Garmin Descent™ Mk2i

Battery for days, up to 16 days in smartwatch mode to be exact. More battery means knowing more about your overall health and performance. Small on the wrist, big on features. This premium dive-computer smartwatch works with your phone. All your health and fitness stats in one place — no subscription required. The Air-integrated dive computer for both of your worlds. Monitor your gas and depth with the advanced, watch-style dive computer that comes with multisport training and smart features.

FEATURES

Body Battery Energy Monitoring
Monitors your stress, heart rate, sleep and activity level to estimate your body’s energy reserve and help you plan rest or push harder.

Dive Modes & Air-Integration
Includes multiple dive modes—single/multi-gas, nitrox, trimix, gauge, apnea—and connects with the Descent T1 transmitter for tank pressure via SubWave sonar.

Heart Rate
Continuously samples your wrist-based heart rate and alerts you if your resting heart rate stays unusually high or unusually low.

Sleep Monitoring & Advanced Score
Gives you a sleep score and breakdown of your sleep stages (light, deep, REM) plus respiration and Pulse Ox data to support recovery.

Battery Life
Smartwatch mode - up to 16 days; GPS mode - up to 48 hours; Dive mode up to 80 hours; Max Battery GPS mode up to 96 hours; Battery saver mode up to 50 days.

Sunlight-Visible Display
Large 1.4″ colour display that remains clear even in bright sunlight; easy to read underwater or above water.

Multi-GNSS Navigation
Supports GPS, GLONASS, Galileo for surface tracking, back-to-start navigation and route planning for both diving and everyday use.

Built-in Sports Apps
Offers advanced training metrics for running, cycling, swimming, strength, hiking plus dive logging, and underwater metrics.

Smart Notifications & Music
Receive emails, texts and alerts directly on your wrist when paired with your smartphone; store music for phone-free listening.

Garmin Pay
Use contactless payment directly from your wrist with Garmin Pay at supported locations.

Water Rating
Rated for diving and swim use — certified to dive depths up to 100 metres (10 ATM) per structure.

Durability & Tactical Features
Built from titanium bezel, fibre-reinforced polymer case and scratch-resistant sapphire glass; includes dive-specific alarms and features tailored for underwater exploration.

SPECIFICATIONS

Watch Display Type: Sunlight-visible, transflective memory-in-pixel (MIP) colour display

Touchscreen: Yes (plus button controls)

Water Rating: Dive, up to 100 metres / 10 ATM

Strap Material: Silicone or titanium band options

Lens Material: Sapphire crystal

Bezel / Case Material: DLC-coated titanium bezel with fibre-reinforced polymer case

Quick Release Bands: Yes (26 mm standard width)

Physical Size: 52 × 52 × 17.8 mm

Fits Wrists: Standard adult size (approx. 135–215 mm circumference)

Weight: Approx. 99.6 g (with silicone strap)

Display Size: 1.4″ (35.56 mm) diameter

Display Resolution: 280 × 280 pixels

Battery Life: Smartwatch mode – up to 16 days; GPS mode – up to 48 hours; Max Battery GPS – up to 96 hours; Dive mode – up to 80 hours; Battery Saver mode – up to 50 days

Charging Interface: Proprietary charging/data cable

Memory / History: 32 GB internal storage for dive logs, activity history

Clock Features: Time/date, GPS time sync, automatic daylight saving time, alarm, timer, stopwatch, sunrise/sunset times

Sensors: Wrist-based heart rate monitor, Pulse Ox sensor, barometric altimeter, compass, gyroscope, accelerometer, thermometer, depth sensor

Connectivity: Bluetooth® Smart, ANT+®, Wi-Fi®

Smartphone Compatibility: iPhone®, Android™

Smart Features: Smart notifications, text response/reject call (Android only), calendar, weather, music playback/control, Find My Phone/Watch, Garmin Connect™ Mobile compatibility

Health & Wellness Monitoring: Continuous HR, resting HR, abnormal HR alerts, respiration rate, Body Battery™, all-day stress tracking, sleep monitoring/score, hydration tracking, women’s health tracking

Activity Profiles: Trail running, cycling (indoor/outdoor), swimming (pool/open-water), strength training, HIIT, hiking, skiing, outdoor recreation + dive profiles

Activity Tracking Features: Step counter, move alerts, auto goal, calories burned, floors climbed, intensity minutes, TrueUp™, Move IQ™

Training & Analysis Features: Custom data pages, downloadable training plans, HR zones, % HR max, auto pause, auto lap, VO₂ max (run), advanced workout analytics

Running Features: GPS-based distance/time/pace, cadence, run/walk detection

Cycling Features: Time, distance and HR alerts; supports external speed/cadence sensors

Swimming Features: Pool metrics (lengths, distance, pace, stroke count, SWOLF); includes underwater HR where supported

Golfing Features: Optional via Golf profile if supported by region

Outdoor Recreation: Back to Start navigation, sun & moon info, breadcrumb routing, mountain-trail data

Safety & Tracking Features: Incident detection (select activities), LiveTrack, Assistance message sending

Kid Activity Tracking: Optional via Garmin Connect™ Challenges

Battery Runtime (General Use): Up to 16 days typical

Durability: Built for the extremes — designed for underwater, outdoor rugged use, water-resistant, shock-resistant and weather-resistant

In the Box: Garmin Descent™ Mk2i watch, charging/data cable, documentation