
Pair with Descent T2 transceivers (sold separately) for real-time tank pressure, gas-consumption rate and remaining air time — no reaching for a gauge.
SubWave sonar messaging
Exchange preset messages and see the depth and tank pressure of your dive group underwater — stay in touch with your buddies without surfacing.
DiveView maps
Colour maps with thousands of dive sites to plan and navigate.
Multi-gas modes
Air, nitrox, trimix, CCR and apnea, on the Bühlmann ZHL-16C algorithm.
Built-in LED flashlight
A dedicated light with strobe for low-light and night dives.
200mDive rating
66hrDive battery
1.4"AMOLED display
SapphireLens
TiDLC bezel
Air integration requires Descent T2 transceivers, sold separately. Specifications are Garmin's published figures for the 51mm model.
In the wild

SEEN ON EVERY ADVENTURE

From the dive boat to the daily commute — the Garmin Descent Mk3i, out where it belongs.

Garmin dive watch in useGarmin
Garmin dive watch in useGarmin
Garmin dive watch in useGarmin
Garmin dive watch in useGarmin
Garmin dive watch in useGarmin
Garmin dive watch in useGarmin
Garmin dive watch in useGarmin
Garmin dive watch in useGarmin
Garmin dive watch in useGarmin
Garmin dive watch in useGarmin
Garmin dive watch in useGarmin
Garmin dive watch in useGarmin
Everything included

WHAT'S IN THE BOX

7 items included
×1
Descent Mk3i 51mm
Carbon Grey DLC titanium dive computer with matching DLC titanium band.
×1
Silicone QuickFit 26 band
Standard-length black silicone strap for everyday wear.
×1
Extra-long adjustment strap
Fits over thick exposure suits and drysuits.
×1
Descent T2 transceiver
Wireless air integration — real-time tank pressure & SubWave sonar.
×1
Charging / data cable
For charging and syncing your dives to Garmin Connect.
×1
USB-C to clip
Magnetic charging clip that connects to the device contacts.
×1
Quick-start guide
Get set up and into the water in minutes.
✦
Brand new & sealed
Every unit ships factory-fresh in its original packaging.
Note: the Descent T2 transceiver is included with this Carbon Grey DLC Titanium bundle. Air integration monitors up to 8 tanks when paired with additional T2 transceivers, sold separately.
Top prices and exclusive offers — for a limited time only.
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