Descent? Mk3i – 51 mm
Descent? Mk3i – 51 mm
DISCOVER A DEEPER CONNECTION
Featuring SubWave?sonar-based communication and diver monitoring, this advanced, air-integrated1dive computer and smartwatch 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.
SUBWAVE SONAR-BASED DIVER MESSAGING
UP TO 66 HOURS OF BATTERY LIFE IN DIVE MODE
CHOOSE FROM MULTIPLE DIVE MODES
DIVEVIEW?COLOR MAPS WITH DEPTH CONTOURS AND DIVE SITES
USE THE DIVE READINESS TOOL TO INFORM YOUR PREPARATION
BUILT-IN LED FLASHLIGHT WORKS ABOVE OR BELOW WATER
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WHAT YOU'LL LOVE
AIR INTEGRATION
Pair with our 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 up to 30 meters as well as monitor tank pressures and depth for up to 8 divers within a range of 10 meters1.
DIVE MODES
Get multiple dive modes for single and multiple gas dives (including nitrox and trimix), gauge, apnea, apnea hunt and closed-circuit rebreather.
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.
DIVEVIEW MAPS
Color 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 1.4"AMOLED color display, sapphire lens, 200-meter dive-rated case and leakproof metal inductive buttons, this watch is built to go deep.
A STANDARD ABOVE FOR YOUR WORLD BELOW
DIVE FEATURES
BUILT-IN LED FLASHLIGHT
See and be seen with variable light intensities and strobe modes, in or out of the water.
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 66 hours in dive mode plus up to 25 days in smartwatch mode.
CUSTOMIZABLE DIVE MODES
Add additional screens for each dive mode that features the fields you want to see.
SURFACE GPS
Track your entry and exit1points 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.
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.
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 device with your compatible smartphone .
INREACH?DEVICE COMPATIBLE
Pair with inReach devices2and the inReach dive case for satellite messaging off-grid.
HEALTH AND FITNESS FEATURES
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 traveled 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
The watch constantly samples your heart rate4to 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 minimize 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.
NAVIGATION AND ORIENTATION FEATURES
SATIQ?TECHNOLOGY
Get superior positioning accuracy with multi-band GPS while optimizing 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 favorite 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.
CONNECTED LIFESTYLE FEATURES
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.
QuickFit? accessory bands let you match your style with no tools required.
LEARN MORE
Customize your Garmin device using the Connect IQ? Store.
The Garmin Dive? app lets you log, track and share your dives.
What You'll Love
Sleep score and insights
Battery life (smartwatch mode) : Up to 25 days (10 days always-on)
Built-in mapping
Pulse Ox blood oxygen
LED flashlight
Garmin Pay?
Multi-band GPS
Music storage
Training readiness
Training status : yes (improved)
Display type : AMOLED
Touchscreen
Water rating : Dive (200 meters)
General
Strap material : silicone or DLC coated titanium
Lens Material : sapphire crystal
Bezel Material : Diamond-like Carbon (DLC) coated titanium
Case material : fiber-reinforced polymer with titanium rear cover
QuickFit? watch band compatible : yes (26 mm)
Physical size : 51 x 51 x 16.4 mmFits wrists with the following circumference:Silicone band: 135-230 mmExtra long silicone band: 135-355 mmTitanium bracelet: 135-220 mm
Weight : no bands: 77.8 gsilicone band: 105.6 gtitanium band: 165.9 g
Leakproof inductive buttons
Display Size : 1.4” diameter (35.56 mm)
Display resolution : 454 x 454 pixels
Color display
Large font option
Battery life : Smartwatch: Up to 25 days (10 days always-on)Battery Saver Watch Mode: Up to 31 daysGPS 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 hoursMax Battery GPS: Up to 118 hoursExpedition GPS: Up to 24 daysDive Mode: Up to 66 hoursDive Mode with Air Integration: Up to 40 hours
Charging method : Garmin proprietary clip charger
Memory/History : 32 GB
Clock Features
Time/date
GPS Time Sync
Automatic daylight saving time
Alarm clock
Timer
Stopwatch
Sunrise/sunset times
Health & Wellness Monitoring
Wrist-based heart rate (constant, every second)
Resting heart rate
Abnormal heart rate alerts : yes (high and low)
Respiration rate
Fitness age : yes (in app)
Body Battery? energy monitor
All-day stress
Relaxation breathing timer
Breathwork
Sleep : yes (advanced)
Nap detection
Hydration : yes (in Garmin Connect?)
Women's health : yes (in Garmin Connect?)
Health snapshot
Skin temperature
Jet lag adviser
Sensors
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 (customizable low power watch)
Controls smartphone music
Plays and controls watch music
Find My Phone
Find My Watch
Find My Phone during GPS activity
Compatible with Garmin Messenger app
VIRB? Remote
Smart trainer control
Pairs with Garmin Connect? Mobile
Smartphone compatibility : iPhone?, Android?
Stocks
Red shift mode
Garmin Share
Workout and Training Plans
Daily Suggested Workout - Running
Daily Suggested Workout - Cycling
Daily Suggested Workout - Walking
Garmin Running Coach
Garmin Running Coach Experts
Garmin Cycling Coach
Garmin Coach - Prebuilt Cycling Plans
Cardio workouts
Strength workouts
HIIT workouts
Yoga workouts
Pilates workouts
On-screen workout animations
On-screen workout muscle maps
Activity Profiles
Gym : Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing
Multisport : Swimming/Running, Triathlon
Wellness : Walking, Pilates, Yoga, Indoor Walking
Indoor running : Treadmill Running, Indoor Track Running, Virtual Running
Outdoor running : Running, Outdoor Track Running, Trail Running, Ultra Running, Obstacle Racing
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, Motocrossing, ATVing, Snowmobiling
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
Team sports : Basketball, Volleyball, Field Hockey, Ice Hockey, Football/Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball
In the ring : Boxing, Mixed Martial Arts
Other activity profiles : Jumpmaster, Tactical, Inline Skating
Safety and Tracking Features
Incident Detection during select activities
Incident detection alert on phone for wearables
Assistance
LiveTrack
Group LiveTrack
Live Event Sharing
Tactical Features
Stealth Mode
Night vision mode
Dual grid coordinates
Kill switch
XERO? Locations
Ballistics solver : yes (unlock required)
Gaming Features
Gaming Activity
GameOn? app compatible
Diving Features
Dive activity maximum operating depth : 200 meters
Single-gas mode
Multi-gas mode
Gauge mode
APNEA mode
APNEA hunt mode
Pool APNEA
Decompression model : Bühlmann ZHL-16c with gradient factors
Nitrox support
Trimix support
Closed Circuit Rebreather (CCR)
Gas mixes : Air, Nitrox and Trimix, up to 100% O2; 1 bottom gas and up to 11 deco and/or backup gasses.
PO2 : Up to 2.0 with customizable deco PO2 setting
Subwave? Support
Air integration : yes (via Subwave?)
Number of transmitters supported : 8
Gas time remaining
Gas consumption rate
Auto start/end dive
Custom end-dive timeout : yes (20s to 10 m)
Safety Stop : yes (customizable off/3min/5min)
Deep Stops : yes (using custom gradient factors)
Customizable conservatism : yes (low/medium/high or custom using gradient factors)
Dive ascent/descent rate indicator
Automatic altitude adjustment
No fly time
Dive planner : yes (basic NDL + multi-gas deco planner)
Tides
Backlight : yes (configurable time and intensity; auto-on at depth)
Automatically saves dive entry and exit locations
Sync dive log to Garmin Dive? Mobile app
Custom dive data screens
Alerts & alarms : Audible and vibration alarms for ascent rate, PO2, CNS/OTU, NDL, deco, gas switching, tank pressure, gas consumption rate. Customizable (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)
Boating Features
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 : yes (downloadable tides)
Wearable trolling motor remote
Activity Tracking Features
Step counter
Move alerts (displays on device after a period of inactivity)
Auto goal (learns your activity level and assigns a daily step goal)
Calories burned
Floors climbed
Distance traveled
Intensity minutes
TrueUp?
Move IQ?
Garmin Connect? Challenges app : yes (optional Connect IQ app)
Automatic rep counting
Training, Planning and Analysis Features
Customizable data pages
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) : yes (with compatible accessory)
HR broadcast (broadcasts HR data over ANT+? to paired devices)
Respiration rate (during exercise) : yes (with compatible accessory)
GPS speed and distance
Customizable activity profiles
Auto Pause?
Interval training
Improved interval (includes open repeats, intervals data page, rest screen and auto detection)
Advanced workouts
Power Modes - customizable 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)
Improved recovery time
Custom alerts
Voice alerts
Finish time
Virtual Partner
Race an Activity
Auto multisport activities
Manual multisport activities
Garmin Live Segments
Strava Live Segments
Round-trip course creator (running/cycling)
Trendline? Popularity Routing
Touch and/or button lock
Shortcuts
Auto scroll
Activity history on watch
Physio TrueUp
Unified training status
Running Features
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 : yes (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
Golfing Features
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
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