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Garmin The Descent Mk1

by Garmin

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Product Description

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 200 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

Descent Mk1 Silver Sapphire with Black Band

  • Stainless Steel Bezel 
  • Descent Mk1 with black band
  • Extra-long adjustment strap
  • Charging/data cable
  • Documentation

Descent Mk1 Gray Sapphire with Black Band

  • Titanium Bezel
  • Descent Mk1 with black band
  • Extra-long adjustment strap
  • Charging/data cable
  • Documentation

Descent Mk1 Gray Sapphire with DLC Titanium Band

  • Titanium Bezel 
  • Descent Mk1 with DLC titanium band
  • Black silicone band
  • Extra-long adjustment strap
  • Charging/data cable
  • Documentation
Lens Material

sapphire crystal

Bezel Material

stainless steel or titanium


Case material fiber-reinforced polymer
QuickFit™ watch band compatible

yes (26 mm)


Strap material

silicone or titanium

Physical size

51 x 51 x 17.8 mm


Display size 1.2” (30.4 mm) diameter
Display resolution 240 x 240 pixels
Display type sunlight-visible, transflective memory-in-pixel (MIP)

steel with silicone band: 101 g
titanium with silicone band: 94 g
titanium with titanium band: 145 g


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
Water rating Dive (Designed to comply with EN13319)
Color display  
Memory/History 16 GB

Clock Features

  • Time/date
  • GPS Time Sync
  • Automatic daylight saving time
  • Alarm clock
  • Timer
  • Stopwatch
  • Sunrise/sunset times


  • GPS
  • 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


  • Controls smartphone music


  • Find My Phone


  • Find My Watch


  • VIRB® Camera Remote


  • Smartphone compatibility

iPhone®, Android™

  • Compatible with Garmin Connect™ Mobile


Safety and Tracking Features

  • LiveTrack
  • Group LiveTrack

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
  • 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)
  • Backlight
yes (configurable time and intensity; auto-on at depth)
  • 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

  • Available Boating Profiles

Activity Tracking Features

  • Step counter
  • Move bar (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)
  • 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)

Gym & Fitness Equipment

  • Available gym activity profiles
Indoor Rowing, Strength Training, Cardio Training
  • Cardio workouts
  • Strength workouts

Training, Planning and Analysis Features

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

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 stress levels)
yes (with compatible accessory)
  • HR Broadcast (broadcasts HR data over ANT+™ to paired devices)

Running Features

  • Available run profiles

Running, Treadmill Running, Trail Running

  • GPS-based distance, time and pace
  • Running dynamics
yes (with compatible accessory)
  • Vertical oscillation and ratio (the degree of 'bounce' in your running motion and the cost-benefit ratio with stride length)
yes (with compatible accessory)
  • Ground contact time and balance (shows how much time, in the running motion, your foot is on the ground rather than in flight and lets you check your running symmetry)
yes (with compatible accessory)
  • Stride length (real time)
yes (with compatible accessory)
  • Cadence (provides real-time number of steps per minute)
  • 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

Golfing Features

  • Preloaded with 41,000 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)
  • Digital scorecard
  • Stat tracking (strokes, putts per round, greens and fairways hit)
  • Garmin AutoShot™
  • Auto CourseView updates
  • Green View with manual pin position
  • Hazards and course targets
  • TruSwing™ compatible
  • Round timer/odometer

Outdoor Recreation Features

  • Available 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 with Storm Alert
  • Trail run auto climb
  • Vertical speed
  • Total ascent/descent
  • Future elevation plot
  • Preloaded topographical maps
  • 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

  • Available cycling profiles

Biking, Indoor Biking, Mountain Biking, Triathlon

  • Courses
  • Bike lap and lap maximum power (with power sensor)
  • Race an activity
  • Time/distance alerts (triggers alarm when you reach goal)
  • FTP (Functional Threshold Power)
yes (with compatible accessory)
  • Cycle Map (routable cycling-specific street map)
  • Compatible with Vector™ (power meter)
  • Power meter compatible (displays power data from compatible third-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

  • Available swim profiles

Pool Swimming, Open Water Swimming, Swimming/Running

  • Pool swim metrics (lengths, distance, pace, stroke count/rate, calories)
  • Stroke type detection (freestyle, backstroke, breaststroke, butterfly)
  • Swim efficiency (SWOLF)
  • Drill logging
  • Pool swim workouts
  • Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, calories)
  • 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™ and HRM-Swim™)


  • Smartphone compatibility
iPhone®, Android™


  • Additional
  • Air integration: NO

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