Garmin Descent Mk3i - 43 mm

Air Integration
Pair with Garmin Descent T2 transceivers (sold separately) for integrated pressure monitoring on up to 8 tanks via the SubWave sonar data network.

Subwave Sonar Networking
Exchange preset diver-to-diver messages (coming soon) up to 30 metres as well as monitor tank pressures and depth for up to 8 divers within a range of 10 metres¹.

Dive Readiness Tool
This Garmin first technology shows how lifestyle factors such as sleep, exercise, stress and jet lag can affect your body — to help gauge when you are best prepared to dive.

Dive Modes
Get multiple dive modes for single and multiple gas dives (including nitrox and trimix), gauge, apnea, apnea hunt and closed-circuit rebreather.

Diveview Maps
Colour maps on your wrist offer bathymetric depth contours and more than 4,000 dive sites to help you discover new places to dive and get oriented.

Dive-focused Design
With its bright 1.2″ Amoled colour display, sapphire lens, 200-metre dive-rated case and leakproof metal inductive buttons, this dive computer is built to go deep.

Dive Log
Store and review data, track gear, take notes — and share via the Garmin Dive™ smartphone app.

Long Battery Life
Stay in the water longer with up to 30 hours in dive mode plus up to 10 days in smartwatch mode.

Customisable Dive Modes
Add additional screens for each dive mode that features the fields you want to see.

Lume Mode
To aid readability and help maintain night vision, an ambient light sensor gives a green luminescence to your watch face in low-light conditions.

Dive Compass
Built-in ABC sensors, including an underwater compass, help navigate every part of your dive.

Surface GPS
Track your entry and exit points on the surface with advanced satellite connectivity.

Garmin Dive App
Pair the app with your Descent dive computer to automatically sync and upload your dive logs.

Reference Point
Use this GPS tool for surface navigation to a dive site, so you can drop right onto your target every time.

Variometer
This tool helps you monitor your freedive descent and ascent rates through tone and vibration feedback.

Big Numbers Mode
Get a simplified dive screen on your wrist, with larger text to see critical diving data.

Tide Data
Stay up to date on ocean conditions by pairing your Descent dive computer with your compatible smartphone.

Inreach Device Compatible
Pair with inReach devices² and the inReach dive case for satellite messaging off-grid.

Sports Apps
Use preloaded activity profiles for trail running, swimming, running, biking, hiking, rowing, skiing, golfing and more.

Surf Activity
Record the number of waves surfed, maximum speed reached, distance travelled and more.

Surfline Camera
Create a video of every wave you ride in front of a Surfline camera with Surfline Sessions technology. Use the Surfline widget to see tide, wave height, wind and surf rating for each of the five nearest surf spots³.

Backcountry Ski And Snowboard
Get ascent and descent data along with metrics such as cadence, stride length and grade.

Vo2 Max
See your current fitness level and track changes over time to set goals, evaluate progress and more.

Recovery Time
Know how long you need to recover before your next high-effort workout based on your latest training.

Daily Suggested Workouts
View your entire week of daily suggested workouts which adapt after every run or ride.

Animated Workouts
Follow animated workouts for cardio, strength, yoga and Pilates workouts on the watch screen.

Wrist-based Heart Rate
This dive computer constantly samples your heart rate⁴ to help you gauge how hard you work during activities.

Pulse Ox Sensor
Track your blood oxygen saturation while you’re awake or asleep, and gain awareness of how you’re adapting to altitude⁵.

Jet Lag Adviser
Help to minimise the effects of jet lag with guidance on light exposure, sleep schedule and exercise.

Endurance Score
This measurement uses your VO2 max, training loads and other factors to show how training affects your ability to sustain prolonged physical efforts.

Hill Score
Based on your VO2 max and training history, this feature measures your strength and endurance for running uphill.

Garmin Coach
Train for physical challenges with expert coaching and a dynamic training plan keyed to your goals and performance.

Sleep Monitoring And Sleep Score
Understand your body’s recovery with sleep score, breakdown of your sleep stages and detailed insights for improved sleep quality⁴.

Women’s Health Tracking
Track and log your menstrual cycle or pregnancy to get exercise and nutrition education.

SATIQ Technology
Get superior positioning accuracy with multi-band GPS while optimising battery life.

Multicontinent Topo Maps
Preloaded TopoActive maps from around the world keep your explorations on track.

Skiview Maps
View run names and difficulty ratings for more than 2,000 preloaded ski resorts worldwide.

ABC Sensors
Navigate your next trail with an altimeter, barometer and 3-axis electronic compass.

Pacepro Technology
Plan race-day strategy with GPS-based pace guidance for a selected course or distance.

Courses With Turn-by-turn Directions
Create or find existing courses in the Garmin Connect app, or sync from your favourite third-party platforms, and get turn-by-turn directions.

Round-trip Routing
Enter how far you want to go, and get suggested routes that will bring you back - even use TrendLine routing to find the best local paths.

Safety And Tracking Features
If you feel unsafe or if your watch senses that an incident occurred, your watch will send a message with your live location⁶.

Music
Download songs and playlists from your Spotify, Deezer or Amazon Music accounts for phone-free listening.

Garmin Pay Contactless Payments
Breeze through checkout lines or transit systems with participating providers.

Smart Notifications
Receive emails, texts and alerts on your watch when paired with your iPhone or Android smartphone.

Connect IQ Store
Add watch faces, data fields and apps to your paired smartwatch.
¹Additional equipment (sold separately) and device pairing required.
²Sold separately - active satellite subscription required. Some jurisdictions regulate or prohibit the use of satellite communication devices. It is the responsibility of the user to know and follow all applicable laws in the jurisdictions where the device is intended to be used.
³When paired with the Garmin Connect smart device app and the Surfline smart device app.
⁴Activity tracking and fitness metric accuracy.
⁵This is not a medical device and is not intended for use in the diagnosis or monitoring of any medical condition; see Garmin.com/ataccuracy. Pulse Ox not available in all countries.
⁶When paired with your compatible smartphone. See safety and tracking features requirements and limitations. Feature not available while in dive mode.

• Battery Life (Smartwatch Mode):Up To 10 Days (4 Days Always-on)
• Watch Display Type:Amoled
• Touchscreen    
• Watch Water Rating: Dive (200 Metres)
• Sleep Score And Insights    
• Training Readiness    
• Training Status: Improved
• Daily Suggested Workouts: Improved
• Multi-band Gps    
• Built-in Mapping    
• Garmin Pay   
• Music Storage

Lens Material	Sapphire crystal
Bezel Material	Diamond-like Carbon (DLC) coated titanium
Case Material	Fibre-reinforced polymer with titanium rear cover
Quickfit Watch Band Compatible	Yes (20 mm)
Strap Material	Silicone
Physical Size	43 x 43 x 14.13 mm Fits wrists with the following circumference: Silicone band: 135-230 mm Extra long silicone band: 135-355 mm
Weight	Mk3i w/o bands: 49.3g Mk3i w/ Silicone Band: 68.3g
Leakproof Inductive Buttons	Yes
Display Size	30.4 mm (1.2”) diameter
Display Resolution	390 x 390 pixels
Colour Display	Yes
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
Charging Method	Garmin proprietary clip charger
Mmemorty / History	32 GB

• Time/date    
• Gps Time Sync    
• Automatic Daylight Saving Time    
• Alarm Clock    
• Timer    
• Stopwatch    
• Sunrise/sunset Times

• Wrist-based Heart Rate (Constant, Every Second)    
• Daily Resting Heart Rate    
• Abnormal Heart Rate Alerts (High And Low)
• Respiration Rate (24x7)    
• Pulse Ox Blood Oxygen Saturation    
• Fitness Age (In App)
• Body Battery Energy Monitor    
• All-day Stress    
• Relaxation Breathing Timer    
• Breathwork    
• Sleep (Advanced)
• Hydration (In Garmin Connect)
• Women's Health (In Garmin Connect)
• Health Snapshot    
• Jet Lag Adviser

• GPS   
• Glonass    
• Galileo    
• SATIQ Technology    
• Garmin Elevate Wrist Heart Rate Monitor    
• Pulse Ox Blood Oxygen Saturation Monitor    
• Barometric Altimeter    
• Compass    
• Gyroscope    
• Accelerometer    
• Thermometer    
• Ambient Light Sensor    
• Depth Sensor

Daily Smart Features

• Connectivity: Bluetooth, ANT+, Wi-Fi, Subwave
• Connect IQ (Downloadable Watch Faces, Data Fields, Widgets And Apps)    
• On-device Connect IQ Store    
• Smart Notifications    
• Text Response/reject Phone Call With Text (Android Only)    
• View Images From Notifications On Watch (Android Only)    
• Morning Report    
• Calendar    
• Weather Forecasts    
• Realtime Settings Sync With Garmin Connect Mobile    
• Battery Saver - Customisable Low Power Watch    
• Controls Smartphone Music    
• Plays And Controls Watch Music    
• Find My Phone    
• Find My Watch    
• Virb Camera Remote    
• Smart Trainer Control    
• Compatible With Garmin Connect Mobile    
• Smartphone Compatibility: iPhone, Android
• Stocks    
• Red Shift Mode

Gym	Strength, HIIT, Cardio and Elliptical Training, Stair Stepping, Floor Climbing, Indoor rowing
Multisport	Swimming/Running, Triathlon
Wellness	Walking, Pilates, Yoga
Indoor Running	Treadmill Running, Indoor Track Running, Virtual running
Outdoor Running	Running, Outdoor Track Running, Trail Running, Ultra Running
Outdoor Recreation	Hiking, Indoor Climbing, Bouldering, Climbing, Hunting, Horseback Riding, Golfing, Disc Golf, Archery
Cycling	Biking, Road biking, Mountain Biking, Gravel biking, Bike commuting, Bike touring, eBiking, eMountain Biking, Indoor Biking, Cyclocross, BMX
Swim	Pool Swimming, Open Water Swimming
On The Water	Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Kiteboarding, Windsurfing, Fishing, Boating, Sailing, Sail Racing, Water Skiing, Wakeboarding, Wakesurfing, Tubing, Snorkeling, Sailing Expedition, Whitewater
Motor Sports	Motorcycling, Overlanding, Motorcrossing, ATVing, Snowmobile
Racket Sports	Tennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball
Snow & Winter	Skiing, Snowboarding, Backcountry Snowboarding, XC Classic Skiing, Backcountry Skiing, Ice Skating, Snowshoeing
Sport Profiles	Basketball, Volleyball, Field Hockey, Ice Hockey, Soccer, Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball
In The Ring	Boxing, Mixed martial arts
Other Activity Profiles	Jumpmaster, Tactical

• Incident Detection During Select Activities    
• Incident Detection Alert On Phone For Wearables    
• Assistance    
• Livetrack    
• Group Livetrack    
• Live Event Sharing

• Stealth Mode    
• Night Vision Mode    
• Dual Grid Coordinates    
• Kill Switch    
• Xero Locations    
• Ballistics Solver

• Gaming Activity    
• Gameon App Compatible

Dive Activity Maximum Operating Depth	200 metres
Single-gas Mode	Yes
Multi-gas Mode	Yes
Gauge Mode	Yes
Apnoea Mode	Yes
Apnoea Hunt Mode	Yes
Decompression Model	Bühlmann ZHL-16c with gradient factors
Nitrox Support	Yes
Trimix Support	Yes
Closed Circuit Rebreather (CCR)	Yes
Gas Mixes	Air, Nitrox and Trimix, up to 100% O2; 1 bottom gas and up to 11 deco and/or backup gases.
PO2	Up to 2.0 with customisable deco PO2 setting
Subwave Support	Yes
Air Integration	Yes (via Subwave™)
Number Of Transmitters Supported	8
Gas Time Remaining	Yes
Gas Consumption Rate	Yes
Auto Start/end Dive	Yes
Custom End-dive Timeout	Yes (20s to 10m)
Safety Stop	Yes (customisable off/3min/5min)
Deep Stops	Yes (using custom gradient factors)
Customisable Conservatism	Yes (low/medium/high or custom using gradient factors)
Dive Ascent/descent Rate Indicator	Yes
Automatic Altitude Adjustment	Yes
No Fly Time	Yes
Dive Planner	Yes (basic NDL + multi-gas deco planner)
Tides	Yes
Backlight	Yes (configurable time and intensity; auto-on at depth)
Automatically Saves Dive Entry And Exit Locations	Yes
Custom Dive Data Screens	Yes
Sync Dive Log To Garmin Dive Mobile App	Yes
Alerts & Alarms	Audible and vibration alarms for ascent rate, PO2, CNS/OTU, NDL, deco, gas switching, tank pressure, gas consumption rate. Customisable (up to 40) audible and/or vibration per dive mode, based on depth or time
3-Axis Dive Compass	Yes (with adjustable heading, quick change to 90R, 90L and reciprocal). Indicates degrees and direction back to set heading
Missed Deco Lockout	Yes (can be disabled prior to dive with user acknowledgement)
Residual Tissue Loading Reset	Yes (on the surface with user acknowledgement)
Surface Diver Status Widget	Yes (surface interval, N2/HE loading, CNS, OTU and tissue compartment status)

• Available Boating Profiles: Boating, Sailing, Sail Racing
• Anchor Alarm    
• Autopilot Control    
• Boat Data Streaming: CIQ
• Virtual Starting Line    
• Countdown Timer    
• Tack Assist Mode    
• Built-in Barometer And Tide Tables (Downloadable Tides)
• Wearable Trolling Motor Remote

• Step Counter    
• Move Alerts (Displays On Device After A Period Of Inactivity; Walk For A Couple Of Minutes To Reset It)    
• Auto Goal (Learns Your Activity Level And Assigns A Daily Step Goal)    
• Calories Burned    
• Floors Climbed    
• Distance Travelled    
• Intensity Minutes    
• Trueup 
• Move IQ   
• Garmin Connect Challenges App (Optional Connect Iq App)

• Cardio Workouts    
• Strength Workouts    
• Hiit Workouts    
• Yoga Workouts    
• Pilates Workouts    
• On-screen Workout Animations    
• On-screen Workout Muscle Map    
• Automatic Rep Counting

• Customisable Screen(S)    
• Downloadable Training Plans    
• Course Guidance    
• HR Zones    
• HR Alerts    
• HR Calories    
• % Hr Max    
• % HRR  
• Recovery Time    
• Auto Max HR 
• Race Glance/widget    
• HRV Status    
• HRV Stress Test (Measures Your Heart Rate Variability While Standing Still, For 3 Minutes, To Provide You With An Estimated Stress Level; The Scale Of This Is 1 To 100; Low Scores Indicate Lower Stress Levels) (With Compatible Accessory)
• Hr Broadcast (Broadcasts HR Data Over ANT+ To Paired Devices)    
• Respiration Rate (During Exercise) (With Compatible Accessory)
• Gps Speed And Distance    
• Customisable Activity Profiles    
• Auto Pause    
• Interval Training    
• Improved Interval (Includes Open Repeats, Intervals Data Page, Rest Screen And Auto Detection)    
• Advanced Workouts    
• Power Modes - Customisable In-activity Battery Settings    
• Hrm Running Pace And Distance    
• Auto Lap    
• Manual Lap    
• Rest Timer    
• Configurable Lap Alerts    
• Heat And Altitude Acclimation    
• Vo2 Max (Run)    
• Vo2 Max (Trail Run)    
• Realtime Stamina    
• Endurance Score    
• Load Ratio    
• Training Load    
• Training Load Focus    
• Training Effect    
• Training Effect (Anaerobic)    
• Primary Benefit (Training Effect Labels)    
• Customisable Alerts    
• Audio Prompts    
• Finish Time    
• Virtual Partner    
• Race An Activity    
• Auto Multisport Activities    
• Multi-sport    
• Garmin Live Segments    
• Strava Live Segments    
• Round-trip Course Creator (Running/cycling)    
• Trendline Popularity Routing    
• Touch And/or Button Lock    
• Hot Keys    
• Auto Scroll    
• Activity History On Watch    
• Physio Trueup    
• Unified Training Status

• Available Run Profiles: Running, Outdoor Track Running, Treadmill Running, Indoor Track Running, Trail Running, Virtual Running, Ultra Running
• Gps-based Distance, Time And Pace    
• Running Dynamics    
• Vertical Oscillation And Ratio    
• Ground Contact Time And Balance    
• Stride Length (Real Time)    
• Cadence (Provides Real-time Number Of Steps Per Minute)    
• Running Power    
• Grade-adjusted Pace    
• Performance Condition    
• Lactate Threshold (With Compatible Accessory)
• Pacepro Pacing Strategies    
• Run Workouts    
• Hill Score    
• Trail Run Auto Climb    
• Race Predictor    
• Course- And Weather-specific Race Predictor    
• Foot Pod Capable    
• Run/walk/stand Detection

• Preloaded With 43,000 Courses Worldwide    
• Yardage To F/m/b (Distance To Front, Middle And Back Of Green)    
• Yardage To Layups/doglegs    
• Measures Shot Distance (Calculates Exact Yardage For Shots From Anywhere On Course): Automatic
• Digital Scorecard    
• Custom Targets    
• Stat Tracking (Strokes, Putts Per Round, Greens And Fairways Hit)    
• Garmin Autoshot    
• Full Vector Map    
• Auto Courseview Updates    
• Green View With Manual Pin Position    
• Hazards And Course Targets    
• Pinpointer    
• Playslike Distance    
• Touch-targeting (Touch Target On Display To See The Distance To Any Point)    
• Handicap Scoring    
• Tempo Training    
• Round Timer/odometer    
• Automatic Club Tracking Compatible (Requires Accessory)    
• Wind Speed And Direction (Requires Connection To The Golf App)    
• Virtual Caddie    
• Pairs With Garmin Golf App    
• Tournament Legal    
• Green Contours (With Garmin Golf Membership)

• Point-to-point Navigation    
• Breadcrumb Trail In Real Time    
• Back To Start    
• Tracback    
• Ultratrac Mode    
• Around Me Mode    
• Reference Point    
• Up Ahead    
• Nextfork Navigation    
• Elevation Profile    
• Distance To Destination    
• Barometric Trend Indicator With Storm Alert    
• Climbpro Ascent Planner    
• Vertical Speed    
• Total Ascent/descent    
• Rest Timer (Ultra Run Only)    
• Auto Rest    
• Future Elevation Plot    
• Preloaded Road And Trail Maps    
• Preloaded Ski Resort Maps    
• Downloadable Cartography Support    
• Gps Coordinates    
• Sight 'n Go    
• Area Calculation (Via Connect IQ)
• Fish Forecast    
• Projected Waypoint    
• Sun And Moon Information    
• Expedition Gps Activity    
• Tides    
• Tides Glance

• Courses    
• Bike Lap And Lap Maximum Power (With Power Sensor)    
• Race An Activity    
• Alerts (Triggers Alarm When You Reach Goals Including Time, Distance, Heart Rate Or Calories)    
• Ftp (Functional Threshold Power) (With Compatible Accessory)
• Power Curve And % Ftp Workouts    
• Garmin Cycle Map (Routable Cycling-specific Street Map)    
• Mtb Grit & Flow    
• Advanced Cycling Dynamics    
• Compatible With Vector And Rally (Power Meters)    
• Compatible With Varia Vision (Head-mounted Display)    
• Compatible With Varia Radar (Rear-facing Radar)    
• Compatible With Varia Lights    
• Speed And Cadence Sensor Support (W/sensor)    
• Power Meter Compatible    
• Power Guide

• Open-water Swim Metrics (Distance, Pace, Stroke Count/rate, Stroke Distance, Swim Efficiency (Swolf), Calories)    
• Pool Swim Metrics (Lengths, Distance, Pace, Stroke Count, Swim Efficiency (Swolf), Calories)    
• Stroke Type Detection (Freestyle, Backstroke, Breaststroke, Butterfly) (Pool Swim Only)    
• Drill Logging (Pool Swim Only)    
• Basic Rest Timer (Up From 0) (Pool Swim Only)    
• "Repeat On" Rest Timer (Pool Swim Only)    
• Auto Rest (Pool Swim Only)    
• Time And Distance Alerts    
• Pacing Alerts (Pool Swim Only)    
• Countdown Start    
• Pool Swim Workouts    
• Critical Swim Speed    
• Underwater Wrist-based Heart Rate    
• Heart Rate From External HRM (Real-time During Rests, Interval And Session Stats During Rests, And Automatic Heart Rate Download Post-swim)

• Toe-to-Toe Challenges App (Optional Connect IQ Toe-to-Toe Challenges App)