Garmin Descent MK3i

The Garmin Descent MK3i is a premium dive computer and multisport GPS smartwatch built for divers, adventurers, and performance-focused users who want advanced underwater functionality, elite training insights, and everyday smartwatch convenience in one rugged device. Designed with a bright AMOLED display, sapphire crystal lens, DLC-coated titanium bezel, and 200 metre dive rating, it combines serious dive capability with premium materials and broad multisport support. With multi-band GPS, air integration support, music storage, Garmin Pay, and advanced health and recovery tracking, it is made for life above and below the surface.

FEATURES

Advanced Dive Computer Performance
Built for serious diving with a 200 metre dive rating, dedicated dive mode, dive mode with air integration support, and extended underwater battery performance.

Premium Rugged Construction
Features a sapphire crystal lens, DLC-coated titanium bezel, fibre-reinforced polymer case with titanium rear cover, and QuickFit band compatibility for a durable and premium finish.

AMOLED Touchscreen Display
Equipped with a bright 1.4-inch AMOLED touchscreen display for clear readability and smooth interaction on land and underwater.

Elite Training and Recovery Tools
Includes improved daily suggested workouts, training readiness, improved training status, HRV status, recovery time, realtime stamina, endurance score, and training load analysis for deeper performance tracking.

Comprehensive Smart and Outdoor Features
Supports Garmin Pay, music storage, multi-band GPS, PartyBus network capabilities, advanced navigation tools, Connect IQ support, and smart notifications for daily convenience.

Built for Multisport and Expedition Use
Supports a wide range of profiles including triathlon, running, cycling, swimming, hiking, skiing, watersports, tactical use, and more for all-around performance and adventure tracking.

SPECIFICATIONS

Model: Descent MK3i

Display Type: AMOLED

Touchscreen: Yes

Water Rating: Dive, 200 metres

Lens Material: Sapphire crystal

Bezel Material: Diamond-like carbon DLC coated titanium

Case Material: Fibre-reinforced polymer with titanium rear cover

Band Material: Silicone or DLC coated titanium

QuickFit Watch Band Compatible: Yes, 26 mm

Physical Size: 51 x 51 x 16.4 mm

Fit Range: Silicone band 135-230 mm, extra long silicone band 135-355 mm, titanium bracelet 135-220 mm

Weight Without Band: 77.8 g

Weight With Silicone Band: 105.6 g

Weight With Titanium Band: 165.9 g

Display Size: 35.56 mm (1.4") diameter

Display Resolution: 454 x 454 pixels

Battery Life Smartwatch Mode: Up to 25 days, 10 days always-on

Battery Saver Watch Mode: Up to 31 days

Battery Life GPS Only: Up to 76 hours, 56 hours always-on

Battery Life All Satellite Systems: Up to 55 hours, 43 hours always-on

Battery Life All Satellite Systems + Multi-Band: Up to 48 hours, 38 hours always-on

Battery Life All Satellite Systems + Music: Up to 17 hours

Max Battery GPS: Up to 118 hours

Expedition GPS: Up to 24 days

Dive Mode Battery Life: Up to 66 hours

Dive Mode With Air Integration: Up to 40 hours

Charging Method: Garmin proprietary clip charger

Memory / History: 32 GB

Sleep Score and Insights: Yes

Daily Suggested Workouts: Improved

Pulse Ox Blood Oxygen Saturation: Yes

PartyBus Network Capabilities: Yes

Garmin Pay: Yes

Multi-Band GPS: Yes

Music Storage: Yes

Training Readiness: Yes

Training Status: Improved

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

Health Monitoring: Wrist-based heart rate, respiration rate, fitness age in app, Body Battery, all-day stress, relaxation breathing timer, breathwork, advanced sleep, sleep coach, nap detection, hydration, women’s health, Health Snapshot, skin temperature, jet lag adviser

Sensors: GPS, GLONASS, Galileo, SatIQ technology, Garmin Elevate wrist heart rate monitor, Pulse Ox monitor, barometric altimeter, compass, gyroscope, accelerometer, thermometer with tempe sensor required, ambient light sensor

Connectivity: Bluetooth, ANT+, Wi-Fi

Smart Features: Connect IQ, on-device Connect IQ store, smart notifications, text response and reject phone call with text for Android only, image viewing from notifications on watch for Android only, calendar, weather forecasts, realtime settings sync with Garmin Connect Mobile, battery saver, plays and controls watch music, find my phone, find my watch, find my phone during GPS activity, VIRB camera remote, smart trainer control, Garmin Connect Mobile compatibility, stocks

Smartphone Compatibility: iPhone, Android

Gym Profiles: Strength, HIIT, cardio, elliptical training, stair stepping, floor climbing, indoor rowing, jump roping

Multisport Profiles: Triathlon, swimming/running

Wellness Profiles: Walking, Pilates, yoga, indoor walking

Indoor Running Profiles: Treadmill running, indoor track running

Outdoor Running Profiles: Running, outdoor track running, trail running, ultra running, obstacle course

Outdoor Recreation Profiles: Hiking, indoor climbing, bouldering, climbing, hunting, horseback riding, golfing, disc golf, archery

Cycling Profiles: Biking, road biking, mountain biking, gravel biking, bike commuting, bike touring, eBiking, eMountain biking, indoor biking, cyclocross, BMX

Swim Profiles: Pool swimming, open water swimming

On The Water Profiles: Stand up paddleboarding, rowing, kayaking, surfing, kiteboarding, windsurfing, fishing, boating, sailing, sail racing, water skiing, wakeboarding, wakesurfing, tubing, sailing expedition, whitewater, snorkeling

Motor Sports Profiles: Motorcycling, overlanding, motorcrossing, ATVing, snowmobile

Racket Sports Profiles: Tennis, pickleball, badminton, squash, table tennis, padel, platform tennis, racquetball

Snow and Winter Profiles: Skiing, snowboarding, backcountry snowboarding, XC classic skiing, backcountry skiing, ice skating, snowshoeing, XC skate skiing

Sport Profiles: Basketball, volleyball, field hockey, ice hockey, soccer, football, lacrosse, rugby, ultimate disc, cricket, softball, baseball

In The Ring Profiles: Boxing, mixed martial arts

Other Activity Profiles: Jumpmaster, tactical, inline skating

Safety Features: Incident detection during select activities, incident detection alert on phone for wearables, LiveTrack, Group LiveTrack, live event sharing for Android only

Tactical Features: Xero locations

Miscellaneous Features: Gaming activity, GameOn app compatible

Boating Features: Wearable trolling motor remote

Activity Tracking: Step counter, move alerts, auto goal, calories burned, floors climbed, intensity minutes, TrueUp, Move IQ, Garmin Connect Challenges app

Fitness Features: Strength workouts, HIIT workouts, yoga workouts, Pilates workouts, on-screen workout animations, on-screen workout muscle map, automatic rep counting

Training Features: Customisable screens, downloadable training plans, course guidance, HR zones, HR alerts, HR calories, % HR max, % HRR, recovery time, auto max HR, race glance widget, HRV status, HRV stress test with compatible accessory, HR broadcast using ANT+ or BLE, respiration rate during exercise with compatible accessory, GPS speed and distance, customisable activity profiles, Auto Pause, interval training, improved interval support, advanced workouts, HRM running pace and distance, Auto Lap, manual lap, rest timer, heat and altitude acclimation, VO2 max run, VO2 max trail run, realtime stamina, endurance score, training load, training load focus, training effect, anaerobic training effect, primary benefit labels, customisable alerts, multisport auto transition, finish time, race an activity, auto multisport activities, Garmin Live Segments, Strava Live Segments, round-trip course creator, Trendline popularity routing, touch and/or button lock, hot keys, auto scroll, activity history on watch, Physio TrueUp, unified training status

Running Features: GPS-based distance, time and pace, running dynamics, vertical oscillation and ratio, ground contact time and balance with accessory, stride length, cadence, running power, grade-adjusted pace, performance condition, lactate threshold with compatible accessory, PacePro pacing strategies, run workouts, hill score, trail run auto climb, race predictor, foot pod capable, run/walk/stand detection

Golf Features: Preloaded with 43,000 courses worldwide, yardage to front, middle and back of green, yardage to layups and doglegs, automatic shot distance measurement, digital scorecard, custom targets, stat tracking, Garmin AutoShot, full vector map, auto CourseView updates, Green View with manual pin position, hazards and course targets, PinPointer, handicap scoring, swing tempo, tempo training, round timer and odometer, automatic club tracking compatible with accessory, wind speed and direction with Golf app connection, virtual caddie, pairs with Garmin Golf app, tournament legal, Green Contours with Garmin Golf membership

Outdoor Recreation Features: Point-to-point navigation, breadcrumb trail in real time, back to start, TracBack, UltraTrac mode, around me mode, reference point, up ahead, NextFork navigation, elevation profile, distance to destination, barometric trend indicator with storm alert, ClimbPro ascent planner, vertical speed, rest timer for ultra run only, auto rest, future elevation plot, preloaded road and trail maps, preloaded ski resort maps, downloadable cartography support, GPS coordinates, Sight 'N Go, area calculation via Connect IQ, fish forecast via Connect IQ, projected waypoint, sun and moon information via Connect IQ, expedition GPS activity via Connect IQ, tides via Connect IQ, tides glance

Cycling Features: Courses, bike lap and lap maximum power with power sensor, race an activity, alerts, FTP with compatible accessory, power curve and % FTP workouts, Garmin Cycle Map, MTB grit and flow, compatible with Vector and Rally power meters, compatible with Varia Vision, compatible with Varia radar, compatible with Varia lights, speed and cadence sensor support using ANT+ or BLE, power meter compatible, Power Guide

Swimming Features: Open-water swim metrics, pool swim metrics, stroke type detection, drill logging, basic rest timer, repeat on rest timer, auto rest, time and distance alerts, pacing alerts, countdown start, pool swim workouts, critical swim speed, underwater wrist-based heart rate, heart rate from external HRM with HRM-Tri, HRM-Swim, HRM-Pro, or HRM-Pro Plus

Kid Activity Feature: Toe-to-Toe Challenges app via optional Connect IQ Toe-to-Toe Challenges app