Enduro 4

Coming Soon

Ultraperformance GPS Smartwatch

Part Number 010-04799-04

ONLINE STORE

Feature
Specs
In The Box
Update
Accessories
Compatible Devices

ENDURO 4 IS BUILT FOR THE EXTREMES

DURABLE SAPPHIRE LENS | LED FLASHLIGHT | FABRIC BAND

ULTRALONG BATTERY LIFE

SOLAR CHARGING SUPPORTS UP TO 90 DAYS OF BATTERY LIFE ¹

FOLLOW THE PATH OR GO YOUR OWN WAY

MULTICONTINENT TOPOGRAPHIC MAPS

TAKE ON THE TRAIL LIKE NEVER BEFORE

WITH GRADE-ADJUSTED PACE-BASED WORKOUTS

PUSH FURTHER AND PERFORM BETTER

100+ ACTIVITY PROFILES | ENHANCED TRAINING TOOLS

EVERY ATHLETE HAS A STORY. YOURS IS AN EPIC.

ANALYZE AND SHARE MULTIDAY HEALTH AND ACTIVITY DATA IN ONE VIEW

A NEW EPIC AWAITS

With the Enduro 4 ultraperformance GPS smartwatch, every activity is an adventure. Push further than ever with a longer battery life, lightweight design, and enhanced performance and training features.

SOLAR POWER PROVIDES EXTREME BATTERY LIFE

LIGHTWEIGHT DESIGN WITH COMFORTFIT BAND

ADVANCED TRAINING AND PERFORMANCE TOOLS

24/7 HEALTH AND WELLNESS FEATURES

BUILT-IN LED FLASHLIGHT TO GUIDE THE ADVENTURE

ANALYZE AND SHARE MULTIDAY ACTIVITY DATA WITH GARMIN EPIC

WHAT YOU'LL LOVE

ULTRAPERFORMANCE DESIGN

A lightweight design with a rugged titanium bezel and sapphire lens combined with a ComfortFit fabric band ensures Enduro 4 remains light on the wrist.

EXTREME BATTERY

This watch provides up to 90 days of battery life, enhanced by solar charging and comprehensive power modes¹ so you can have all the tools needed for your longest races or adventures. Get up to 320 hours of battery life in activity mode with solar charging².

TRAIL-READY

Grade-adjusted pace-based workouts and rolling pace ensure you exert the proper energy on hills. Pack weight accounts for weight you may be carrying during trail runs and hikes, and course planner lets you map out aid stations, checkpoints and more.

ADVANCED TRAINING TOOLS

Access more than 100 activity profiles plus advanced training and performance tools. Enhanced stamina metrics show how your endurance is changing based on your fitness and training history.

FIND YOUR WAY

Multicontinent TopoActive maps are smoother and more intuitive, offering advanced navigational tools such as dynamic round-trip routing, NextFork map guide, grade-adjusted running pace and more.

GARMIN EPIC

This feature lets you record, review and share your performance and health data curves from a multiday activity in a seamless view and gain insights to help optimize your training and racing.

SEEK THE EXTREMES

PERFORMANCE

STAMINA METRICS

This feature helps you visualize the impact of your endurance training, based on your fitness gains and training history.

GRADE-ADJUSTED PACE-BASED WORKOUTS

Manage your workout effort with pace targets adjusted to the incline or decline of your terrain.

GRADE-ADJUSTED ROLLING PACE

Get a continually updated average pace with grade adjustments.

TRAIL RUN VO2 MAX

Estimate VO2 max by adjusting for varying trail and terrain conditions.

ULTRARUN ACTIVITY

Use the ultrarun activity with rest timer, and log the time you spend at aid stations.

ADVENTURE RACING ACTIVITY

See key stats during a race. GPS is recorded but is unavailable for viewing, in keeping with adventure race rules.

COURSE PLANNER

Add cut-off times, notes, rest plans, checkpoints and aid stations for a race.

PACEPRO TECHNOLOGY

Plan race-day strategy with GPS-based pace guidance for a selected course or distance.

CLIMBPRO FEATURE

See real-time information on your current and upcoming climbs on downloaded courses.

TRAINING READINESS

From the moment you wake up, get a readiness score based on your sleep quality³, recovery, training load and more, so you can determine if it’s a good day to go hard — or take it easy.

TRAINING STATUS

Get insight, and know whether you’re training productively, peaking or strained.

GARMIN COACH

Reach your goals with Garmin Coach training plans for running, cycling, strength and fitness; some even adapt based on your health and fitness metrics.

VISUAL RACE PREDICTOR

Get an estimate of what your pace could be for a 5K, 10K, half-marathon and marathon.

ALTITUDE AND HEAT ACCLIMATION

See how you’re holding up to the current elevation or heat based on your health metrics.

PERFORMANCE METRICS

Gauge your performance with advanced training metrics such as VO2 max, training load and more.

ENDURANCE SCORE

Measuring your ability to sustain prolonged efforts, this feature helps you see how training from your athletic pursuits impacts your overall endurance.

HILL SCORE

Measure your capability for running uphill, and evaluate your progress over time based on your VO2 max and training history.

AUTOMATIC REST TIMER

Automatically track your time spent at an aid station or checkpoint.

RACE WIDGET

Prepare for your next race with training tips, personalized daily suggested workouts and more.

RECOVERY TIME

Know how long you need to recover before your next high-effort workout based on your latest training.

WRIST-BASED RUNNING DYNAMICS

View crucial running metrics such as cadence, stride length, ground contact time and more.

RUNNING ECONOMY

Measure your overall energy efficiency while running — using long-term running volume, stride length and step speed loss — when you pair your watch with the HRM 600 monitor (sold separately).

RUNNING TOLERANCE

Better understand the impact each run has on your body, and get a recommended weekly maximum mileage so you can keep training effectively without taking on too much.

STEP SPEED LOSS

Improve your running form, and understand how much you slow down when your foot hits the ground when you pair your watch with the HRM 600 monitor (sold separately).

PROJECTED RACE TIME

This race-time prediction is what your race time and pace could be if you keep training well all the way through to the race date entered.

NAVIGATION

SATIQ TECHNOLOGY

Get superior positioning accuracy with multi-band GPS while optimizing battery life.

DYNAMIC ROUND-TRIP ROUTING

Enter how far you want to go, and get suggested routes that will bring you back. If you break off course, your watch will map a new one that hits the same mileage.

MULTICONTINENT TOPO MAPS

Preloaded TopoActive maps from around the world keep your explorations on track.

NEXTFORK MAP GUIDE

Navigate with a quick glance, and see the distance to the next intersection and the trail name.

COURSES WITH TURN-BY-TURN DIRECTIONS

Create or find existing courses in the Garmin Connect smart-device app, or sync from your favorite third-party platforms and get turn-by-turn directions.

ABC SENSORS

Navigate your next trail with an altimeter, barometer and 3-axis electronic compass.

UP AHEAD FEATURE

Get at-a-glance awareness for selected POI checkpoints ahead — such as aid stations — during a race.

SKIVIEW MAPS

View run names and difficulty ratings for more than 2,000 preloaded ski resorts worldwide.

GOLF COURSE MAPS

Get preloaded full-color CourseView maps for more than 43,000 golf courses around the world.

ACTIVITIES

PACK WEIGHT

Pack weight considers extra carrying weight during running, hiking and walking activities.

TRACK YOUR ACTIVITIES

Use preloaded activity profiles to get data and insight from your active pursuits. Even track team sport activities such as soccer, football, racquet sports and more.

TRIATHLON AND MULTISPORT PROFILES

Automatically record splits with built-in profiles for triathlons, duathlons, brick workouts and swim/runs, or you can create your own.

CROSS-TRAINING

Download the free HIIT, strength, cardio, yoga, Pilates and mobility workouts so you can switch up how you sweat.

BUILT-IN SPORTS APPS

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

DAILY SUGGESTED WORKOUTS

View your entire week of daily suggested workouts, which adapt after every run or ride.

ANIMATED WORKOUTS

Follow animated workouts for cardio, strength, yoga and Pilates on the watch screen.

BACKCOUNTRY SKI AND SNOWBOARD

Automatically track ascents and descents along with how much time you spend between runs.

XC SKI POWER

Measure exercise load when paired with an HRM-Pro Plus heart rate monitor (sold separately).

SURF ACTIVITY

Record waves surfed, maximum speed reached, distance traveled and more. Use Surfline Sessions technology to capture video of waves you ride in front of a Surfline camera⁴.

MTB DYNAMICS

Track the details of your ride with specialized Grit and Flow measurements.

ROWING ACTIVITY

Record indoor or outdoor rowing workouts. For indoor, VO2 max helps gauge cardio fitness and training impact (requires a power meter-equipped rowing machine).

RUCKING ACTIVITY

Set a target metric, create a custom workout, and change pack weight during the activity.

HEALTH

MORNING REPORT

Get a customizable overview of your sleep, training outlook, HRV status, weather and more as soon as you wake up.

EVENING REPORT

Prepare for tomorrow before bed with a reminder of sleep need, tomorrow’s workout, weather and events.

HRV STATUS

Gain a better understanding of your overall health, recovery and training performance while you sleep.

WRIST-BASED HEART RATE

The watch constantly samples your heart rate³ to help you gauge how hard you work during activities.

GARMIN ECG APP

The ECG app⁵ uses sensors to record the electrical signals that control how your heart beats. It analyzes that recording to detect signs of an irregular heart rhythm called atrial fibrillation (AFib).

PULSE OX SENSOR

Track your blood oxygen saturation while you’re awake or asleep, and gain awareness of how you’re adapting to altitude⁶.

SLEEP COACH

Get a sleep score and personalized coaching for how much sleep you should be getting. Track sleep stages and get insights to improve sleep quality³.

NAP DETECTION

Automatically track or log your naps to see how they benefit your body and to check the recommended time and duration they should be.

BREATHING VARIATIONS

Track shifts in your breathing patterns as you sleep⁶. These shifts could be related to environment, alcohol or potential sleep disorders such as sleep apnea.

LIFESTYLE LOGGING

Log behaviors — such as caffeine and alcohol intake — and view reports on how they impact your health in the Garmin Connect app.

JET LAG ADVISER

Help to minimize the effects of jet lag with guidance on light exposure, sleep schedule and exercise.

HEALTH STATUS

Look for changes in your health data that could indicate added stress to your body, so you can know when you’re trending away from your usual range.

BODY BATTERY ENERGY MONITORING

Track your body’s energy levels to find the best times for activity and rest³.

STRESS TRACKING

See if you’re having a calm, balanced or stressful day.

HEALTH SNAPSHOT FEATURE

Log a 2-minute session to record key health stats, then generate a report to share with your healthcare provider.

RESPIRATION TRACKING

See how you’re breathing throughout the day and night.

HYDRATION TRACKING

Log your daily fluid intake as a reminder to stay hydrated.

SMART WAKE ALARM

The smart wake alarm gently vibrates to wake you at the optimal time.

MOBILITY

Increase your flexibility and strength with new downloadable mobility workouts and an activity profile.

CONNECTIVITY

GARMIN CONNECT APP

See your health and fitness information, connect with friends and more.

SMART NOTIFICATIONS

Receive emails, texts and alerts on your smartwatch when paired with your iPhone or Android smartphone.

MUSIC

With 64 GB of storage memory, you can download up to 7,000 songs from your Spotify or Deezer accounts for phone-free listening (subscription may be required).

GARMIN PAY CONTACTLESS PAYMENTS

Breeze through checkout lines or transit systems with participating providers.

GARMIN SHARE

Use this feature to easily share saved locations, courses and workouts with friends’ compatible Garmin devices.

SAFETY AND TRACKING FEATURES

If you feel unsafe or if your watch senses that an incident occurred, your watch will send a message with your live location⁷.

STOCKS TRACKER

Keep track of up to 50 of your favorite stocks⁸ — right from your wrist.

SPORTS SCORES

Live data, schedules and standings for 15 different sports leagues when paired to your smartphone.

CONNECT IQ STORE

Add watch faces, data fields and apps from your paired smartphone.

POWER MANAGER

View how various settings and sensors impact your watch’s battery life.

GARMIN MESSENGER APP

Communicate via two-way text messaging⁹ on your wrist.

¹Based on smartwatch mode with solar charging; assumes all-day wear with 3 hours per day outside in 50,000 lux conditions

²Assumes continuous use for entire period in 50,000 lux conditions and typical use with activity mode (extended battery) selected

³Activity tracking accuracy

⁴When paired with the Garmin Connect smart-device app and the Surfline smart-device app

⁵The ECG app is only available on selected Garmin smartwatches with the latest version of the Garmin Connect smartphone app and watch software. The ECG app is not available in all regions. The ECG app is not intended for use by people under 22 years old. With the ECG app, a compatible Garmin smartwatch is capable of generating an ECG similar to a single-lead electrocardiogram. Applicable to specific countries/regions Garmin ECG App Region Compatibility | Garmin Customer Support
Applicable smartwatch model list: What Garmin Watches Have the ECG App? | Garmin Customer Support
Manufacturer Name: Garmin Corporation Registered Agent in Malaysia: Qualtek Consulting Sdn. Bhd.
Product Name: Garmin ECG App
Registered under Act 737, GB3549424-173235
Advertisement Approval Number: MDAMD 0190/2024
The statements provided are based on the results obtained from Garmin's Electrocardiogram Clinical Validation Study, ECG-002 (Version 2.0) (6 April 2022).

⁶This 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 is not available in all countries.

⁷When paired with your smartphone. For safety and tracking feature requirements and limitations, see Garmin.com/safety.

⁸When paired with your smartphone. All data provided on the Garmin Stocks Tracker app is provided for informational purposes only and is not intended for trading or investing purposes. See twelvedata.com/stocks for stock exchanges covered by the Stocks app.

⁹Requires both the sender and receiver of messages to have the Garmin Messenger app installed on their paired smartphones

iPhone is a trademark of Apple Inc., registered in the U.S. and other countries. Android is a trademark of Google LLC. SPOTIFY and the Spotify logo are among the registered trademarks of Spotify AB. Amazon Music and all related logos are trademarks of Amazon.com, Inc. or its affiliates.

Bluetooth Headphone Compatibility Garmin Ski Maps

What You'll Love
Sleep score and insights
Battery life (smartwatch mode)	Up to 36 days (90 days with solar)
Built-in mapping
Pulse Ox blood oxygen
Garmin ECG App
LED flashlight
Garmin Pay
Multi-band GPS
Music storage
Training readiness
Training status
Watch display type	Sunlight-visible, transflective memory-in-pixel (MIP)
Solar Charging
Touchscreen
Watch water rating	10 ATM
General
Strap material	ultra light-weight elastic nylon hook & loop
Lens Material	Power Sapphire
Bezel Material	titanium
Case material	fiber-reinforced polymer
QuickFit watch band compatible	compatible (26 mm)
Physical size	51 x 51 x 15.7 mm Fits wrists with the following circumference: Silicone band: 127-210 mm UltraFit Band: 127-225 mm Leather Band: 135-213 mm Metal Band: 135-225 mm
Weight	63 g (case only: 57 g)
Display Size	1.4” (35.56 mm) diameter
Display Resolution	280 x 280 pixels
Color display
Large font option
Battery type	Lithium ion
Battery life	Smartwatch: Up to 36 days/90 days with solar* Battery Saver Watch Mode: Up to 92 days/unlimited with solar* GPS Only: Up to 120 hours/320 hours with solar All Satellite Systems: Up to 80 hours/144 hours with solar All Satellite Systems + Multi-band: Up to 60 hours/90 hours with solar* All Satellite Systems + Music: Up to 22 hours Max Battery GPS: Up to 210 hours/unlimited with solar Expedition GPS: Up to 77 days/unlimited days with solar* Solar charging, assuming all-day wear with 3 hours per day outside in 50,000 lux conditions Solar charging, assuming use in 50,000 lux conditions *Solar charging, assuming use in 50,000 lux conditions; assuming typical use with SatIQ technology
Charging method	Garmin proprietary plug charger
Memory/History	32 GB
Clock Features
Time/date
GPS Time Sync
Automatic daylight saving time
Alarm clock
Smart wake alarm
Timer
Stopwatch
Sunrise/sunset times
Health & Wellness Monitoring
Heart Rate (Constant, every second)
Resting heart rate
Abnormal heart rate alerts	(high and low)
Respiration rate
Fitness age
Body Battery energy monitor
All-day stress
Relaxation breathing timer
Meditation
Breathwork
Sleep	(advanced)
Sleep coach
Sleep alignment
Breathing variations
Nap detection
Hydration	(in Garmin Connect and optional Connect IQ widget)
Women's health	(in Garmin Connect and optional Connect IQ widget)
Health snapshot
Skin temperature
Jet lag adviser
Lifestyle logging
Health status
Sensors
GPS
GLONASS
Galileo
QZSS
BeiDou
SatIQ Technology
Garmin Elevate wrist heart rate monitor
Pulse Ox Blood Oxygen Saturation Monitor
Barometric altimeter
Compass
Gyroscope
Accelerometer
Thermometer
Ambient light sensor
Daily Smart Features
Find My Phone
Find My Garmin (helps locate lost device)
Find My Phone during GPS activity
Connectivity	Bluetooth, ANT+, Wi-Fi
Connect IQ (downloadable watch faces, data fields and apps)
On-device Connect IQ Store
Smart Notifications
Text response/reject phone call with text (Android only)
View images from notifications on watch (Android only)
Morning report
Evening report
Calendar
Weather forecasts
Realtime settings sync with Garmin Connect mobile
Battery saver (customizable low power mode)
Controls smartphone music
Plays and controls watch music
Compatible with Garmin Messenger app
Smart trainer control
Pairs with Garmin Connect Mobile
Smartphone compatibility	iPhone, Android
Stocks
Garmin Share
Passcode
Calculator
Workout and Training Plans
Daily Suggested Workout - Running (Pace and Heart Rate Based)
Daily Suggested Workout - Cycling (Pace and Heart Rate Based)
Garmin Running Coach
Garmin Running Coach Experts
Garmin Cycling Coach
Garmin Coach - Prebuilt Cycling Plans
Garmin Coach - Strength
Garmin Triathlon Coach
Multisport workouts
Cardio workouts
Strength workouts
HIIT workouts
Yoga workouts
Pilates workouts
On-screen workout animations
On-screen workout muscle maps
Activity Profiles
Gym	Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Jump Roping
Multisport	Swimming/Running, Triathlon
Wellness	Walking, Pilates, Yoga, Indoor Walking, Mobility
Indoor running	Treadmill Running, Indoor Track Running, Virtual Running
Outdoor running	Running, Outdoor Track Running, Trail Running, Ultra Running, Obstacle Racing
Outdoor recreation	Hiking, Rucking, Indoor Climbing, Bouldering, Mountaineering, Hunting, Horseback Riding, Golfing, Disc Golf, Archery
Cycling	Biking, Road Biking, Mountain Biking, Gravel Biking, Bike Commuting, Bike Touring, eBiking, eMountain Biking, Indoor Biking, Cyclocross, BMX
Swim	Pool Swimming, Open Water Swimming
On the Water	Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Kiteboarding, Windsurfing, Fishing, Boating, Sailing, Water Skiing, Wakeboarding, Wakesurfing, Tubing, Snorkeling, Whitewater
Motor sports	Motorcycling, Overlanding, Motocrossing, ATVing, Snowmobiling
Racket sports	Tennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball
Snow & winter	Skiing, Snowboarding, Backcountry Snowboarding, XC Classic Skiing, XC Skate Skiing, Backcountry Skiing, Ice Skating, Snowshoeing
Team sports	Basketball, Volleyball, Field Hockey, Ice Hockey, Football/Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball
In the ring	Boxing, Mixed Martial Arts
Other activity profiles	Inline Skating
Safety and Tracking Features
Incident Detection during select activities
Incident detection alert on phone for wearables
Assistance
Live Event Sharing
Tactical Features
Dual grid coordinates
Boating Features
Wearable trolling motor remote
Activity Tracking Features
Step counter
Move alerts (displays on device after a period of inactivity)
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	(optional Connect IQ app)
Automatic rep counting
Training, Planning and Analysis Features
Improved interval (includes open repeats, intervals data page, rest screen and auto detection)
Customizable data pages
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 (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)	(with compatible accessory)
HR broadcast (broadcasts HR data over ANT+ to paired devices)
Respiration rate (during exercise)	(with compatible accessory)
GPS speed and distance
Customizable activity profiles
Auto Pause automatic timer halt
Interval training
Advanced workouts
Power Modes - customizable in-activity battery settings
HRM running pace and distance
Auto Lap interval tracking feature
Manual lap
Rest timer
Configurable lap alerts
Heat and altitude acclimation
VO2 Max (Run)
VO2 Max (Trail Run)
Realtime stamina
Endurance score
Load ratio
Training load
Training load focus
Training effect
Training effect (anaerobic)
Primary benefit (Training Effect labels)
Workout benefit
Custom alerts
Voice alerts
Multisport auto transition
Finish time
Virtual Partner
Race an Activity
Manual multisport activities
Garmin Live Segments
Strava Live Segments
Round-trip course creator (running/cycling)
Trendline Popularity Routing
Touch and/or button lock
Shortcuts
Auto scroll
Activity history on watch
Physio TrueUp
Unified training status
Running Features
GPS-based distance, time and pace
Running dynamics
Step speed loss	(with compatible accessory)
Vertical oscillation and ratio
Ground contact time and balance	(GCT balance with accessory)
Stride length (real time)
Cadence (provides real-time number of steps per minute)
Running Tolerance
Running Economy	(with compatible accessory)
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
Course- and weather-specific race predictor
Projected race time and pace
Foot pod capable
Run/Walk/Stand detection
Golfing Features
Preloaded with 43,000 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
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
Touch-targeting (touch target on display to see the distance to any point)
Handicap scoring
Swing Tempo
Tempo Training
Round timer/odometer
CT10 Automatic club tracking compatible (requires accessory)
Wind speed and direction (requires connection to Garmin Golf app)
Virtual caddie
Pairs with Garmin Golf app
Tournament legal
Green Contours (with Garmin Golf membership)
Outdoor Recreation
Projected waypoint
UltraTrac mode
Elevation profile
Distance to destination
Barometric trend indicator with Storm Alert
Vertical speed
Total ascent/descent
Rest Timer (Ultra Run only)
Auto rest
Future elevation plot
GPS coordinates
Sight 'N Go
Fish forecast
Sun and moon information
Expedition GPS Activity
Tides
Tide glance
Mapping & Navigation
Point-to-point navigation
Bread crumb trail in real time
Back to start
TracBack
Explore Nearby
Up Ahead
ClimbPro Ascent Planner
NextFork navigation
Preloaded road and trail maps
Preloaded ski resort maps
Downloadable cartography support
Cycling Features
Courses
Bike lap and lap maximum power (with power sensor)
Race an activity
Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)
FTP (Functional Threshold Power)	(with compatible accessory)
Power curve and % FTP workouts
Cycle Map (routable cycling-specific street map)
MTB Grit & Flow
Advanced cycling dynamics
Compatible with Vector and Rally (power meters)
Compatible with Varia Vision (head-mounted display)
Compatible with Varia radar (rear-facing radar)
Compatible with Varia lights
Compatible with Varia headlight camera
Speed and cadence sensor support (w/sensor)
Power meter compatible
Power guide
Swimming Features
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)	(with HRM-Tri, HRM-Swim, HRM-Pro or HRM-Pro Plus)

Enduro 4 with dark olive ComfortFit fabric band
Charging/data cable
Documentation