| Manufacturer | Garmin |
|---|---|
| Type | Ultra-endurance solar GPS smartwatch |
| Series | Enduro Series |
| Released | 6 October 2026 (available to order 9 October 2026) |
| Price at launch | GBP £799.99 / USD $899.99 |
| Predecessor | Enduro 3 |
| Successor | See Release Radar |
| Sizes | 51mm (large), one size only |
| Variants | One model, with a solar MIP display (part number 010-04799-01) |
Specifications sourced from Garmin’s UK product page at launch. The USD price is taken from Garmin’s launch announcement.
Expert opinion | What’s new | Specifications | Battery life | Features | Activity profiles | Comparisons | Further reading
Expert opinion
Enduro 4 gives ultra runners and multi-day hikers Garmin’s full set of trail features in a watch that does not need charging during the event. Course Planner sets the cut-off times, rest plans and aid stations for a race, Up Ahead and NextFork show what is coming on the trail, and grade-adjusted pace based workouts and rolling pace set targets that account for the hills. Garmin Epic collects a multi-day effort into one view, and the watch also has the ECG app, Training Readiness, Endurance Score and preloaded TopoActive maps with perspective view. The battery is rated for 36 days as a smartwatch, or 90 days with solar, and for 120 hours of GPS, or 320 hours with solar, in a 66g watch with a built-in flashlight. It has no phone calls from the wrist, no dive features and no satellite messaging, all of which Fenix 9 Pro Solar has, and it comes in one large 51mm size.
Garmin Enduro 4
Course Planner, TopoActive maps and Garmin Epic, with up to 320 hours of solar GPS, 64GB storage and a 66g case.
$899.99
£799.99
What’s new versus the Enduro 3
Features
- Garmin Epic: records, reviews and shares health and performance data from a multi-day activity in one view
- Grade-adjusted pace based workouts (running) and rolling pace
- Enhanced stamina metrics that show how endurance changes with fitness and training history
- Rucking workouts, with pack weight that can be changed during the activity (Enduro 3 has the rucking activity and pack weight entry)
- Lactate threshold listed without the compatible accessory that Garmin requires for Enduro 3
- Indoor rowing performance suite: VO2 Max, FTP, power curve/zones, lactate threshold, max heart rate (requires compatible rowing machine)
- Mixed session multisport
- Perspective view in mapping
- ArcheryX (replaces the Archery profile)
- Gaming Activity and GameOn app compatibility
Battery, weight and storage
- Battery life is unchanged in every mode, except that Garmin now publishes a solar figure of 25 hours for activity with music
- Weight 66g with band (Enduro 3: 63g); the case alone is unchanged at 57g
- ComfortFit fabric band for wrists of 145-220mm (Enduro 3: UltraFit nylon band for 127-225mm)
- 64GB storage (up from 32GB)
- Security updates until at least 6 October 2028 (Enduro 3: 27 August 2026)
- Case, bezel, lens, display, dimensions and connectivity are unchanged: 51 x 51 x 15.7mm, titanium bezel, Power Sapphire lens, 1.4-inch 280 x 280 MIP, Bluetooth, ANT+ and Wi-Fi
Listed for Enduro 3 and absent from Garmin’s Enduro 4 page
- Hands-free voice control
- Quick workout
- Varia Vision compatibility
- YouTube Music
- WhatsApp through the Connect IQ app
- XC ski power
Garmin has confirmed that the Fenix 9 software generation will pass to existing watches, so several of these software additions are not exclusive to the Enduro 4.
Enduro 4 versus Fenix 9 Pro Solar 51mm
The Fenix 9 Pro is the reference for what is new to Garmin in 2026. Measured against it, the Enduro 4 software set is the Fenix 9 set, and the differences are in battery, weight, price and the hardware that Garmin leaves out.
- Smartwatch battery: up to 36 days, or 90 days with solar (Fenix 9 Pro Solar 51mm: 30 days, or 57 days with solar)
- Activity Mode (Extended Battery): up to 120 hours, or 320 hours with solar (Fenix 9 Pro Solar 51mm: 100 hours, or 211 hours with solar)
- Activity Mode (Max Accuracy): up to 60 hours, or 90 hours with solar (Fenix 9 Pro Solar 51mm: 54 hours, or 75 hours with solar)
- Weight: 66g with band (Fenix 9 Pro Solar 51mm: 102g)
- Thickness: 15.7mm (Fenix 9 Pro Solar 51mm: 16.6mm)
- Case: fibre-reinforced polymer with a titanium bezel (Fenix 9 Pro: full titanium)
- Price at launch: GBP £799.99 (Fenix 9 Pro Solar 51mm: GBP £1,029.99)
- Storage, display, lens and GNSS match the Fenix 9 Pro Solar 51mm: 64GB, 1.4-inch 280 x 280 MIP, Power Sapphire, multi-band with SatIQ
- Listed for the Fenix 9 Pro and absent from Garmin’s Enduro 4 sheet: speaker and microphone with phone calls and voice command, dive computer and depth sensor, inReach satellite and LTE variants, and an AMOLED option
- Listed for the Enduro 4 and absent from the Fenix 9 Pro launch sheet: rolling pace
Specifications
| Specification | Enduro 4 (51mm) |
|---|---|
| Display | |
| Display type | Sunlight-visible, transflective memory-in-pixel (MIP), colour |
| Display size | 35.56mm (1.4″) |
| Resolution | 280 x 280 pixels |
| Lens | Power Sapphire (solar charging) |
| Touchscreen | Yes, with buttons |
| Physical | |
| Dimensions | 51 x 51 x 15.7mm (large) |
| Weight | 66g (case only: 57g) |
| Case material | Fibre-reinforced polymer |
| Bezel material | Titanium |
| Strap | ComfortFit fabric (fits wrists 145-220mm) |
| Band width | 26mm QuickFit |
| Water rating | 10 ATM |
| Sensors and positioning | |
| GNSS | Multi-band: GPS, GLONASS, Galileo, QZSS, BeiDou with SatIQ |
| Heart rate | Garmin Elevate wrist heart rate, continuous (every second) |
| ECG | Yes (Garmin ECG App, region-dependent) |
| Pulse Ox | Yes |
| Barometric altimeter | Yes |
| Compass | 3-axis electronic |
| Gyroscope | Yes |
| Accelerometer | Yes |
| Thermometer | Yes |
| Ambient light sensor | Yes |
| Skin temperature | Yes |
| Connectivity and storage | |
| Connectivity | Bluetooth, ANT+, Wi-Fi |
| NFC (Garmin Pay) | Yes |
| Storage | 64GB |
| LED flashlight | Yes |
| Charging | Garmin proprietary plug charger |
| Security updates until | 2028-10-06 |
Battery life
All figures are from Garmin’s official spec sheet. Solar figures for the smartwatch, low power and expedition modes assume all-day wear with 3 hours per day outside in 50,000 lux conditions. Solar figures for the activity modes assume use in 50,000 lux conditions and typical use with SatIQ.
| Mode | Battery | With solar |
|---|---|---|
| Smartwatch | Up to 36 days | Up to 90 days |
| Low Power Watch Mode | Up to 92 days | Unlimited |
| Activity Mode (Normal) | Up to 80 hours | Up to 144 hours |
| Activity Mode + Music (Normal) | Up to 22 hours | Up to 25 hours |
| Activity Mode (Max Battery) | Up to 210 hours | Unlimited |
| Activity Mode (Extended Battery) | Up to 120 hours | Up to 320 hours |
| Activity Mode (Max Accuracy) | Up to 60 hours | Up to 90 hours |
| Expedition Mode | Up to 77 days | Unlimited |
Features
A full breakdown of Garmin platform features is available at Garmin features explained.
Plan
- Daily Suggested Workouts (running and cycling, adapts after every session; full week view)
- Garmin Coach plans: running, cycling and strength
- Garmin Triathlon Coach
- Multisport, cardio, strength, HIIT, yoga, pilates and rucking workouts
- Grade-adjusted pace based workouts (running)
- On-screen workout animations with muscle map
- Downloadable training plans
- Race Widget
- Course Planner with cut-off times, rest plans, checkpoints and aid stations
- PacePro pacing strategies
- Morning Report and Evening Report
- Garmin Epic multi-day activity view
Prepare
- Training Readiness score
- Training Status, Training Load, Load Ratio and Training Load Focus
- Recovery Time
- HRV Status
- Body Battery energy monitoring
- Sleep Coach with sleep score and stages
- Sleep Alignment, Breathing Variations, Nap Detection
- Stress tracking (all-day)
- Health Snapshot
- Health Status monitoring
- Skin temperature
- Jet Lag Adviser
- Heat and Altitude Acclimation
- Respiration Rate (24/7, and during exercise with compatible accessory)
- Pulse Ox blood oxygen saturation
- Garmin ECG App (AFib detection)
- Women’s Health tracking
- Lifestyle Logging
- Hydration tracking
- Fitness Age
Perform
- VO2 Max (running, trail running)
- Ultrarun activity with rest timer and automatic rest timer for aid stations
- Adventure racing activity
- Pack weight for running, hiking and walking; rucking activity with adjustable pack weight
- Indoor rowing: VO2 Max, FTP, power curve/zones, lactate threshold, max heart rate (requires compatible rowing machine)
- Endurance Score
- Hill Score
- Real-time Stamina and enhanced stamina metrics
- Running Dynamics: cadence, stride length, vertical oscillation and ratio (wrist-based)
- Running Economy, Step Speed Loss, ground contact time and balance (with compatible accessory)
- Running Tolerance, Running Power, Grade-Adjusted Pace, Performance Condition, Lactate Threshold
- Trail run auto climb
- Visual Race Predictor, course- and weather-specific race predictor and Projected Race Time
- ClimbPro Ascent Planner
- Dynamic Round-Trip Routing
- Perspective view mapping
- Multicontinent TopoActive maps preloaded; downloadable cartography support; 64GB storage for Outdoor Maps+ content
- Garmin Trails (subscription required)
- Preloaded ski resort maps (SkiView, 2,000+ resorts)
- 43,000 preloaded golf course maps
- Virtual Caddie, AutoShot, PlaysLike distance, Green Contours (with Garmin Golf membership)
- MTB Grit and Flow metrics
- Surf Activity with Surfline Sessions
- Backcountry Ski and Snowboard auto tracking
- ArcheryX
- Gaming Activity and GameOn app compatible
- NextFork map navigation
- Up Ahead for race aid stations and POI
- Expedition GPS activity and UltraTrac mode
- FTP, power curve, Power Guide and Advanced Cycling Dynamics (with compatible power meter)
- Garmin Varia radar, lights and headlight camera compatible
- Open Water and Pool swim metrics, stroke detection, critical swim speed
- Multisport auto transition; mixed session multisport
- Strava Live Segments and Garmin Live Segments
- Trendline Popularity Routing
- SatIQ multi-band GNSS optimisation
- Power Manager and customisable in-activity power modes
Connect
- Smart notifications (calls, texts, alerts); text replies on Android only
- Garmin Pay contactless payments (NFC)
- Music storage: Spotify, Deezer, Amazon Music (subscription may be required)
- Garmin Messenger app two-way text messaging (with paired smartphone)
- Incident Detection and Assistance with live location alert
- Live Event Sharing
- Garmin Share
- Find My Phone and Find My Garmin
- Connect IQ Store on device
- Calendar sync, weather forecasts, sports scores, stocks tracker
- Smart trainer control
- Passcode and calculator
- Dual grid coordinates
- Wearable trolling motor remote
Activity profiles
| Category | Profiles |
|---|---|
| Running | Running, Outdoor Track Running, Trail Running, Ultra Running, Obstacle Racing, Treadmill Running, Indoor Track Running, Virtual running |
| Cycling | Biking, Road biking, Mountain Biking, Gravel biking, Bike commuting, Bike touring, eBiking, eMountain Biking, Indoor Biking, Cyclocross, BMX |
| Swimming | Pool Swimming, Open Water Swimming |
| Multisport | Swimming/Running, Triathlon |
| Gym and fitness | Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor rowing, Jump Roping, Boxing, Mixed martial arts, Walking, Indoor Walking, Pilates, Yoga, Mobility |
| Outdoor | Hiking, Rucking, Indoor Climbing, Bouldering, Mountaineering, Hunting, Horseback Riding, Golfing, Disc Golf, ArcheryX, Inline Skating |
| Winter sports | Skiing, Snowboarding, Backcountry Snowboarding, XC Classic Skiing, XC Skate Skiing, Backcountry Skiing, Ice Skating, Snowshoeing |
| Water sports | Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Kiteboarding, Windsurfing, Fishing, Boating, Sailing, Water Skiing, Wakeboarding, Wakesurfing, Tubing, Snorkeling, Whitewater |
| Team sports | Basketball, Volleyball, Field Hockey, Ice Hockey, Football, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball |
| Racket sports | Tennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball |
| Motorsports | Motorcycling, Overlanding, Motocrossing, ATVing, Snowmobiling |
| Gaming | Gaming Activity (GameOn app compatible) |
Garmin Enduro 4
Course Planner, TopoActive maps and Garmin Epic, with up to 320 hours of solar GPS, 64GB storage and a 66g case.
$899.99
£799.99
Comparisons and upgrade guides
- Garmin Enduro 4 vs Fenix 9 Pro Solar, which to buy
- Garmin Enduro 4 vs Enduro 3, what’s new
- Garmin Enduro upgrade guide, for Enduro, Enduro 2 and Enduro 3 owners
Further reading
- Garmin Enduro 4 Leaked: Price, Features and Release Date
- Garmin Enduro 4 spotted in FCC filing A05216
- Garmin Enduro 3: first thoughts (predecessor)
- Garmin battery life: a deep dive
- Garmin Rucking update explained
- Garmin Fenix 9 Pro specifications (includes the 51mm Solar)
- Garmin Enduro 4 on garmin.com
- Garmin watch specifications database
- Release Radar: latest Garmin updates
