Brand: COROS

    Category: Running Heart Rate Monitors

    Recommended by Brandon Pitzen, Outdoor Enthusiast — NC

    Highlights: comfortable

    The COROS Heart Rate Monitor in vibrant yellow offers unparalleled comfort and precision for fitness enthusiasts, providing over 38 hours of continuous heart rate tracking. Its lightweight design ensures you can focus on your performance without distractions. 1. Continuous heart rate monitoring for over 38 hours, allowing for extended workout sessions without interruptions. 2. Lightweight and ergonomic design ensures a comfortable fit during any activity, from running to cycling. 3. Compatible with various fitness apps and devices, enhancing your workout tracking experience. 4. Water-resistant construction, making it suitable for use in various weather conditions and during intense workouts. 5. Easy-to-read display that provides real-time heart rate data, helping you stay within your target zones. 6. Quick and simple charging process, ensuring minimal downtime between uses. 7. Durable materials designed to withstand rigorous training and outdoor adventures. The COROS Heart Rate Monitor is ideal for athletes and fitness enthusiasts looking to optimize their training sessions. It performs best in active environments such as gyms, outdoor trails, and during competitive events. Whether you're a beginner or a seasoned athlete, this monitor excels in providing accurate heart rate data to help you achieve your fitness goals. Perfect for year-round use, it adapts seamlessly to various activities, ensuring you stay informed about your performance regardless of the season.

    Price: $79

    Who it's for
    Runners, cyclists, and multi-sport athletes who want more accurate heart rate data than a wrist watch provides but are done with the hassle and discomfort of chest straps. Particularly well-suited to long-effort training, ultra running, and data-focused athletes who wear a monitor constantly.
    What people are saying
    Hosts consistently praise comfort (most say they forget it's on), accuracy relative to wrist-based HR, and rechargeable battery life of roughly a week and a half. The one repeated caveat is a ~1-second optical delay, making it less reliable for very short or explosive efforts where instant feedback matters.
    Worth noting
    Tattoos on the placement area can interfere with optical sensing, and one host notes a typical lifespan of around 24 months. Pairs with third-party devices (Garmin, Concept2) and is easy to clean.

    Brandon Pitzen's review

    Best accuracy/comfort heart rate monitor I have used.

    Recommended by Brandon Pitzen, Outdoor Enthusiast

    Frequently asked questions

    Who is the COROS Heart Rate Monitor for?

    Runners, cyclists, and multi-sport athletes who want more accurate heart rate data than a wrist watch provides but are done with the hassle and discomfort of chest straps. Particularly well-suited to long-effort training, ultra running, and data-focused athletes who wear a monitor constantly.

    What do experts say about the COROS Heart Rate Monitor?

    Hosts consistently praise comfort (most say they forget it's on), accuracy relative to wrist-based HR, and rechargeable battery life of roughly a week and a half. The one repeated caveat is a ~1-second optical delay, making it less reliable for very short or explosive efforts where instant feedback matters.

    What should you know before buying the COROS Heart Rate Monitor?

    Tattoos on the placement area can interfere with optical sensing, and one host notes a typical lifespan of around 24 months. Pairs with third-party devices (Garmin, Concept2) and is easy to clean.

    What does Brandon Pitzen say about the COROS Heart Rate Monitor?

    Best accuracy/comfort heart rate monitor I have used.

    Why does Brandon Pitzen recommend COROS?

    Brandon Pitzen recommends the COROS COROS Heart Rate Monitor for running heart rate monitors. Best accuracy/comfort heart rate monitor I have used.

    Is the COROS Heart Rate Monitor a good running heart rate monitor?

    Yes — Brandon Pitzen recommends the COROS Heart Rate Monitor by COROS as their running heart rate monitors pick. Best accuracy/comfort heart rate monitor I have used.

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    What other hosts are saying

    25 experts recommend the COROS Heart Rate Monitor.

    Kilian Korth, Professional Trail Runner

    Much more comfortable than a chest strap and very accurate.

    Recommended in Cocodona 250 Kit + Fuel

    John Bruno, Ultra trail-runner, ski mountaineer

    Makes my watch just a bit more accurate! Long battery life and simple design.

    Recommended in Trail running

    Robyn Lesh, Pro Trail Running Athlete

    SO comefy and effective. I got my coros arm band when I wanted a backup for my chest strap monitor. (like three years ago) And I never went back. Slight (~1sec) delay from chest strap (because the arm band is optical vs. detecting the heart's electrical activity) but the numbers line up and the arm band is so so much more comfortable that the slight delay is absolutely worth it.

    Recommended in CCC by UTMB

    James Sieber, Running & Strength Coach || Peak Pursuits Podcast Host

    This arm band changed the Heart Rate game for me. Chest straps never worked, I felt constircted and chaffed. When Coros brought this band out, it allowed me to trust and use HR data again. The data seems very accurate, only with a small delay (meaning it's not reliable for very short efforts or immediate feedback starting an effort). This is the go-to option for people I coach. Only issues have been with tattoos, and they tend to last ~24 months.

    Recommended in Gear

    Mercedes Siegle-Gaither, Professional Trail and Ultra Runner

    I’ve been using this HR monitor for over a year now and I love it because it doesn’t chafe like my previous chest strap HR monitor. It’s rechargeable and I only have to charge it every week and a half or so! It’s great for running, biking, yoga, paddle boarding, skinning.. the list goes on!

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    Brian Whitfield, Runner

    Data,Data,Data

    Recommended in Broken Arrow 46k

    Klaire Rhodes, Professional Trail/Mountain Runner

    The only HR monitor I'll actually remember to use!

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    Sebastian Salsbury, sebrunsfar

    Data is incredibly important in this sport, and making sure you’re taking full advantage of it is huge.

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    Kevin Lara, Photographer

    A convenient heart rate monitor that fits perfectly around my upper arm. Extremely accurate for the most reliable heart rate data. Never even notice it!

    Recommended in Trail Running Gear

    Mike Wilkinson, Ultra Runner

    Accurate HR without having to wear chest strap. Don't even notice it on my arm.

    Recommended in Hardrock 100 Endurance Run

    Kat Callaway, World's Okayest Athlete

    I wore chest strap HRMs for years and always had issues with them. I hated always having to keep the contacts wet, and it seems like every time I had to change a battery, the sensor would stop working. Enter the Coros armband HRM! So easy to pair with my Garmin and the PM5 monitors on my Concept 2 ergs, and it's optical so no contacts to worry about. Battery life is excellent, and I get a notification on my Garmin and my phone when it needs to be charged. Plus, it's super comfortable and the strap us easy to clean. I also love that it's rechargeable. I will never go back to using a chest strap again!

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    Cody McKesson, Trail / Ultra Runner

    Data based pacing 😎

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    Jenna Bensko, Amateur Trail Runner and Running Coach

    Big data fan and this HRM is unmatched

    Recommended in Broken Arrow 46k

    Emi Stretton, What Gets Me Through the Miles

    I use the COROS Heart Rate Monitor to get a more accurate picture of my effort, especially during long runs and ultra training. It helps me keep an eye on heart rate, effort and pacing so I can better understand what my body is actually doing—not just what my pace says.

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    Clare Farrow, ultrarunner

    1,000x better than wearing a chest strap and also way more accurate than wrist based HR

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    Anna Louden, Professional Trail Runner

    I promise you won't even notice you're wearing it. I'm not really a data nerd when it comes to my running, but when it's this easy to collect HR date, why not?

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    Grace Eversaul, Trail Runner

    Wear on every run.

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    Joe Hanson Vazquez, Trail Runner

    Best on the market.

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    Meg Cooke, Mountain Athlete, Materials Scientist

    Nerds like me need data. And I will never awkwardly adjust a chest HR strap around a sports bra ever again thanks to this delightful product. The studies have been done, yes it's within the same margins of error as a chest strap. Just make the shift already and be a happier data nerd/accurate collector of HR data.

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    Daniel Weissauer, Race Director, Ultrarunner

    For the most accurate heart rate feedback, I use the Coros heart rate arm band. I forget I have it on when I'm racing, and end up with the best feedback when analyzing my effort.

    Recommended in My 2025 AC100 Run

    Julyssa Martinez, Distance Runner | Nutrition Student

    Reliable heart rate sensing vs. your traditional watch

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    Isabella Poulos, Trail and mountain running

    It's really nice to have accurate heart rate data during training and races. Seamlessly connects to my garmin and it's so comfortable I forget I'm wearing it.

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    Sara Aranda, Trail/Ultra Coach, Athlete, Creative

    I'm so glad I got myself this heart rate armband. It pairs easily with my watches, and as far as I can tell, the HR data is accurate. It is definitely far more accurate than just using my watch to read HR via the wrist (I have small wrists, and watches don't sit very flush). Using this armband ensures my watch doesn't "cadence-lock," which is a phenomenon that occurs when a watch interprets the impact of your running cadence as HR, skewing the workout data with incorrect values. Cadence lock can happen if a watch isn't flat against the skin or if your skin temperature drops too much due to cold weather. The COROS armband has avoided these issues altogether in my experience. The battery life is decently long, and the Bluetooth tech makes it easy to pair. I've enjoyed the orange color, as dirt and sweat won't show up as easily. I definitely recommend colors that won't highlight the grime of training! Plus, it's easy to detach the band for washing. I also like how relatively small/lightweight the HR monitor is.

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    Johnny Brazas, Ultrarunner | Girl Dad | Endurance Athlete

    Fantastic HR monitor. Easy to use, comfortable, great battery life, and real-time updates.

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