Garmin Descent Mk2 back with heart rate monitor

Garmin Descent Mk2 right side with buttons

Garmin Descent Mk2i left side with buttons

Garmin Descent Mk2i back with heart rate monitor

Garmin Descent Mk2 & Mk2i Dive Smartwatches

These items have been discontinued. No longer available.

Explore both of your worlds — underwater and topside — with the Descent Mk2 series of watch-sized dive computers. They feature multiple dive modes, such as single and multiple gas dives, gauge, apnea, apnea hunt and closed-circuit rebreather.

The Descent Mk2i dive computer adds SubWave sonar technology for integrated tank pressure monitoring on up to 5 tanks when paired with the Descent T1 transmitter (sold separately), making it ideal for instructors or group dives.

SKU: N/A Category: Discontinued Tags: Descent, Extended Warranty, Garmin, smartwatch

The Descent Mk2 series comes with ABC sensors with an underwater 3-axis compass as well as surface GPS capabilities to mark your entry and exit points¹. On land, the Descent Mk2 series doubles as a premium multisport GPS smartwatch with multi-GNSS support, multiple sports apps, wrist-based heart rate monitoring², Pulse Ox sensor³, advanced training features, Garmin Pay payment service⁴, music storage, smart notifications⁵ for calls, texts and calendar alerts and more.

Garmin Descent Mk2/Mk2i Dive Smartwatch: Key Features

DIVE MODES

Get multiple dive modes for single and multiple gas dives (including nitrox and trimix), gauge, apnea, apnea hunt and closed-circuit rebreather.

CUSTOMIZABLE DIVE MODES

Add additional screens for each dive mode that features the fields you want to see.

SURFACE MULTI-GNSS

Track your entry and exit¹ points with advanced satellite connectivity.

DIVE LOG

Store and review data for up to 200 dives — and share via the Garmin Dive app

INREACH COMPATIBLE

Pair with inReach satellite communicators and the inReach dive case.

PERFORMANCE METRICS

View advanced training metrics that include running dynamics, heat- and altitude-adjusted VO2 max, recovery advisor and more³.

PACEPRO TECHNOLOGY

A first-of-its-kind feature helps keep you on pace with grade-adjusted guidance as you run a course.

SPORTS APPS

Use preloaded activity profiles for trail running, swimming, running, biking, hiking, rowing, skiing, golfing and more.

ANIMATED WORKOUTS

Easily follow animated workouts for cardio, strength, yoga and Pilates. View workouts right on your watch screen.

TOPO AND SKI MAPS

Use topographical maps to navigate your adventures and view run names and difficulty ratings for 2,000 worldwide ski resorts.

ABC SURFACE SENSORS

Navigate your next trail with ABC sensors, including an altimeter for elevation data, barometer to monitor weather and 3-axis compass.

WRIST-BASED HEART RATE

Optical heart rate³ technology gauges activity intensity as well as heart rate variability to calculate your stress level. It also tracks underwater without a heart rate strap.

PULSE OX SENSOR

For altitude acclimation or sleep monitoring, a Pulse Ox³ sensor uses light beams at your wrist to gauge how well your body is absorbing oxygen.

ALL DAY RESPIRATION

Track how you’re breathing throughout the day, during sleep and during breathwork and activities such as yoga.

TURN-BY-TURN NAVIGATION

Follow a route or course with help from turn-by-turn directions, which let you know ahead of time when the next turn is coming.

ROUND-TRIP ROUTING

Enter a distance you want to travel, and get suggested routes that will bring you back to your starting point. Trendline popularity routing helps you find the best local paths.

SAFETY AND TRACKING FEATURES

If you feel unsafe or if your watch senses an incident, assistance and incident detection features send your location to emergency services. Feature not available while in dive mode.

MUSIC

Store up to 2,000 songs, or access streaming music apps from your compatible services, including Spotify, Deezer and Amazon Music.

GARMIN PAY CONTACTLESS PAYMENTS

Breeze through checkout lines with Garmin Pay contactless payment solution⁴ through participating providers.

SMART NOTIFICATIONS

Receive emails, texts and alerts right on your wrist when paired with a compatible device.

CONNECT IQ STORE

Download custom watch faces, add data fields, and get apps and widgets from the Connect IQ Store.

AIR INTEGRATION (ONLY IN DESCENT MK2i)

Pair with Descent T1 transmitter for integrated pressure monitoring on up to 5 tanks via SubWave sonar data network⁶.

SUBWAVE SONAR (ONLY IN DESCENT MK2i)

Transmit data — such as remaining air time, air consumption rate and more — for you and other divers within a range of 10 meters⁶.

¹ GPS tracking does not work underwater
² See Garmin.com/ataccuracy
³ This is not a medical device and is not intended for use in the diagnosis or monitoring of any medical condition; see Garmin.com/ataccuracy. Pulse Ox not available in all countries.
⁴View current supported country, payment network and issuing bank information
⁵ See Garmin.com/ble
⁶ Additional equipment (sold separately) and device pairing required
⁷ When used with compatible sensor

Model	Garmin Descent Mk2, Garmin Descent Mk2i, Garmin Descent Mk2i Bundle Titanium Band, Garmin Descent Mk2i Bundle Black Band
Brand	Garmin

Specifications

Garmin Descent Mk2 & Descent Mk2i Specs

Garmin Descent Mk2 & Mk2i Specifications (pdf)

	Garmin Descent Mk2	Garmin Descent Mk2i
General
Lens Material	sapphire crystal	sapphire crystal
Bezel Material	stainless steel	Diamond-like Carbon (DLC) coated titanium
Case material	fiber-reinforced polymer with metal rear cover	fiber-reinforced polymer with metal rear cover
QuickFit™ watch band compatible	yes (26 mm)	yes (26 mm)
Strap material	silicone	silicone or titanium
Physical size	52 x 52 x 17.8 mm Fits wrists with the following circumference: Silicone band: 135-230 mm Extra long silicone band: 135-355 mm	52 x 52 x 17.8 mm Fits wrists with the following circumference: Silicone band: 135-230 mm Extra long silicone band: 135-355 mm Titanium bracelet: 135-220 mm
Color display	✔	✔
Display Size	1.4” (35.56 mm) diameter	1.4” (35.56 mm) diameter
Display Resolution	280 x 280 pixels	280 x 280 pixels
Display Type	sunlight-visible, transflective memory-in-pixel (MIP)	sunlight-visible, transflective memory-in-pixel (MIP)
Weight	silicone band: 103.8 g	silicone band: 99.6 g titanium band: 160.3 g
Battery life	Smartwatch: Up to 16 days Battery Saver Watch Mode: Up to 50 days GPS: Up to 48 hours GPS + Music: Up to 15 hours Max Battery GPS Mode: Up to 96 hours Dive mode: Up to 80 hours Expedition GPS Activity: up to 35 days	Smartwatch: Up to 16 days Battery Saver Watch Mode: Up to 50 days GPS: Up to 48 hours GPS + Music: Up to 15 hours Max Battery GPS Mode: Up to 96 hours Dive mode: Up to 80 hours Dive mode with Descent T1: Up to 32 hours Expedition GPS Activity: up to 35 days
Water rating	Dive (100 meters)	Dive (100 meters)
Memory/History	32 GB	32 GB
Clock Features
Time/date	✔	✔
GPS Time Sync	✔	✔
Automatic daylight saving time	✔	✔
Alarm clock	✔	✔
Timer	✔	✔
Stopwatch	✔	✔
Sunrise/sunset times	✔	✔
Health Monitoring
Wrist-based Heart Rate (constant, every second)	✔	✔
Daily Resting Heart Rate	✔	✔
Abnormal Heart Rate Alerts	yes (high and low)	yes (high and low)
Respiration rate (24×7)	✔	✔
Pulse Ox Blood Oxygen Saturation	yes (spot-check, and optional all-day acclimation and in sleep)	yes (spot-check, and optional all-day acclimation and in sleep)
Fitness Age	yes (in app)	yes (in app)
Body Battery™ Energy Monitor	✔	✔
All-day Stress	✔	✔
Relaxation breathing timer	✔	✔
Sleep	✔	✔
Sleep score and insights	✔	✔
Hydration	yes (in Garmin Connect™)	yes (in Garmin Connect™)
Women’s Health	yes (in Garmin Connect™)	yes (in Garmin Connect™)
Sensors
GPS	✔	✔
GLONASS	✔	✔
Galileo	✔	✔
Garmin Elevate™ wrist heart rate monitor	✔	✔
Barometric altimeter	✔	✔
Compass	✔	✔
Gyroscope	✔	✔
Accelerometer	✔	✔
Thermometer	✔	✔
Depth sensor	✔	✔
Pulse Ox Blood Oxygen Saturation Monitor	✔	✔
Daily Smart Features
Connectivity	Bluetooth® Smart, ANT+®, Wi-Fi®	Bluetooth® Smart, ANT+®, Wi-Fi®, Subwave™
Connect IQ™ (downloadable watch faces, data fields, widgets and apps)	✔	✔
Smart Notifications	✔	✔
Text response/reject phone call with text (Android™ only)	✔	✔
Calendar	✔	✔
Weather	✔	✔
Battery saver (customizable low power watch)	✔	✔
Controls smartphone music	✔	✔
Plays and controls watch music	✔	✔
Music storage	up to 2,000 songs	up to 2,000 songs
Find My Phone	✔	✔
Find My Watch	✔	✔
VIRB® Remote	✔	✔
Smartphone compatibility	iPhone®, Android™	iPhone®, Android™
Pairs with Garmin Connect™ Mobile	✔	✔
Garmin Pay™	✔	✔
Safety and Tracking Features
LiveTrack	✔	✔
Group LiveTrack	✔	✔
Live Event Sharing	✔	✔
Incident Detection during select activities	✔	✔
Assistance	✔	✔
Tactical Features
Stealth Mode	x	✔
Dual grid coordinates	✔	✔
Kill switch	x	✔
Diving Features
Dive activity maximum operating depth	100 meters	100 meters
Single-gas mode	✔	✔
Multi-gas mode	✔	✔
Gauge mode	✔	✔
APNEA mode	✔	✔
APNEA hunt mode	✔	✔
Decompression model	Bühlmann ZHL-16c with gradient factors	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.	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	Up to 2.0 with customizable deco PO2 setting
Subwave™ Support	x	✔
Air integration	x	yes (via Subwave™)
Number of transmitters supported	x	5
Gas time remaining	x	✔
Gas consumption rate	x	✔
Auto start/end dive	✔	✔
Custom end-dive timeout	yes (20s to 10 m)	yes (20s to 10 m)
Safety Stop	yes (customizable off/3min/5min)	yes (customizable off/3min/5min)
Deep Stops	yes (using custom gradient factors)	yes (using custom gradient factors)
Customizable conservatism	yes (low/medium/high or custom using gradient factors)	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)	yes (basic NDL + multi-gas deco planner)
Tides	✔	✔
Backlight	yes (configurable time and intensity; auto-on at depth)	yes (configurable time and intensity; auto-on at depth)
Automatically saves dive entry and exit locations	✔	✔
Custom dive data screens	✔	✔
Sync dive log to Garmin Dive™ Mobile app	✔	✔
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	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	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)	yes (can be disabled prior to dive with user acknowledgement)
Residual Tissue Loading Reset	yes (on the surface with user acknowledgement)	yes (on the surface with user acknowledgement)
Surface diver status widget	yes (surface interval, N2/HE loading, CNS, OTU and tissue compartment status)	yes (surface interval, N2/HE loading, CNS, OTU and tissue compartment status)
Boating Features
Available Boating Profiles	Boating	Boating
Built-in barometer and tide tables	✔	✔
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)	✔	✔
Calories burned	✔	✔
Floors climbed	✔	✔
Distance traveled	✔	✔
Intensity minutes	✔	✔
TrueUp™	✔	✔
Move IQ™	✔	✔
Garmin Connect™ Challenges app	yes (optional Connect IQ app)	yes (optional Connect IQ app)
Gym & Fitness Equipment
Automatic rep counting	✔	✔
Cardio workouts	✔	✔
Available gym activity profiles	Strength, Cardio and Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Breathwork, Pilates, Yoga	Strength, Cardio and Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Breathwork, Pilates, Yoga
Strength workouts	✔	✔
Yoga workouts	✔	✔
Pilates workouts	✔	✔
On-screen workout animations	✔	✔
Training, Planning and Analysis 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)	yes (with compatible accessory)
HR Broadcast (broadcasts HR data over ANT+™ to paired devices)	✔	✔
Respiration rate (during exercise)	yes (with compatible accessory)	yes (with compatible accessory)
GPS speed and distance	✔	✔
Customizable data pages	✔	✔
Customizable activity profiles	✔	✔
Auto Pause®	✔	✔
Interval training	✔	✔
Advanced workouts	✔	✔
Downloadable training plans	✔	✔
Power Modes – customizable in-activity battery settings	✔	✔
Auto Lap®	✔	✔
Manual lap	✔	✔
Configurable lap alerts	✔	✔
Heat and altitude acclimation	✔	✔
VO2 Max (Run)	✔	✔
Training Status	✔	✔
Training Load	✔	✔
Training load focus	✔	✔
Training Effect	✔	✔
Training Effect (anaerobic)	✔	✔
Primary benefit (Training Effect labels)	✔	✔
Improved recovery time	✔	✔
Daily suggested workouts	✔	✔
Custom alerts	✔	✔
Audio prompts	✔	✔
Finish time	✔	✔
Virtual Partner	✔	✔
Race an Activity	✔	✔
Auto multisport activities	✔	✔
Manual multisport activities	✔	✔
Course guidance	✔	✔
Garmin Live Segments	✔	✔
Strava Live Segments	✔	✔
Round-trip course creator (running/cycling)	✔	✔
Trendline™ Popularity Routing	yes (available as a wearable map theme)	yes (available as a wearable map theme)
Touch and/or button lock	✔	✔
Hot keys	✔	✔
Auto scroll	✔	✔
Activity history on watch	✔	✔
Physio TrueUp	✔	✔
Running Features
Available run profiles	Running, Treadmill Running, Indoor Track Running, Trail Running	Running, Treadmill Running, Indoor Track Running, Trail Running
GPS-based distance, time and pace	✔	✔
Running dynamics	yes (with compatible accessory)	yes (with compatible accessory)
Vertical oscillation and ratio	yes (with compatible accessory)	yes (with compatible accessory)
Ground contact time and balance	yes (with compatible accessory)	yes (with compatible accessory)
Stride length (real time)	yes (with compatible accessory)	yes (with compatible accessory)
Cadence (provides real-time number of steps per minute)	✔	✔
Performance condition	✔	✔
Lactate threshold	yes (with compatible accessory)	yes (with compatible accessory)
PacePro™ Pacing Strategies	✔	✔
Run workouts	✔	✔
Trail run auto climb	✔	✔
Race predictor	✔	✔
Foot pod capable	✔	✔
Run/Walk/Stand detection	✔	✔
Golfing Features
Preloaded with 42,000 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	automatic
Digital scorecard	✔	✔
Custom targets	✔	✔
Stat tracking (strokes, putts per round, greens and fairways hit)	✔	✔
Garmin AutoShot™	✔	✔
Full vector map	✔	✔
Auto CourseView updates	✔	✔
Green View with manual pin position	✔	✔
Hazards and course targets	✔	✔
PinPointer	✔	✔
PlaysLike distance	✔	✔
Handicap scoring	✔	✔
TruSwing™ compatible	✔	✔
Round timer/odometer	✔	✔
Automatic club tracking compatible (requires accessory)	✔	✔
Outdoor Recreation
Available outdoor recreation profiles	Hiking, Indoor Climbing, Bouldering, Climbing, Mountain Biking, Skiing, Snowboarding, XC Classic Skiing, Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Hunting, Kiteboarding, Windsurfing, Snowshoeing, Horseback Riding, Jumpmaster, Tennis, Pickleball, Tactical	Hiking, Indoor Climbing, Bouldering, Climbing, Mountain Biking, Skiing, Snowboarding, XC Classic Skiing, Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Hunting, Kiteboarding, Windsurfing, Snowshoeing, Horseback Riding, Jumpmaster, Tennis, Pickleball, 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	✔	✔
ClimbPro™ Ascent Planner	✔	✔
Vertical speed	✔	✔
Total ascent/descent	✔	✔
Future elevation plot	✔	✔
Preloaded topographical maps	✔	✔
Preloaded road and trail maps	✔	✔
Preloaded ski resort maps	✔	✔
Downloadable cartography support	✔	✔
GPS coordinates	✔	✔
Sight ‘N Go	✔	✔
Area calculation	yes (via Connect IQ™)	yes (via Connect IQ™)
Hunt/fish calendar	yes (via Connect IQ™)	yes (via Connect IQ™)
Projected waypoint	✔	✔
Sun and moon information	yes (via Connect IQ™)	yes (via Connect IQ™)
XERO™ Locations	✔	✔
Expedition GPS Activity	✔	✔
Tides	✔	✔
Cycling Features
Cycle Map (routable cycling-specific street map)	✔	✔
Available cycling profiles	Biking, Indoor Biking, Mountain Biking, Triathlon	Biking, Indoor Biking, Mountain Biking, Triathlon
Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)	✔	✔
Courses	✔	✔
MTB Grit & Flow	✔	✔
Bike lap and lap maximum power (with power sensor)	✔	✔
Race an activity	✔	✔
FTP (Functional Threshold Power)	yes (with compatible accessory)	yes (with compatible accessory)
Compatible with Vector™ and Rally™ (power meters)	✔	✔
Power meter compatible	✔	✔
Advanced cycling dynamics	✔	✔
Compatible with Varia Vision™ (head-mounted display)	✔	✔
Compatible with Varia™ radar (rear-facing radar)	✔	✔
Compatible with Varia™ lights	✔	✔
Speed and cadence sensor support (w/sensor)	✔	✔
Swimming Features
Available swim profiles	Pool Swimming, Open Water Swimming, Swimming/Running	Pool Swimming, Open Water Swimming, Swimming/Running
Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, swim efficiency (SWOLF), calories)	✔	✔
Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories)	✔	✔
Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only)	✔	✔
Drill logging (pool swim only)	✔	✔
Basic rest timer (up from 0) (pool swim only)	✔	✔
“Repeat on” rest timer (pool swim only)	✔	✔
Auto rest (pool swim only)	✔	✔
Time and distance alerts	✔	✔
Pacing alerts (pool swim only)	✔	✔
Countdown start (pool swim only)	✔	✔
Pool swim workouts	✔	✔
Critical swim speed	✔	✔
Underwater wrist-based heart rate	✔	✔
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™ and HRM-Pro™)	yes (with HRM-Tri™, HRM-Swim™ and HRM-Pro™)
Kid Activity Tracking Features
Toe-to-Toe™ Challenges app	yes (optional Connect IQ Toe-to-Toe™ Challenges app)	yes (optional Connect IQ Toe-to-Toe™ Challenges app)
Connectivity
Smart trainer control	✔	✔

Product Comparison

How is the Descent Mk2/Mk2i different from the Descent Mk1?

QUALITY BY DESIGN: Advanced, watch-style dive computer with 1.4” color sunlight-readable display (36% larger than previous model) in an elegant yet rugged design
DIVE MODES: Get multiple dive modes for single and multiple gas dives (including nitrox and trimix), gauge, apnea, apnea hunt and closedcircuit rebreather; customize or add additional screens for each dive mode that features the fields you want to see
SURFACE MULTI-GNSS: Track your entry and exit points¹ with advanced satellite connectivity
AIR INTEGRATION in Descent Mk2i: Pair Descent Mk2i with the Descent T1 transmitter for integrated pressure monitoring on up to 5 tanks via the SubWave sonar data network
SUBWAVE SONAR in Descent Mk2i: Transmit data — such as remaining air time, air consumption rate and more — for you and other divers within a range of up to 10 meters
PULSE OX SENSOR: For altitude acclimation, sleep monitoring or between apnea/apnea hunt activities on the surface, a Pulse Ox³ sensor uses light beams at your wrist to gauge how well your body is absorbing oxygen
PERFORMANCE METRICS: View advanced training metrics that include running dynamics⁷, heat- and altitude-adjusted VO2 max, recovery advisor and more²
PACEPRO FEATURE: PacePro is a first-of-its-kind feature that helps keep you on pace with grade-adjusted guidance as you run a course
ANIMATED WORKOUTS: Easily follow animated workouts for cardio, strength, yoga and Pilates; view workouts right on your watch screen
TOPO AND SKI MAPS: Use topographical maps to navigate your adventures, and view run names and difficulty ratings for 2,000 worldwide ski resorts
ALL-DAY RESPIRATION: Track how you’re breathing throughout the day, during sleep and during breathwork and activities such as yoga