Descent™ Mk1

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Overview

Versatile GPS Dive Computer for Your Diving Adventures

  • Premium full-featured dive computer with surface GPS in a sleek watch-style design; with bright 1.2” color display and TOPO mapping
  • Built-in sensors include 3-axis compass, gyroscope and barometric altimeter as well as GPS and GLONASS capability that lets you mark your dive entry and exit points¹ for surface navigation
  • Supports single-gas, multi-gas, gauge and apnea diving, including nitrox and trimix; plan your dives directly on the device
  • Dive log lets you store and review data from up to 10,000 dives — and share online via Garmin Connect™ and its included mobile app
  • Features Elevate™ wrist heart rate technology² with multisport activity profiles, performance metrics and smart notifications³
  • Battery life: up to 19 days in watch mode, 10 days in smartwatch mode, 40 hours in dive mode and 20 hours in GPS mode4

Whether you dive with or without tanks, in saltwater or fresh water, breathing nitrox, trimix or holding your breath — Descent Mk1 is the intuitive, do-it-all dive computer you’ve been waiting for. It’s the first watch-sized dive computer to offer surface GPS navigation with full-color onscreen mapping and location reference — so you can easily mark your dive entry and exit points¹.

Once underwater, the proven Bühlmann ZHL-16c algorithm makes sure you’re staying within your dive limits. Selectable tone and vibration alerts help keep you informed while you’re submerged. Returning topside, Descent Mk1 also functions as a robust training companion, offering the best features of our fēnix® 5X ultimate multisport GPS watch, including smart notifications³ to help you stay in touch on the go. What’s more, the Descent Mk1 design is so sleek, comfortable and elegantly crafted, you’ll want to wear it as your everyday timepiece.

Breathe Easier, Dive Better

Providing easy-to-access features for a range of diving activities — including the ability to plan dives on the device for recreational, technical and free diving — Descent Mk1 provides all the key, real-time data you need for a confident dive. The computer is automatically activated when you hit the water, showing your current depth, dive time, water temperature, ascent/descent rate, no-deco time, decompression stop information, battery life and more on the unit’s crisp 1.2” color display.

You can set the audible tone and vibration alarms to provide reminders at critical points in your dive. And up to 6 different gas mixes are supported, including nitrox and trimix (up to 100% oxygen). Configurable conservatism settings let you adjust your personal safety limits.

Breathe Easier, Dive Better

Multiple Navigation Sensors

In addition to its high-sensitivity GPS and GLONASS satellite tracking for map-based surface navigation, Descent Mk1 also provides a full array of ABC (altimeter, barometer and compass) sensor capabilities for topside navigation. And the easy-to-read compass display is available for underwater use as well. The built-in altimeter provides elevation data, while the tilt-compensated 3-axis electronic compass keeps your bearing — whether you’re moving or not. For quick access to the compass display, a handy “tap to compass” feature lets you simply double-tap the screen instead of pushing the function buttons.

Multiple Navigation Sensors

Wrist-based Heart Rate

The Descent Mk1 dive computer uses Garmin Elevate wrist-based heart rate technology² to optically scan your pulse (when worn in contact with your skin, not over a wetsuit or dry suit). The dive computer tracks your exertion levels and uploads your heart rate data automatically to your Garmin Connect online account for post-dive review and analysis.

Wrist-based Heart Rate

Advanced Multisport Watch Features

Beyond its full range of dive computer functions, Descent Mk1 also offers a complete feature set of sports/training, fitness and outdoor navigation tools, leveraged from our popular fēnix line of high-end multisport watches. You can tap into an array of physiological metricsrunning dynamics, fitness tracking features and more — to monitor your workout stats, measure your progress and help avoid injury. Special preloaded activity profiles are provided for swimming, running, biking, hiking, skiing, rowing, paddle boarding and more. Various timekeeping, lap counts and map tracking functions are easily accessible. Plus, for added motivation, you can even download advanced workouts and training plans to your device from Garmin Connect.

Advanced Multisport Watch Features

Smart Connectivity

When paired with your compatible smartphone³, Descent Mk1 makes it easy to receive text messages, emails and smart notifications right on your watch face. It also gives you access to automatic uploads with Garmin Connect, audio prompts, music controls and more. While you’re topside, friends and family members can follow your location and adventures online, in real time, using the LiveTrack feature. Or you can use GroupTrack and your map display to keep tabs on your activity-sharing buddies as you go.

Smart Connectivity

Premium Materials, Elegant Style

Crafted of premium grade materials, the Descent Mk1 dive computer is available in 2 distinctive styles: a stainless steel bezel with treated silicone watch band or a deluxe titanium bezel version with brushed DLC titanium bracelet. Both models offer advanced GPS and GLONASS satellite reception, via an EXO™ omnidirectional antenna in the bezel, for better reception in challenging environments (versus GPS alone). A bright, high-resolution, full-color Garmin Chroma Display™ with LED backlighting assures great readability in all lighting conditions, above or below the water. And for added scratch resistance, both models incorporate a high-strength domed sapphire lens.

Premium Materials, Elegant Style

Charge It Up, Change It Up

Between charges, you can count on up to 40 hours of battery life in dive mode, up to 19 days in watch mode, up to 10 days in smartwatch mode and up to 20 hours in GPS mode (all depending on settings). QuickFit bands let you tailor your wrist-worn style for any daily activity or special occasion — no tools required. And for diving, longer QuickFit straps are included for use over thick wetsuits or dry suits.

Charge It Up, Change It Up

You can customize the watch display with free watch faces, apps and data fields from our Connect IQ store. For your safety, Connect IQ functions are not available while diving, so we can ensure that all dive capabilities are functioning as they were designed. Both Descent Mk1 models are also Wi-Fi®-enabled, so each can connect to your wireless network and automatically send activity uploads for sharing on Garmin Connect.

At a Glance

¹GPS tracking does not work underwater
²See Garmin.com/ataccuracy
³When paired with a compatible smartphone; see Garmin.com/BLE
4Depending on settings

Wi-Fi® is a registered trademark of the Wi-Fi Alliance.

Spec

General

Lens Material Sapphire crystal
Bezel Material Stainless steel or titanium
Case material Fiber-reinforced polymer
QuickFit™ watch bands Yes (26 mm)
Strap material Silicone or titanium
Physical dimensions 51 x 51 x 17.8 mm
Weight Steel with silicone band: 101 g
Titanium with silicone band: 94 g
Titanium with titanium band: 145 g
Water rating Dive (Designed to comply with EN13319)
Display type Sunlight-visible, transflective memory-in-pixel (MIP)
Display size, WxH 1.2” (30.4 mm) diameter
Display resolution, WxH 240 x 240 pixels
Color display
Battery life Dive mode: Up to 40 hours Watch mode: Up to 19 days Smartwatch mode: Up to 10 days GPS/HR Activity mode: Up to 20 hours UltraTrac™ mode: Up to 30 hours
Memory/history 16 GB

Clock Features

Time/date
GPS Time Sync
Automatic daylight saving time
Alarm clock
Timer
Stopwatch
Sunrise/sunset times
Face It™ watch face creator

Sensors

GPS
GLONASS
Garmin Elevate™ wrist heart rate monitor
Barometric altimeter
Compass
Gyroscope
Accelerometer
Thermometer
Depth sensor

Daily Smart Features

Connectivity Bluetooth® Smart, ANT+®, Wi-Fi®
Connect IQ™ (downloadable watch faces, data fields, widgets and apps)
Smart notifications
Calendar
Weather
Music controls
Find my phone feature
VIRB® remote
Smartphone compatibility iPhone®, Android™, Windows®
Compatible with Garmin Connect™ Mobile
Find My Watch feature

Diving Features

Dive activity maximum operating depth 100 meters (Designed to comply with EN13319)
Single-gas mode
Multi-gas mode
Gauge mode
APNEA mode
APNEA hunt mode
Decompression model Bühlmann ZHL-16c with gradient factors
Nitrox support
Trimix support
Gas mixes Air, nitrox and trimix, up to 100% O2; 1 bottom gas, and up to 5 deco and/or backup gases
P02 Up to 1.6 with customizable deco PO2 setting
Auto start/end dive
Custom end-dive timeout Sim (20 s a 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 yes (with 24hr countdown)
Dive planner yes (basic NDL + multi-gas deco planner)
Automatically saves dive entry and exit locations
Sync dive log to Garmin Connect™ and Garmin Connect™ Mobile
Alerts & alarms Audible and vibration alarms for ascent rate, PO2, CNS/OTU, NDL, deco, gas switching. 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

Preloaded Boating Profiles Boating

Heart Rate Features

HR zones
HR alerts
HR calories
% HR max
% HRR
Recovery time
Auto max HR
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 stres Yes (with compatible accessory)
Records heart rate while swimming Yes (with HRM-Tri™ and HRM-Swim™)
HR Broadcast (broadcasts HR data over ANT+™ to paired devices)

Activity Tracking Features

Step counter
Auto goal (learns your activity level and assigns a daily step goal)
Move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it)
Sleep monitoring (monitors total sleep and periods of movement or restful sleep)
Calories burned
Floors climbed
Distance traveled
Intensity minutes
TrueUp™
Move IQ™
Fitness Age Yes (in app)

Training, Planning and Analysis Features

Activity history on watch
Customizable activity profiles
Customizable alerts
Audio prompts
Course guidance
Advanced workouts
Auto Lap®
Auto Pause®
Auto scroll
Customizable data pages
Virtual Partner
Finish time
Group LiveTrack
Hot keys
Configurable lap alerts
LiveTrack
Touch and/or button lock
Manual lap
Segments (Live, Garmin)
GPS speed and distance
Training Effect (aerobic)
Training Effect (anaerobic)
Race an activity
Training Load (your total training load for the last 7 days calculated from estimated EPOC)
Downloadable training plans
Training Status (lets you see if you’re training effectively by tracking your training history and fitness level trend.)
V02 max

Running Features

Preloaded run profiles Running, Indoor Running, Trail Running
GPS-based distance, time and pace
Running dynamics
Cadence (provides real-time number of steps per minute)
Physiological measurements
Performance condition (after running 6–20 minutes, compares your real-time condition to your average fitness level)
Lactate threshold (through analysis of your pace and heart rate, estimates the point where your muscles start to rapidly fatigue) Yes (with compatible accessory)
Run workouts
Race predictor
Foot pod capable

Outdoor Recreation Features

Preloaded outdoor recreation profiles Hiking, Climbing, Mountain Biking, Skiing, Snowboarding, XC Skiing, Stand Up Paddleboarding, Rowing, Jumpmaster, Tactical
Point-to-point navigation
Bread crumb trail in real time
Back to start
TracBack®
UltraTrac™ mode
Around Me mode
Elevation profile
Distance to destination
Barometric trend indicator
Storm alert
Trail run auto climb
Vertical speed
Total ascent/descent
Preloaded topographical maps
Future elevation plot
Downloadable cartography support
Compatible with BaseCamp™
GPS coordinates
Projected waypoint
Sight 'N Go
Area calculation Yes (via Connect IQ™)
Hunt/fish calendar Yes (via Connect IQ™)
Sun and moon information Yes (via Connect IQ™)
Dual grid coordinates

Cycling Features

Preloaded cycling profiles Biking, Indoor Biking, Mountain Biking
Time/distance alert (triggers alarm when you reach goal)
Courses (compete against previous activities)
Bike lap and lap maximum power (with power sensor)
Interval training
Strava features (Beacon, live segments)
Garmin Cycle Map (routable cycling-specific street map)
Compatible with Vector™ (power meter)
Power meter compatible (displays power data from compatible 3rd party ANT+™-enabled 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 (with sensor) Yes (ANT+® and Bluetooth® Smart sensors)

Swimming Features

Preloaded swim profiles Pool Swimming, Open Water Swimming
Pool swim metrics (lengths, distance, pace, stroke count/rate, calories)
Stroke type detection (freestyle, backstroke, breaststroke, butterfly)
Pool swim workouts
Swim efficiency (SWOLF)
Drill logging
Heart rate (real-time during rests, interval and sessions stats during rests, and automatic heart rate download post-swim) Yes (with HRM-Tri™ and HRM-Swim™)
Open water swim metrics (distance, pace, stroke count/rate, calories)

Golfing Features

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)
Digital scorecard
Stat tracking (strokes, putts per round, greens and fairways hit and average shot distance)
Garmin AutoShot™
Auto CourseView updates
Green View with manual pin position
Hazards and course targets
TruSwing™ compatible
Round timer/odometer

Fitness Equipment/Gym

Preloaded gym activity profiles Indoor Rowing

Additional

Additional
  • Air integration: no
  • CCR support: no
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Descent™ Mk1

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