SubWAVe sonar-based air integration enables wireless tank pressure monitoring for up to 8 tanks, enhancing safety during multi-gas dives
Nitrox and Trimix decompression computer supports advanced diving gases for technical and recreational use
Multi-activity GPS smartwatch provides surface navigation, dive logging, and tracking for all activities
Dive readiness tool integrates lifestyle factors to help divers optimize preparation and confidence
Up to 30 hours of battery life in dive mode ensures extended underwater operation
Summarized by Shop
The Garmin Descent Mk3i is the technical diver's flagship — a full nitrox and trimix decompression dive computer in a multi-activity GPS smartwatch that you'll wear every day. Garmin SubWav technology supports wireless air integration with optional T2 transceivers, so you have tank pressure, deco obligations, and GPS navigation on one dev
Display
1.2-inch AMOLED color display
Case Material
Titanium (premium DLC or bronze PVD finish)
Dive Rating
200 meters
Battery Life
Up to 30 hours in dive mode, up to 10 days in smartwatch mode
Wireless Air Integration
Supports up to 8 tanks with optional T2 transceivers
Surface GPS
Advanced satellite connectivity for tracking entry and exit points