Garmin Descent Mk3i Watch Style-Dive Computer (51mm, Carbon Gray with DLC Titanium Band)
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Featuring SubWave sonar-based communication and diver monitoring, this advanced, air-integrated Garmin 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.
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 via required software update) up to 30 meters as well as monitor tank pressures and depth for up to 8 divers within a range of 10 meters.
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-inch AMOLED color display, sapphire lens, 200-meter dive-rated case and leakproof metal inductive buttons, this watch is built to go deep.
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 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.
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 devices 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 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 spots.
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.
Key Features
| 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 | 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 mm |
| Fitting Wrists Circumference | 135-230 mm |
| Weight (no bands) | 77.8 g |
| Weight (with silicone band) | 105.6 g |
| Leakproof Inductive Buttons | Yes |
| Display Size | 1.4-inch diameter |
| Display Resolution | 454 x 454 pixels |
| Color Display | Yes |
| Large Font Option | Yes |
| Charging Method | Garmin Proprietary Clip Charger |
| Memory/History | 32 GB |
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 |
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 and Wellness Monitoring
| Wrist-based 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 |
Diving
| Dive Activity Maximum Operating Depth | 200m |
| Single-gas Mode | Yes |
| Multi-gas Mode | Yes |
| Gauge Mode | Yes |
| Apnea Mode | Yes |
| Apnea Hunt Mode | Yes |
| Pool Apnea | Yes |
| Decompression Model | Buhlmann 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 |
| Safety Stop | Yes (customizable off / 3min / 5min) |
| Dive Ascent/Descent Rate Indicator | Yes |
| Automatic Altitude Adjustment | Yes |
| Surface Diver Status Widget | Yes (surface interval, N2/HE loading, CNS, OTU and tissue compartment status) |
| Dive Setting Sync | Yes |
Other Features
| Connectivity | Bluetooth, ANT+, Wi-Fi, Subwave |
| Smart Notifications | Yes |
| Morning Report | Yes |
| Calendar | Yes |
| Weather Forecasts | Yes |
| Controls Smartphone Music | Yes |
| Plays and Controls Watch Music | Yes |
| Find My Phone | Yes |
| Find My Watch | Yes |
| Smartphone Compatibility | iPhone, Android |
| Garmin Share | 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, Multisport, Wellness, Indoor Running, Outdoor Running, Outdoor Recreation, Cycling, Swim, On the Water, Motor Sports, Snow and Winter, Team Sports, In the Ring, Jumpmaster, Tactical, and Inline Skating. |
| Tactical Features | Ballistics solver, dual grid coordinates, kill switch, night vision mode, stealth mode, and XERO locations |
Frequently Asked Questions
How do I return an item?
How do I return an item?
Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
Will I receive a full refund when I return an item?
Will I receive a full refund when I return an item?
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.
How many days do I have to make a return?
How many days do I have to make a return?
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days.
My item was damaged in transit. How do I place a return?
My item was damaged in transit. How do I place a return?
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage.
There’s an issue with my order, what should I do?
There’s an issue with my order, what should I do?
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.
Can I exchange an item?
Can I exchange an item?
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.
If I ordered a kit, do I have to return all the items?
If I ordered a kit, do I have to return all the items?
If you ordered a kit, you must return all components and accessories to receive a full refund.
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.
Do you offer repairs?
Do you offer repairs?
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.
What is your return policy?
What is your return policy?
Most items can be returned within 30 days for a full refund. Click here to read our full return policy.





