TECHNOLOGY SOLUTIONS FOR EXTREME RUNNERS
Industry leading battery life, trail focused features, and valuable training insights are just some of the reasons COROS technology is trusted by world class athletes like Kilian Jornet and Blandine L'hirondel. Whether you're taking on your next big ultramarathon, or just hitting your favorite trails, keep reading to learn how COROS can help you reach your biggest goals.
Trail Running Products
Trail and Ultra running require rugged, reliable and precise equipment. These COROS products are designed to deliver from training runs to the finish line.
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COROS APEX 4
Built for trail runners and mountain athletes who demand performance, durability, and reliability. Light enough for race day. Powerful enough for your longest training blocks. APEX 4 delivers the ideal balance of a lightweight watch, precision navigation, and battery life built for long days in the mountains.
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COROS VERTIX 2S
From scaling the world’s tallest peaks, to running the longest ultra-marathons, the VERTIX 2S has it all. Turn your next big performance dream into a reality with mind-blowing battery life, a comprehensive feature set, and extreme durability.
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COROS Heart Rate Monitor
Accurate wrist-based optical heart rate measurement is especially challenging for trail runners. The COROS Heart Rate Monitor records precise data from your upper arm, providing a significantly more comfortable and convenient experience than a traditional chest strap.
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COROS POD 2
By adding a data collection point on your shoe, POD 2 delivers expanded and improved metrics. From more accurate Effort Pace and more responsive instant pace data, to precise temperature measurement, POD 2 helps take your training to the next level.
COMPARE WATCHES
RUNNING MODES
Whether you’re running your local switchbacks, taking on an ultra-distance event, or training indoors, our activity modes have you covered.
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TRAIL RUN
Whether training for elevation or improving heart rate zones, real-time data is just a glance away.
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INDOOR RUN
Bring your training indoors with added precision using the COROS POD 2 on your foot. For deeper insights, open COROS Extender in the app to elevate your indoor setup.
TRAINING TOOLS
The COROS training solution offers all runners much more than modes. Our comprehensive array of training tools will help advance every runner toward their goals.
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COROS APP
Easily manage your COROS products, analyze your data, see training trends and gain powerful insights on your progress directly in the free COROS App.
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WORKOUT BUILDER
Create detailed workouts in the app or simple intervals with ease directly on your watch.
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WORLD CLASS WORKOUTS
Download workouts from Olympians & World Champions or choose from an extensive range of workouts from our in house coaches and sync them easily to your watch.
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FREE TRAINING PLANS
From your first trail race to mountain ultras, download and follow free structured training plans built to help you progress across climbs, descents, technical terrain, and long days on the trails.
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TRAINING HUB
A free, powerful web-based portal to manage your training journey, perfect for athletes seeking deeper metric analysis or those working with a coach.
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PACE STRATEGY
Create a race plan for any distance or route, customize your splits, and follow real-time guidance on your watch to stay on track all the way to the finish.
RUNNING FITNESS
Whatever your running goals, COROS can help you understand, track, and improve your fitness.
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EFFORT PACE
TRAINING LOAD
RECOVERY TIMER
TRAINING STATUS
RUNNING FITNESS SCORE
RUNNING FITNESS TEST
RECOVERY & WELLNESS
Monitor other factors that may impact your running performance with these features.
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SLEEP TRACKING & HRV
Know if your night has left you recovered enough to run well with detailed sleep quality and HRV data.
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DAILY STRESS
Effortlessly monitor daily stress levels to see if they impact your training performance.
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WELLNESS CHECK
Easily monitor key health indicators as regularly as you want with this simple one-step 30-second test.
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SPO2
For those training at altitude, monitor your SpO2 to ensure you have acclimated before pushing onward.
COROS RUNNING BLOGS
COROS is committed to telling the stories of our professional athletes and sharing insights from our training experts. Read some of our most relevant blogs below.
- MORE THAN SPLITS
Rachel Entrekin Smashes Cocodona 250 Course Record
253.8 miles. 40,000 feet of elevation gain. 19 minutes of total sleep. One beloved Queen. (Header Photo by Somer Kreisman) - LATEST NEWS
Download COROS Mountain Running Workouts
Four trail workouts to build strength, endurance, and confidence on mountainous terrain - MORE THAN SPLITS
Francesco Puppi, The 100-Mile Debut That Rewrote the Standard
At the 2026 Western States 100, he ran 13:51:08, finished second, ran under the previous course record, and helped push the men's race into a new era. - ATHLETE STORIES
Hans Troyer Returns to Western States
Hans Troyer knows what it feels like to almost lose everything chasing a race. Now he's back at Western States, fitter than ever, and learning to trust it. - LATEST NEWS
5 COROS Features That Improve Your Trail Race Execution
Race day brings lots of decisions under pressure. Here are 5 COROS features to make those easier and allow you to focus on the trail. - MORE THAN SPLITS
Mastering Zegama: What Kilian Jornet Has Learned
Pre-race analysis ahead of the 2026 Zegama-Aizkorri (Header photo by Jose Miguel Munoze) - MORE THAN SPLITS
Andreu Blanes Goes All-In at Zegama: From Roads to Mountains
With a background in orienteering, a marathon debut just six months ago, and a win at Sierre-Zinal in 2022, Andreu Blanes is proving he can adapt to anything. At Zegama 2025, he nearly pulled off another mountain classic—leading for over half the race and finishing second in a stacked field. - MORE THAN SPLITS
Max Jolliffe's Cocodona Revenge
Rhabdomyolysis ended Max Jolliffe's last Cocodona 250 too soon. This year, he's back with a season of learning under his belt and revenge on his mind. - MORE THAN SPLITS
How Hans Troyer Won Black Canyon
Hans Troyer breaks the Black Canyon 100K course record, turning past setbacks into a controlled and decisive victory. - ATHLETE STORIES
Francesco Puppi - The Weight of Expectations
Francesco Puppi's road to Western States didn't go as planned. Here's what he learned about fear, expectation, and what it really means to prepare.

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