The Garmin Descent Mk3i (51mm) is Garmin’s most advanced dive computer, combining professional-grade underwater performance with a premium GPS smartwatch. Built for recreational, technical, and freedivers, the Mk3i delivers unmatched reliability, safety, and functionality — whether you are exploring deep wrecks or training on land.
Featuring a stunning 1.4″ AMOLED display with sapphire crystal lens and titanium bezel, the Descent Mk3i is designed for durability in the harshest dive environments. With a 200-meter dive rating, multiple dive modes including nitrox, trimix, CCR, and apnea, and optional air integration with compatible transmitters, this dive computer provides critical real-time data for safe and confident diving.
SubWave™ sonar technology enables diver-to-diver messaging and enhanced underwater awareness, while DiveView™ maps, built-in compass, and detailed dive logging help you plan, track, and review every dive with precision.
Beyond diving, the Descent Mk3i functions as a full-featured smartwatch with multi-band GPS, health monitoring, training features, and smart notifications — making it the perfect companion for both underwater adventures and everyday wear.
Key Features
- 200m dive-rated professional dive computer
- Supports air, nitrox, trimix, CCR, and freediving modes
- Optional air integration for tank pressure monitoring
- SubWave™ sonar diver messaging capability
- Bright 1.4″ AMOLED display with sapphire crystal lens
- Titanium bezel with rugged premium construction
- Built-in LED flashlight for low-visibility conditions
- DiveView™ maps with depth contours and dive site locations
- Up to 66 hours battery in dive mode
- Multi-band GPS, fitness tracking, and smartwatch features
- Automatic dive log sync with Garmin Dive app
