Test & Review: COROS Arm Heart Rate Monitor

I’ve always used the Garmin chest strap for accurate heart rate monitoring whilst training until recently when I started using the Coros HR monitor. The Coros Heart Rate Monitor is worn on the upper arm and is a device designed to provide accurate heart rate measurements for athletes and fitness enthusiasts.

I’ve tested this device over the past couple of weeks, from Mountain ultramarathons to HITT sessions in the gym. In my review, I will cover the key aspects of the device, including its design, functionality, accuracy, battery life, compatibility, and overall performance. Should you buy it?

Design and Comfort

The Coros Arm Heart Rate Monitor features a sleek and lightweight design, weighs only 19g and is constructed with a soft and stretchy fabric material, making it comfortable to wear during various activities. The adjustable strap ensures a snug fit on different arm sizes without causing discomfort, even during extended workouts.

Its minimalist design is unobtrusive, allowing users to focus on their exercise rather than the device. It also features a secure Velcro enclosure which enables you to remove the sensor all together to allow cleaning.

Functionality

This heart rate monitor uses optical sensor technology to measure heart rate. The device is worn on the upper arm, which can offer more stable readings compared to wrist-based monitors, especially during high-intensity activities. It syncs seamlessly with Coros watches and other fitness devices via Bluetooth, providing real-time heart rate data.