An image of a person jogging wearing a red top and black shorts, with a white heart rate monitor band on their left wrist.

Coros

Coros Heart Rate Monitor

£69.00

Colour: Grey

Grey Lime Orange

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Experience precision and comfort with the COROS Heart Rate Monitor, designed for athletes who demand accuracy without the inconvenience of a chest strap. Its advanced multi-channel optical sensor ensures precise heart rate tracking, whether you're training in the gym, cycling outdoors, or pushing limits on the trail. With wear detection and seamless Bluetooth connectivity, the COROS Heart Rate Monitor pairs automatically when worn, allowing for effortless tracking and real-time performance insights.

The sleek and lightweight fabric band wraps securely around your arm, providing a snug yet comfortable fit that stays in place without restricting movement. The durable, elasticated band features a secure Velcro enclosure, making it easy to adjust and remove for quick cleaning. By cradling the sensor flush against the skin, it minimises interference from external light, ensuring consistent, high-quality readings across all activities.

Built to keep up with your toughest sessions, the COROS Heart Rate Monitor delivers an impressive 38 hours of continuous use on a single charge, with up to 80 days of standby time. Stay connected to your training ecosystem with up to three simultaneous Bluetooth connections, linking effortlessly to COROS watches, bike computers, and other Bluetooth-compatible fitness devices. With a magnetic USB charging cable for fast recharging, this heart rate monitor is engineered for endurance, reliability, and peak performance.

Key Benefits

Multi-Channel Optical Sensor – Delivers highly accurate heart rate data.
Sleek & Comfortable Design – Soft fabric band stays secure without irritation.
Adjustable & Washable Band – Easy to customise fit and remove for cleaning.
Wear Detection – Automatically powers on and connects when worn.
Long Battery Life – 38 hours of continuous operation or 80 days in standby mode.
Multiple Device Connectivity – Pairs with up to three Bluetooth-enabled devices.
Magnetic USB Charging – Quick and easy charging with an included cable.

Product Specifications

Size and Weight

Dimensions: 42.5 x 28.4 x 9.1mm
Weight (Sensor Only): 9.7g
Weight (Sensor + Band): 19g

Materials

Band Material: Polyester fiber, nylon, spandex

Sensors

Optical Heart Rate Hardware: 5 LED lights with 4 photodetectors

Fit

Arm Size: 7.09-12.6 inches (18-32cm)
Wearing Position: Bicep

Connectivity

Wireless Connection: Bluetooth
Supported Devices: Bluetooth-compatible devices that receive heart rate data
Simultaneous Connections: Supports up to 3 devices
Data Sync: Real-time heart rate data

Durability

Water Resistance: 3 ATM
Working Temperature: -4°F to 122°F (-20°C to 50°C)
Storage Temperature: -4°F to 140°F (-20°C to 60°C)
Charging Temperature: 32°F to 113°F (0°C to 45°C)

Battery

Activity Mode: 38 hours
Standby Mode: 80 days
Battery Capacity: 55 mAh
Charging Time: Less than 2 hours
Charging Cable: USB Type-A with magnetic interface

Why We Choose Coros

We choose Coros because they design cutting-edge GPS sports watches built for athletes who push boundaries. With a focus on accuracy, battery life, and performance-driven features, Coros empowers runners, cyclists, climbers, and outdoor explorers to train smarter and go further.

✅ Endurance First – Industry-leading battery life to support long training sessions and adventures.
💡 Performance Insights – Advanced metrics for running, cycling, swimming, and more.
🌍 Adventure-Ready – Built tough for extreme conditions, from mountain trails to open water.
🏅 Athlete Approved – Trusted by elite endurance athletes and world-record holders.

That’s why Coros is part of the Norths Athlete collection — delivering the tools athletes need to reach new levels of performance and adventure.