COROS Heart Rate Sensor Armband - Coros

This is the COROS Heart Rate Sensor.

It has been used a few times but is in beautiful condition with no scratches or dirt.

Brand: COROS
Compatible Devices: Smartphone
Screen Size: 10
Sensor Type: Optical
UPC: 810005782548
[Design Pursuing High Accuracy] 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 such as cycling, running, climbing, and high-intensity interval training.
[Why the Arm?] Wrist-based 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 on the arm.
[Lasting Comfort] Chest strap heart rate monitors offer high accuracy, but their comfort can be lacking. The COROS Heart Rate Sensor uses soft fabric and a thin band that prevents snagging, allowing it to be worn comfortably and securely on the arm. The adjustable buckle ensures a snug fit against the skin. It also features a hook-and-loop fastener for easy removal during washing.
[No Buttons, No Frustration] The COROS Heart Rate Sensor is equipped with automatic wearing detection, allowing it to automatically turn on and off based on whether it is being worn. It can be simultaneously connected to other sports watches or Bluetooth-compatible devices (such as indoor trainers, cycle computers, etc.).
[Excellent Band] High-accuracy measurement functions by securely fixing the optical heart rate sensor to the skin. The COROS band is designed to ensure the sensor adheres closely to the arm, preventing external light from entering.