1. Introduction: Why Your GPS Watch Matters for Ultramarathons in 2025 ππββοΈ
In 2025, ultramarathon running is not just about endurance; itβs about the right gear! π§° Your GPS watch is your ultimate navigation tool in the wild, helping you stay on course, manage your battery, and even save your life. π
Choosing the best GPS watch for ultramarathons could make the difference between finishing with a smile or a stressful DNF (Did Not Finish) π¬. In this guide, weβll break down everything you need to know to pick the perfect GPS watch for your ultra journey. π
2. Why a GPS Watch Is Essential for Ultramarathons π―
Navigation & Safety: Whether you’re tackling a 100-miler through rugged mountains ποΈ or running a desert stage race, your GPS watch is your lifeline. No more relying on course ribbons or trail markers that can get blown away or washed out. πͺοΈ
Battery Life & Durability: You need a GPS watch that will last as long as you do. β³ With ultra-distance races lasting hours (or even days), your watch needs to keep up. Plus, it should handle whatever mother nature throws your way! π¨
3. Key Features to Look for in a GPS Watch for Ultramarathons πΆοΈ
Battery Life: π Look for a watch that offers 40+ hours in GPS mode or a solar-powered option for multi-day events.
GPS Accuracy: π Youβll want dual-frequency GNSS for the most precise navigation in remote terrain.
Screen & Controls: π Choose a display thatβs easy to read in bright sunlight. Button controls are often better in extreme conditions than touchscreen options.
Water Resistance & Durability: π§οΈ Your watch should be water-resistant and rugged enough to handle anything from thunderstorms to muddy trails.
Additional Features: π§ Look for smart alerts, heart rate monitoring, pacing, and elevation tracking to keep you informed every step of the way.
4. Top GPS Watches for Ultramarathons in 2025 π
Garmin Enduro 2: π Perfect for 100-mile races and multi-day events. This beast offers 150+ hours of GPS battery life and solar charging to keep you going for days. Plus, it features offline topo maps and turn-by-turn navigation.
Coros Vertix 2: ποΈ Great for rugged terrain and cold-weather races. Dual-frequency GPS ensures youβre never lost in the mountains, and it can last up to 140 hours in GPS mode.
Suunto Vertical Solar Titanium: π For mountain ultras and international races. Solar charging and 85-500 hours of battery life mean youβll have power to spare. π
Apple Watch Ultra 2: π Ideal for tech lovers, but battery life (around 36 hours) may fall short on longer runs. Best for supported races with easy access to charging stations.

5. Smartphone Navigation: Backup or Primary? π±π€
Pros of Smartphone Navigation:
- π Larger Screens for better map visibility.
- π§ Multiple Map Layers and the ability to edit routes on the fly.
- π Offline Use is powerful when you pre-load maps.
Cons:
- π Battery Drain: A phoneβs GPS eats through its battery quickly, especially on ultra-long runs.
- π§€ Cold or Wet Weather: Phones are hard to operate in freezing temperatures or wet conditions.
- β οΈ Distractions: Notifications can break your focus, so itβs best used as a backup!
Best Strategy: π² Use your phone for pre-race planning and detailed maps, but rely on your GPS watch for real-time navigation during the race. π
6. How to Choose the Right GPS Watch for Your Race π―
Consider Race Distance & Terrain:
- Shorter distances (50K-50M): Lightweight with decent battery life.
- Longer races (100M+): High-end models with extended battery and solar charging.
Assess Your Tech Preferences:
- Prefer minimal distraction? Go for a rugged GPS watch with long battery life.
- Want more tech features? The Apple Watch Ultra 2 offers integration with fitness apps and other devices.
7. Common GPS Watch Pitfalls to Avoid β οΈ
Overlooking Battery Life: A dead GPS watch means you’re lost and alone. Always check battery life specs before race day and carry an extra power bank! π
Ignoring GPS Signal Reliability: For remote races, choose models with dual-frequency GPS and offline maps to prevent signal issues.
Choosing Based on Looks Alone: Performance > aesthetics when it comes to ultramarathons. π Go for ruggedness, accuracy, and battery life above all else.
8. Real-Life Experiences: How the Right GPS Watch Made a Difference π
Hear from ultra-runners who have relied on their GPS watches in critical moments:
- “I missed a turn at mile 42, but my Garmin beeped me back on trackβsaved my race!”
- “The battery lasted all night during my 100-miler, and I didnβt have to worry about recharging!”
9. Conclusion: Pick the Best GPS Watch for Your Ultra Success π
Choosing the right GPS watch for your ultramarathon in 2025 is essential for safety, navigation, and performance. Make sure to consider your race conditions, battery needs, and terrain to select the perfect device. π
Call to Action: Ready to find your perfect GPS watch? π§ Check out our main guide on ultramarathon tech and safety here for more insights!
Frequently Asked Questions (FAQ) β
1. What is the best GPS watch for ultramarathons in 2025? β
The best GPS watch for ultramarathons in 2025 depends on your specific needs. Outdoor Gear Lab’s review provides an in-depth comparison of top models.
2. Can I rely solely on my smartphone for navigation during an ultra race? π±
While smartphones can be used for navigation, they may not be as reliable as dedicated GPS watches. iRunFar’s guide discusses the advantages of GPS watches over smartphones.
3. How do I extend the battery life of my GPS watch during long races? π
To extend battery life, use power-saving modes and adjust settings like screen brightness. iRunFar’s review offers tips on maximizing battery efficiency.
4. What features should I look for in a GPS watch for trail running? π
Key features include long battery life, accurate GPS tracking, and durability. BASE Magazine’s review highlights essential features for trail running GPS watches.
5. Are solar-powered GPS watches a good choice for ultramarathons? π
Yes, solar-powered GPS watches can be beneficial for ultramarathons by extending battery life. Switchback Travel’s review discusses the advantages of solar charging in GPS watches.
6. Can I use a GPS watch in the rain? π§οΈ
Most modern GPS watches are water-resistant and designed to withstand rain. BASE Magazine’s review provides insights into the water resistance of GPS watches.
7. How accurate are GPS watches for ultramarathons? π§
GPS watches are generally accurate, but accuracy can vary between models. iRunFar’s review evaluates the GPS accuracy of the Coros Vertix 2S.
8. How do I load GPX files onto my GPS watch? π₯
GPX files can be loaded onto GPS watches via compatible apps or software. iRunFar’s guide offers information on syncing GPX files with GPS watches.
9. What is a GPX file, and why is it important for ultramarathons? π
A GPX file contains GPS data that can be used for navigation. iRunFar’s guide explains the importance of GPX files in ultramarathons.
10. Can I use my phone as a primary navigation tool in ultras? π²
While smartphones can be used for navigation, they may not be as reliable as GPS watches. iRunFar’s guide discusses the advantages of GPS watches over smartphones.
11. What is the benefit of using a smartwatch like the Apple Watch Ultra 2 for ultramarathons? π
Smartwatches offer features like heart rate monitoring and notifications. TechRadar’s review compares the Apple Watch Ultra 2 with other GPS watches.
12. How can I combine my phone and GPS watch for better navigation during an ultra race? π±β
Use your phone for pre-race planning and your GPS watch for real-time navigation. iRunFar’s guide offers tips on integrating both devices.
13. Are there any apps that work well for ultra race navigation? π§
Apps like Gaia GPS and Komoot are popular for ultra race navigation. iRunFar’s guide discusses compatible apps for GPS watches.
14. What is dual-frequency GNSS, and why is it important for ultramarathons? π‘
Dual-frequency GNSS improves GPS accuracy by using multiple frequencies. iRunFar’s review explains the benefits of dual-frequency GNSS.
15. How can I prevent my GPS watch from dying mid-race? β‘
To prevent battery failure, use low-power modes and carry a backup power source. iRunFar’s review offers advice on extending battery life.
16. How do I test my GPS watch before an ultra race? π
Test your GPS watch during training runs to ensure reliability. iRunFar’s guide provides tips on testing GPS watches.
17. What are the risks of relying too much on GPS watches during ultramarathons? β οΈ
Over-reliance on GPS watches can be risky if the device fails. iRunFar’s guide discusses the importance of backup navigation methods.
18. Can I use a GPS watch for international ultramarathons? π
Yes, many GPS watches support international navigation. iRunFar’s guide provides information on international compatibility.
19. What safety features should I look for in a GPS watch for remote ultramarathons? π¨
Look for features like live tracking and emergency alerts. iRunFar’s guide highlights safety features in GPS watches.
20. How do I choose the best GPS watch for my ultramarathon? π―
Consider factors like battery life, GPS accuracy, and durability. iRunFar’s guide offers advice on selecting the right GPS watch.
π₯ 1. Garmin Enduro 2 In-Depth Review
Why We Chose This Video:
This video thoroughly examines the Garmin Enduro 2βs durability, long battery life, and mapping features. It also showcases real-world testing to demonstrate how this watch performs in challenging ultramarathon conditions.
π₯ 2. COROS Vertix 2S In-Depth Review
Why We Chose This Video:
The COROS Vertix 2S is specifically designed for mountaineers and outdoor enthusiasts. This video thoroughly evaluates the watch’s GPS accuracy, heart rate monitoring, and training feedback, making it a great choice for ultramarathon runners.
π₯ 3. Suunto Vertical Solar Titanium Review
Why We Chose This Video:
The Suunto Vertical Solar Titanium stands out for its rugged design and long battery life. This video provides an in-depth look at its features, build quality, and performance, making it an excellent choice for ultramarathon runners.
These videos will give you a comprehensive view of the top ultramarathon GPS watches in 2025. Each video highlights the watch’s key features, ensuring you can make an informed decision.
π External Sources and Thanks
We’d like to thank the following sources for providing valuable insights into ultramarathon GPS watches:
Suunto Vertical Solar Titanium Review: Suunto Vertical Solar Titanium Product Page Suuntoβs Vertical Solar Titanium is built for rugged terrain, offering long-lasting battery life and solar charging for remote ultramarathons.
Garmin Enduro 2 Review: Garmin Enduro 2 Official Page Garmin has been a trusted name in the GPS industry for years, and their Enduro 2 model offers unparalleled battery life and mapping features for ultrarunners.
COROS Vertix 2 Review: COROS Vertix 2 Overview COROS offers highly accurate GPS and advanced training features for endurance athletes, making it a top choice for ultramarathoners.
π’ Leave a Comment and Share Your Thoughts!
Weβd love to hear from you! π¬ Whatβs your experience with GPS watches for ultramarathons? Do you have a favorite model that you swear by, or are you considering one of the options weβve discussed? Share your thoughts and any tips in the comments below! π
If you found this guide helpful, feel free to share it with your fellow ultramarathoners. Letβs keep the conversation going and help each other get the most out of our ultra running journeys! πββοΈπ¨

About the Author
Lost Pace is an ultramarathon runner, shoe-tester and the founder of umit.net. Based year-round in TΓΌrkiyeβs rugged KaΓ§kar Mountains, he has logged 10,000 + km of technical trail running and completed multiple 50 Kβ100 K ultras.
Blending mountain grit with data, Lost analyses power (CP 300 W), HRV and nutrition to craft evidence-backed training plans. He has co-written 260 + long-form guides on footwear science, recovery and endurance nutrition, and is a regular beta-tester of AI-driven coaching tools.
When he isnβt chasing PRs or testing midsoles, youβll find him sharing peer-reviewed research in plain English to help runners train smarter, stay healthier and finish stronger.
Ultrarunner Β· Data geek Β· Vegan athlete