Descent™ Mk3i – 51 mm
part number:010-02752-10
DISCOVER A DEEPER CONNECTION
Featuring SubWave™ sonar-based communication and diver monitoring, this advanced, air-integrated1 dive 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
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.
| What You'll Love | |
|---|---|
| Sleep score and insights | Yes |
| Battery life (smartwatch mode) | Up to 25 days (10 days always-on) |
| Built-in mapping | Yes |
| Pulse Ox blood oxygen | Yes |
| LED flashlight | Yes |
| Garmin Pay™ | Yes |
| Multi-band GPS | Yes |
| Music storage | Yes |
| Training readiness | Yes |
| Training status | yes (improved) |
| Display type | AMOLED |
| Touchscreen | Yes |
| 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 or silver and black PVD 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 mm Fits wrists with the following circumference: |
| Weight | no bands: 77.8 g |
| Leakproof inductive buttons | Yes |
| Display Size | 1.4” diameter (35.56 mm) |
| Display resolution | 454 x 454 pixels |
| Color display | Yes |
| Large font option | Yes |
| Battery life | Smartwatch: Up to 25 days (10 days always-on) |
| Charging method | Garmin proprietary clip charger |
| Memory/History | 32 GB |
| Clock Features | |
|---|---|
| Time/date | yes |
| GPS Time Sync | Yes |
| Automatic daylight saving time | Yes |
| Alarm clock | Yes |
| Timer | Yes |
| Stopwatch | Yes |
| Sunrise/sunset times | Yes |
| Health & Wellness Monitoring | |
|---|---|
| Heart rate (constant, every second) | Yes |
| Resting heart rate | Yes |
| Abnormal heart rate alerts | yes (high and low) |
| Respiration rate | Yes |
| Fitness age | yes (in app) |
| Body Battery™ energy monitor | Yes |
| All-day stress | Yes |
| Relaxation breathing timer | Yes |
| Breathwork | Yes |
| Sleep | yes (advanced) |
| Nap detection | Yes |
| Hydration | yes (in Garmin Connect™) |
| Women's health | yes (in Garmin Connect™) |
| Health snapshot | Yes |
| Skin temperature | Yes |
| Jet lag adviser | Yes |
| Sensors | |
|---|---|
| GPS | Yes |
| GLONASS | Yes |
| Galileo | Yes |
| SatIQ™ technology | Yes |
| Garmin Elevate™ wrist heart rate monitor | Yes |
| Pulse Ox blood oxygen saturation monitor | Yes |
| Barometric altimeter | Yes |
| Compass | Yes |
| Gyroscope | Yes |
| Accelerometer | Yes |
| Thermometer | Yes |
| Ambient light sensor | Yes |
| Depth sensor | Yes |
| Daily Smart Features | |
|---|---|
| Find My Phone | Yes |
| Find My Garmin (helps locate lost device) | Yes |
| Find My Phone during GPS activity | Yes |
| Connectivity | Bluetooth®, ANT+®, Wi-Fi®, Subwave™ |
| Connect IQ™ (downloadable watch faces, data fields and apps) | Yes |
| On-device Connect IQ™ Store | Yes |
| Smart Notifications | Yes |
| Text response/reject phone call with text (Android™ only) | Yes |
| View images from notifications on watch (Android™ only) | Yes |
| Morning report | Yes |
| Calendar | Yes |
| Weather forecasts | Yes |
| Realtime settings sync with Garmin Connect™ mobile | Yes |
| Battery saver (customizable low power watch) | Yes |
| Controls smartphone music | Yes |
| Plays and controls watch music | Yes |
| Compatible with Garmin Messenger app | Yes |
| Smart trainer control | Yes |
| Pairs with Garmin Connect™ mobile | Yes |
| Smartphone compatibility | iPhone®, Android™ |
| Stocks | Yes |
| Red shift mode | Yes |
| Garmin Share | Yes |
| Workout and Training Plans | |
|---|---|
| Daily suggested workout - Running (pace and heart rate based) | Yes |
| Daily suggested workout - Cycling (pace and heart rate based) | Yes |
| Garmin running coach | Yes |
| Garmin running coach experts | Yes |
| Garmin cycling coach | Yes |
| Garmin Coach - Prebuilt cycling plans | Yes |
| Cardio workouts | Yes |
| Strength workouts | Yes |
| HIIT workouts | Yes |
| Yoga workouts | Yes |
| Pilates workouts | Yes |
| On-screen workout animations | Yes |
| On-screen workout muscle maps | Yes |
| 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 and 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 |
| Dive | Diving |
| Other activity profiles | Jumpmaster, Tactical, Inline Skating |
| Safety and Tracking Features | |
|---|---|
| Incident detection during select activities | Yes |
| Incident detection alert on phone for wearables | Yes |
| Assistance | Yes |
| Live event sharing | Yes |
| Tactical Features | |
|---|---|
| Ballistics solver | yes (unlock required) |
| Dual grid coordinates | Yes |
| Kill switch | Yes |
| Night vision mode | Yes |
| Stealth mode | Yes |
| XERO™ Locations | Yes |
| Gaming Features | |
|---|---|
| Gaming Activity | Yes |
| GameOn™ app compatible | Yes |
| Diving Features | |
|---|---|
| Dive activity maximum operating depth | 200 meters |
| Single-gas mode | Yes |
| Multi-gas mode | Yes |
| Gauge mode | Yes |
| APNEA mode | Yes |
| APNEA hunt mode | Yes |
| Pool APNEA | 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 gasses. |
| PO2 | Up to 2.0 with customizable 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 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 | 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 |
| Sync dive log to Garmin Dive™ Mobile app | Yes |
| Custom dive data screens | Yes |
| Alerts and 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) |
| NDL aware depth metrics | Yes |
| Side mount | Yes |
| Dive setting sync | Yes |
| Boating Features | |
|---|---|
| Available Boating Profiles | Boating, Sailing, Sail Racing |
| Anchor Alarm | Yes |
| Autopilot Control | yes |
| Boat Data Streaming | CIQ |
| Virtual starting line | Yes |
| Countdown timer | Yes |
| Tack assist mode | Yes |
| Built-in barometer and tide tables | yes (downloadable tides) |
| Wearable trolling motor remote | Yes |
| Activity Tracking Features | |
|---|---|
| Step counter | Yes |
| Move alerts (displays on device after a period of inactivity) | Yes |
| Auto goal (learns your activity level and assigns a daily step goal) | Yes |
| Calories burned | Yes |
| Floors climbed | Yes |
| Distance traveled | Yes |
| Intensity minutes | Yes |
| TrueUp™ | Yes |
| Move IQ™ | Yes |
| Garmin Connect™ Challenges app | yes (optional Connect IQ app) |
| Automatic rep counting | Yes |
| Training, Planning and Analysis Features | |
|---|---|
| Improved interval (includes open repeats, intervals data page, rest screen and auto detection) | Yes |
| Customizable data pages | Yes |
| Downloadable training plans | Yes |
| Course guidance | Yes |
| HR zones | Yes |
| HR alerts | Yes |
| HR calories | Yes |
| % HR max | Yes |
| % HRR | Yes |
| Recovery time | Yes |
| Auto max HR | Yes |
| Race glance/widget | Yes |
| HRV status | Yes |
| 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) | Yes |
| Respiration rate (during exercise) | yes (with compatible accessory) |
| GPS speed and distance | Yes |
| Customizable activity profiles | Yes |
| Auto Pause® automatic timer halt | Yes |
| Interval training | Yes |
| Advanced workouts | Yes |
| Power modes (customizable in-activity battery settings) | Yes |
| HRM running pace and distance | Yes |
| Auto Lap® interval tracking feature | Yes |
| Manual lap | Yes |
| Rest timer | Yes |
| Configurable lap alerts | Yes |
| Heat and altitude acclimation | Yes |
| VO2 Max (run) | Yes |
| VO2 Max (trail run) | Yes |
| Realtime stamina | Yes |
| Endurance score | Yes |
| Load ratio | Yes |
| Training load | Yes |
| Training load focus | Yes |
| Training effect | Yes |
| Training effect (anaerobic) | Yes |
| Primary benefit (training effect labels) | Yes |
| Custom alerts | Yes |
| Voice alerts | Yes |
| Finish time | Yes |
| Virtual Partner | Yes |
| Race an Activity | Yes |
| Manual multisport activities | Yes |
| Garmin Live Segments | Yes |
| Strava Live Segments | Yes |
| Round-trip course creator (running/cycling) | Yes |
| Trendline™ Popularity Routing | Yes |
| Touch and/or button lock | Yes |
| Shortcuts | Yes |
| Auto scroll | Yes |
| Activity history on watch | Yes |
| Physio TrueUp | Yes |
| Unified training status | Yes |
| Running Features | |
|---|---|
| GPS-based distance, time and pace | Yes |
| Running dynamics | Yes |
| Vertical oscillation and ratio | Yes |
| Ground contact time and balance | Yes |
| Stride length (real time) | Yes |
| Cadence (provides real-time number of steps per minute) | Yes |
| Running power | Yes |
| Grade-adjusted pace | Yes |
| Performance condition | Yes |
| Lactate threshold | yes (with compatible accessory) |
| PacePro™ pacing strategies | Yes |
| Run workouts | Yes |
| Hill score | Yes |
| Trail run auto climb | Yes |
| Race predictor | Yes |
| Course- and weather-specific race predictor | Yes |
| Foot pod capable | Yes |
| Run/walk/stand detection | Yes |
| Golfing Features | |
|---|---|
| Preloaded with 43,000 courses worldwide | Yes |
| Yardage to F/M/B (distance to front, middle and back of green) | Yes |
| Yardage to layups/doglegs | Yes |
| Measures shot distance (calculates exact yardage for shots from anywhere on course) | automatic |
| Digital scorecard | yes |
| Custom targets | Yes |
| Stat tracking (strokes, putts per round, greens and fairways hit) | Yes |
| Garmin AutoShot™ | Yes |
| Full vector map | Yes |
| Auto CourseView updates | Yes |
| Green View with manual pin position | Yes |
| Hazards and course targets | Yes |
| PinPointer | Yes |
| PlaysLike distance | Yes |
| Touch-targeting (touch target on display to see the distance to any point) | Yes |
| Handicap scoring | Yes |
| Tempo Training | Yes |
| Round timer/odometer | Yes |
| CT10 Automatic club tracking compatible (requires accessory) | Yes |
| Wind speed and direction (requires connection to Garmin Golf app) | Yes |
| Virtual caddie | Yes |
| Pairs with Garmin Golf app | Yes |
| Tournament legal | Yes |
| Green Contours (with Garmin Golf membership) | Yes |
| Putt tracking | Yes |
| Outdoor Recreation | |
|---|---|
| Projected waypoint | Yes |
| UltraTrac mode | Yes |
| Elevation profile | Yes |
| Distance to destination | Yes |
| Barometric trend indicator with storm alert | Yes |
| Vertical speed | Yes |
| Total ascent/descent | Yes |
| Rest timer (ultra run only) | Yes |
| Auto rest | Yes |
| Future elevation plot | Yes |
| GPS coordinates | Yes |
| Sight 'N Go | Yes |
| Area calculation | yes (via Connect IQ™) |
| Fish forecast | Yes |
| Sun and moon information | Yes |
| Expedition GPS Activity | Yes |
| Tides | Yes |
| Tide glance | Yes |
| Mapping & Navigation | |
|---|---|
| Point-to-point navigation | Yes |
| Bread crumb trail in real time | Yes |
| Back to start | Yes |
| TracBack® | Yes |
| Explore Nearby | Yes |
| Reference point | Yes |
| Up Ahead | Yes |
| ClimbPro™ Ascent Planner | Yes |
| NextFork™ navigation | Yes |
| Preloaded road and trail maps | Yes |
| Preloaded ski resort maps | Yes |
| Downloadable cartography support | Yes |
| Cycling Features | |
|---|---|
| Courses | Yes |
| Bike lap and lap maximum power (with power sensor) | Yes |
| Race an activity | Yes |
| Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories) | Yes |
| FTP (Functional Threshold Power) | yes (with compatible accessory) |
| Power curve and % FTP workouts | Yes |
| Cycle Map (routable cycling-specific street map) | Yes |
| MTB Grit & Flow | Yes |
| Advanced cycling dynamics | Yes |
| Compatible with Vector™ and Rally™ (power meters) | Yes |
| Compatible with Varia Vision™ (head-mounted display) | Yes |
| Compatible with Varia™ radar (rear-facing radar) | Yes |
| Compatible with Varia™ lights | Yes |
| Compatible with Varia™ headlight camera | Yes |
| Speed and cadence sensor support (w/sensor) | Yes |
| Power meter compatible | Yes |
| Power guide | Yes |
| Swimming Features | |
|---|---|
| Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, swim efficiency (SWOLF), calories) | Yes |
| Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories) | Yes |
| Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only) | Yes |
| Drill logging (pool swim only) | Yes |
| Basic rest timer (up from 0) (pool swim only) | Yes |
| "Repeat on" rest timer (pool swim only) | Yes |
| Auto rest (pool swim only) | Yes |
| Time and distance alerts | Yes |
| Time and distance alerts | Yes |
| Pacing alerts (pool swim only) | Yes |
| Countdown start (pool swim only) | Yes |
| Pool swim workouts | Yes |
| Critical swim speed | Yes |
| Underwater wrist-based heart rate | Yes |
| Heart rate from external HRM (real-time during rests, interval and session stats during rests, and automatic heart rate download post-swim) | yes (with HRM-Tri, HRM-Swim, HRM-Pro or HRM-Pro Plus) |
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