Garmin Descent Mk3i Wrist Dive Computer
- Choose from multiple dive modes
- Up to 30 hours of battery life in dive mode
- Diveview color maps with depth contours and dive sites
- Share and review dives in the Garmin Dive smartphone app
- Use the dive readiness tool to inform your preparation
- Deepen your confidence with a 200-meter dive rating
This advanced dive computer and smartwatch, sized for smaller wrists, 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.
Features
- Features a stunning AMOLED (active-matrix organic light-emitting diode) display with scratch-resistant sapphire lens
- 51 mm size features a 1.4 in. AMOLED display, 51 mm titanium bezel and optional titanium bracelet
- 43 mm size features a stunning 1.2 in. AMOLED display and 43 mm stainless steel bezel; sized for smaller wrists
- Dive-first design with 200-meter dive-rated case, metal leakproof inductive buttons and multiple dive modes for recreational to technical scuba diving and freediving
- Enhanced SubWave sonar technology provides the ability to exchange preset diver-to-diver messages up to 30 meters (available with software v.15.70 or later)
- Also supports monitoring of tank pressures and depth for up to 8 networked divers, within a range of 10 meters, when paired with the Descent T2 transceiver (not included)
- DiveView maps offer bathymetric depth contours and more than 4,000 dive sites to help you find where to dive and get oriented
- Multi-band GPS technology provides superior positional accuracy while you're on the surface, letting you mark your entry and exit points; GPS tracking does not work underwater
- Built-in ABC sensors—including a 3-axis underwater compass—help navigate every part of your dive from entry to exit
- Dive logs lets you store and review data from up to 200 dives right on your wrist
- Dive logs automatically sync with the Garmin Dive app on your compatible smartphone, allowing you to share and review data, track gear, post photos, take notes and more
- 51 mm size has an LED flashlight for visibility in low-light conditions—above or below water—bright, steady beam in red or white light; variable intensities; strobe modes
- This dive computer is designed to help maximize your preparation for the physical and mental challenges of diving
- Dive readiness tool, developed by Garmin, shows how lifestyle factors such as sleep, exercise, stress and jet lag can affect your body's overall preparedness for diving
- This helps you make better-informed dive plan decisions (data presented is intended to be a close estimation of metrics tracked)
- Built-in sports apps help support your active lifestyle, offering fitness and training features that provide actionable insights for building strength and endurance
- When you're ashore, the Descent Mk3i supports Garmin Pay contactless payments, music storage and smart notifications to keep you connected; compatible smartphone required
- Get 24/7 health and wellness monitoring with wrist-based heart rate, advanced sleep monitoring, respiration tracking, Pulse Ox and more
- This is not a medical device, and data presented is intended to be a close estimation of metrics tracked; Pulse Ox not available in all countries
- 51 mm battery performance: up to 25 days in smartwatch mode and up to 66 hours in dive mode so you can dive without worrying about battery life and go longer between recharges
- 43 mm battery performance: up to 10 days in smartwatch mode and up to 30 hours in dive mode so you can dive without worrying about battery life and go longer between recharges
Technical Specs
Best Use |
Scuba Diving |
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Average Battery Life |
51 MM: Smartwatch: up to 25 days; Battery saver watch mode: up to 31 days; GPS only: up to 76 hours ; All satellite systems: up to 55 hours; Dive mode: up to 66 hours 43 MM: Smartwatch: up to 10 days; Battery saver watch mode: up to 12 days; GPS only: up to 28 hours; All satellite systems: up to 20 hours; Dive mode: up to 30 hours |
Battery Type |
Lithium Ion |
Display Size |
51 MM: 1.4 inches 43 MM: 1.2 inches |
Illumination |
Luminous Face |
Altimeter |
Pressure-based |
Compass |
Yes |
GPS/Satellite Detectable |
Yes |
HRM Included/Integrated |
Yes |
Heart Rate Sensor Type |
Wrist-based |
Average Heart Rate |
Yes |
Pulse Oximeter |
Yes |
Heart Rate Target Zone(s) |
Yes |
VO2 Max Estimate |
Yes |
Recovery Advising |
Yes |
Tracks Steps |
Yes |
Pedometer Type |
Digital 3-axis Accelerometer |
Pace Alert |
Yes |
Interval Training |
Yes |
Tracks Calories Burned |
Yes |
Water-Resistant Depth |
200 meters |
Pool Lap Recognition |
Yes |
Stroke Recognition |
Yes |
Sleep Tracking |
Yes |
Alarm |
Yes |
Time Display |
Yes |
Stopwatch |
Yes |
Visual Map Display |
Yes |
Basemap |
Yes |
Preloaded Map |
Road / Topo |
Programmable Routes |
Yes |
Number of Routes |
50 |
Number of Waypoints |
500 |
Customization |
Apps Data Fields Watch Faces Widgets |
Smart Device Notifications |
Yes |
Data Exchange |
ANT+ Bluetooth |
Compatible Fitness Accessories |
Heart Rate Monitor Cadence Sensor Power Meter |
Gender |
Unisex |
51 mm average battery life:
- Smartwatch: up to 25 days (10 days always-on)
- Battery saver watch mode: up to 31 days
- GPS only: up to 76 hours (56 hours always-on )
- All satellite systems: up to 55 hours (43 hours always-on)
- All satellite systems + multi-band: up to 48 hours (38 hours always-on)
- All satellite systems + music: up to 17 hours
- Max battery GPS: up to 118 hours
- Expedition GPS: up to 24 days
- Dive mode: up to 66 hours
- Dive mode with air integration: up to 40 hours
43 mm average battery life:
- Smartwatch: up to 10 days (4 days always-on)
- Battery saver watch mode: up to 12 days
- GPS only: up to 28 hours (22 hours always-on )
- All satellite systems: up to 20 hours (16 hours always-on)
- All satellite systems + multi-band: up to 17 hours (14 hours always-on)
- All satellite systems + music: up to 6 hours
- Max battery GPS: up to 44 hours
- Expedition GPS: up to 10 days
- Dive mode: up to 30 hours
- Dive mode with air integration: up to 15 hours
Brand | Garmin |
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