【Excellent Condition, Lightly Used】COROS Heart Rate Sensor Armband Heart Rate Monitor

Thank you for viewing.

I purchased this COROS heart rate monitor because I wanted to measure my heart rate more accurately and found that wrist-worn devices can have errors due to movement. (It also pairs well with Garmin.)

Purchased: June 2025
Used: 5 times

However, I started running with the goal of completing a marathon, but running after the age of 50 is tough, and I injured my leg.
Since I won't be able to run for a while, I've decided to sell it.

The band has been disinfected and washed. There are no particular stains (please see photos).

There are no scratches, and it works perfectly, but please understand that this is a used item before purchasing.

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COROS Heart Rate Sensor Armband - Optical Heart Rate Monitor, Bluetooth Compatible, High Accuracy, Long Battery Life, Rechargeable [Japan Official]

[High-Accuracy Design] The COROS optical heart rate sensor provides heart rate accuracy comparable to chest strap heart rate monitors. It breaks through the limitations of wrist-based measurements, delivering accurate data for approximately 38 continuous hours across all activities, including cycling, running, climbing, and high-intensity interval training.

[Why the Arm?] Wrist-worn heart rate sensors are convenient, but accuracy remains a challenge for all brands and products. However, the upper arm has optimal blood flow, allowing for more reliable data when the heart rate sensor is worn there.

[Lasting Comfort] Chest strap heart rate monitors are highly accurate, but their comfort can be lacking. The COROS heart rate sensor uses soft fabric and a thin band to prevent snagging. This allows for a secure and comfortable fit on your arm. The adjustable buckle ensures a snug fit against your skin. Additionally, the hook-and-loop fastener makes it easy to remove for washing.

[No Buttons, No Hassle] The COROS heart rate sensor features automatic wear detection, allowing it to automatically turn on and off based on whether it's being worn. It can be simultaneously connected to other sports watches or Bluetooth-compatible devices (such as indoor trainers, cycle computers, etc.).

If you have any questions, please feel free to message us.