Product Description

Garmin Dive Computer Smartwatch | Model Descent™ Mk3i  | Case Size 51mm | 1.4” AMOLED Display | 200m Dive Rating | Dive Mode Battery Up-To 66hr

DESCRIPTION

The Garmin Descent™ Mk3i – 51MM is a premium air-integrated dive computer and smartwatch designed for serious divers. With sonar-based diver communication, multi-tank tracking, and dive readiness analysis, it redefines underwater exploration.

Featuring a bright 1.4” AMOLED display, sapphire crystal lens, and a rugged DLC-coated titanium bezel, the Mk3i is built for the deep with a 200-meter dive rating. Preloaded DIVEVIEW™ maps provide bathymetric depth contours and dive site locations, while customizable dive screens let you personalize your underwater data display.

With Garmin's multisport functionality, the Mk3i transitions seamlessly from diving to trail running, skiing, cycling, surfing, and more. The built-in LED flashlight, turn-by-turn navigation, and VO2 max tracking enhance everyday usability. Garmin Pay™, music storage, and safety tracking keep you connected above and below water.

With up to 66 hours of battery life in dive mode and 76 hours in GPS mode, the Mk3i is engineered for endurance.

Key Features

Advanced Dive Technology

• SubWave™ Sonar Integration: Monitor tank pressure and depth for up to 8 divers (with Descent T2, sold separately).
• Diver Messaging: Preset diver-to-diver communication up to 30m (via software update).
• Multiple Dive Modes: Includes nitrox, trimix, gauge, apnea, apnea hunt, and CCR modes.
• Dive Readiness Tool: Analyzes stress, sleep, and recovery for optimized dive prep.
• DiveView™ Maps: Color bathymetric maps with over 4,000 preloaded dive sites.
• Surface GPS Tracking: Logs entry/exit points with multi-GNSS support.
• Big Numbers Mode & Variometer: Enhanced readability and feedback for freediving.
• Built-in Dive Compass & Tide Data
• Lume Mode: Auto-dimming green glow for better night visibility.
• Dive Log & Garmin Dive™ App Sync: Store, review, and share dives.

Multisport & Outdoor Performance

• Built-in Sports Apps: Running, biking, HIIT, swimming, skiing, golfing & more.
• Backcountry Ski/Snowboard Mode: Tracks ascent/descent and effort data.
• Surfline® Sessions Integration: Record and review surf activity.
• VO2 Max, Endurance & Hill Score Metrics
• Animated & Suggested Workouts + Garmin Coach

Navigation & Maps

• Multi-band GNSS with SatIQ™: High-accuracy tracking and optimized battery.
• TopoActive & SkiView™ Maps: Worldwide topographical and ski resort data.
• ABC Sensors: Altimeter, barometer, 3-axis compass.
• PacePro™ & Turn-by-Turn Routing: Optimized pacing and route navigation.

Smart & Lifestyle Features

• Built-in LED Flashlight: Adjustable brightness and strobe patterns.
• Garmin Pay™: Contactless payments at compatible locations.
• Music Storage: Up to 2,000 songs, supports Spotify®, Deezer & Amazon Music.
• Smart Notifications: Receive calls, messages, and alerts.
• Safety Features: Incident detection and live location sharing.
• Connect IQ™ Store: Customize with apps, faces, and data fields.

Health & Recovery Monitoring

• Wrist-based Heart Rate & Pulse Ox Sensor
• Jet Lag Adviser & Sleep Tracking with Sleep Score
• Recovery Time Advisor & Daily Fitness Suggestions
• Hydration, Stress & Respiration Tracking

Detailed Specifications

Manuals & Documents

General Warranty Info:

• Ripping It Outdoors works closely with our manufacturers to supply and support your products warranty needs as best as possible!
• The majority of products come with a manufacturer represented warranty against manufacturing defects for at least a 12 month period after the date of sale. 
• Expendable components and "wear parts" including but not limited to blades, knives, teeth, oil, chain sprockets, skid shoes, knife mounting discs, and similar components are usually excluded from manufacturer warranties.
• Please reach out to us for any specific warranty information needed about products and parts you can’t find!

Videos

Shipping

General Shipping Info:

• Instantly calculate shipping quotes to the lower 48 states by 1. adding this product to your cart, 2. click continue to the checkout page and 3. enter your shipping address to check rates. Contact us for quotes for shipping to Hawaii, Alaska, Canada, Mexico and Internationally.
• Complimentary lift gate service on all freight shipments where it’s possible. We guarantee safe delivery!
• Low shipping rates for customers. We have negotiated the best possible rates for customers from our trusted carriers (ODFL, ESTES, UPS, and FedEx).
• Negotiate shipping rates if you think we can do better please reach out. Keep in mind some shipping rates also include assembly & configuration as well!