Elevate your workout monitoring with the COROS Heart Rate Monitor armband, expertly designed for active sports use. Unlike daily trackers, this device focuses on delivering precise heart rate data during your most intense sessions. Its large, breathable fabric band (fits arm sizes 9.4 to 16.9 inches) ensures all-day comfort and is easier to clean than traditional chest straps—simply remove the sensor for quick maintenance. The band fits perfectly with a secure textured surface and adjustable buckle, providing a flexible, slip-free experience. Encased in a durable, scratch-resistant shell, the advanced sensor offers reliable, accurate readings, enhancing your training efficiency. Enjoy up to 38 hours of continuous operation or 80 days standby with rapid 2-hour magnetic charging. The smart wear detection powers the device on/off automatically, connecting effortlessly to multiple devices—including COROS watches, sports gear, phones, and fitness apps—supporting up to three devices simultaneously. Experience distraction-free, precise heart rate tracking that adapts to your active lifestyle with COROS.
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COROS Heart Rate Monitor, Comfort, Easy to wear, Auto-wear Detection, Advanced Sensor, Precise Data, Bluetooth, 38 Hours Battery Life, Connects up to 3 Devices at Once, for Run and Bike
Experience ultimate comfort with the COROS Heart Rate Monitor designed for effortless wear during runs and bike rides. Featuring automatic wear detection and an advanced sensor, it delivers precise heart rate data seamlessly. Enjoy extended sessions powered by Bluetooth connectivity with an impressive 38-hour battery life, and connect up to three devices simultaneously for versatile performance tracking.
Sleek and modern design highlights the COROS Heart Rate Monitor's ergonomic build. This full-width image showcases the device's cutting-edge structure and premium finish, emphasizing comfort and usability for athletes of all levels.
Precision and clarity define this detailed image of the COROS heart rate monitor in action. It captures the advanced sensor technology embedded in the device, ensuring users receive accurate readings even during intense workouts.
Showcasing the COROS heart rate monitor worn during an outdoor workout, this vibrant image portrays the device’s flexibility and secure fit. It highlights the product’s capability to provide consistent data during various activities such as running or cycling.
Capturing the versatility of the monitor, this image accentuates the lightweight and compact design that ensures comfort without compromising functionality. Ideal for athletes who demand precision and ease of use in their gear.
This image highlights the robust battery life and connectivity features of the COROS heart rate monitor. Ideal for multi-device usage with extended battery power, it supports athletes through long workout sessions seamlessly.
Designed for both comfort and performance, this visual showcases the monitor’s sleek aesthetics and ergonomic characteristics. It emphasizes the heart rate monitor’s suitability for continuous wear and its adaptability to different sports.
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Size
S
M
L
XL
Men
7-10
10-13
13-15
15-17
Women
7-9
10-12
13-14
15-16
Example Shown : SIZE XL, Hem to Hem 84cm OR 33 ,SIZE L, Hem to Hem 84cm OR 33 ,SIZE M, Hem to Hem 84cm OR 33 ,SIZE S, Hem to Hem 84cm OR 33
Rated 5.00 on the scale 1 - 5 based on 3 customer reviews
Marta W.
09/11/2025
Finally, Heart Rate Tracking That Keeps Up With Me!
I’ve struggled with uncomfortable chest straps before, but this COROS armband feels like it’s barely there. The fabric is breathable and doesn’t slip during sweaty cardio or HIIT. I love how quickly it pairs with my phone and watch—plus, the long battery life means I’m not always worrying about charging.
Alex T.
09/11/2025
From Frustration to Focus: My Workout Transformed
As a dedicated runner, I was fed up with uncomfortable chest straps and unreliable readings on my old trackers. After switching to the COROS Heart Rate Monitor armband, I immediately noticed the difference—a secure, comfortable fit and accurate data that gave me confidence to push harder. The easy maintenance and automatic connection to my watch and phone freed me from distractions, making every session more rewarding and helping me reach new personal bests.
Kevin S.
09/11/2025
Transforms Intense Training with Seamless Comfort
Right out of the box, I noticed the COROS Heart Rate Monitor armband’s premium, breathable strap—it felt soft, not stiff, and was obviously made for active use. The large, adjustable band slipped on easily and stayed secure, even as I powered through sprints and HIIT intervals, never slipping or chafing. The automatic on/off feature took away any worry about battery life, and syncing it with both my phone and fitness watch was effortless, making heart rate tracking truly distraction-free during workouts.