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COROS Heart Rate Monitor - Grey
A precision-designed optical heart rate monitor that’s more comfortable than a chest strap—delivering 38 hours of accurate data from your arm, not your wrist.
In stock. Next day delivery available.
Healf Zone members get free next day delivery on all orders.
Buy now, pay later from £17.25/mo
Key Benefits
-
Delivers precise heart rate readings.
-
Comfortable alternative to chest straps.
-
Tracks up to three devices at once.
-
Long battery life for uninterrupted use.
-
Automatic power-on with wear detection.
The COROS Heart Rate Monitor offers a comfortable, arm-based alternative to traditional chest straps—without sacrificing accuracy. Using an advanced multi-channel optical sensor, it delivers high-quality heart rate data you can trust during training or everyday movement. The soft, textured band sits snug against your arm, staying secure during intense sessions without slipping or chafing.
It connects effortlessly to up to three Bluetooth-enabled devices at once, including smartwatches, indoor trainers, and bike computers. With automatic wear detection, the monitor powers on when worn and syncs with your paired devices—no buttons needed. The low-profile design stays out of the way, letting you focus on your workout, not your kit.
You’ll get up to 38 hours of use on a single charge, or up to 80 days in standby mode. The sensor detaches easily from the band for quick cleaning, while a magnetic USB cable keeps recharging simple.
Designed with accuracy in mind and comfort at its core, the COROS Heart Rate Monitor helps support a more consistent, data-informed approach to movement—wherever you are in your wellbeing journey.
COROS is a performance sports technology brand built for athletes who push limits. Inspired by the outdoors and driven by endurance, COROS designs high-grade gear tested in the world’s most extreme conditions. Every product blends advanced engineering with intuitive design to support serious training and exploration. Created by athletes, for athletes—COROS is made to perform when it matters most.
With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.
Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
For full setup and usage instructions, please refer to the user manual that comes with your device.
SPECIFICATIONS:
SIZE AND WEIGHT
Dimensions: 42.5 x 28.4 x 9.1 mm
Weight - Sensor Only: 9.7 g
Weight - Sensor + Band: 19 g
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 (18–32 cm)
Wearing Position: Bicep
CONNECTIVITY
Wireless Connection: Bluetooth
Supported Devices: Bluetooth-compatible devices that receive heart rate data
Supports simultaneous connection of 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, connects to the sensor using a magnetic interface
COROS Heart Rate Monitor - Grey
A precision-designed optical heart rate monitor that’s more comfortable than a chest strap—delivering 38 hours of accurate data from your arm, not your wrist.
In stock. Next day delivery available.
Healf Zone members get free next day delivery on all orders.
Buy now, pay later from £17.25/mo
Key Benefits
-
Delivers precise heart rate readings.
-
Comfortable alternative to chest straps.
-
Tracks up to three devices at once.
-
Long battery life for uninterrupted use.
-
Automatic power-on with wear detection.
The COROS Heart Rate Monitor offers a comfortable, arm-based alternative to traditional chest straps—without sacrificing accuracy. Using an advanced multi-channel optical sensor, it delivers high-quality heart rate data you can trust during training or everyday movement. The soft, textured band sits snug against your arm, staying secure during intense sessions without slipping or chafing.
It connects effortlessly to up to three Bluetooth-enabled devices at once, including smartwatches, indoor trainers, and bike computers. With automatic wear detection, the monitor powers on when worn and syncs with your paired devices—no buttons needed. The low-profile design stays out of the way, letting you focus on your workout, not your kit.
You’ll get up to 38 hours of use on a single charge, or up to 80 days in standby mode. The sensor detaches easily from the band for quick cleaning, while a magnetic USB cable keeps recharging simple.
Designed with accuracy in mind and comfort at its core, the COROS Heart Rate Monitor helps support a more consistent, data-informed approach to movement—wherever you are in your wellbeing journey.
COROS is a performance sports technology brand built for athletes who push limits. Inspired by the outdoors and driven by endurance, COROS designs high-grade gear tested in the world’s most extreme conditions. Every product blends advanced engineering with intuitive design to support serious training and exploration. Created by athletes, for athletes—COROS is made to perform when it matters most.
With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.
Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
For full setup and usage instructions, please refer to the user manual that comes with your device.
SPECIFICATIONS:
SIZE AND WEIGHT
Dimensions: 42.5 x 28.4 x 9.1 mm
Weight - Sensor Only: 9.7 g
Weight - Sensor + Band: 19 g
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 (18–32 cm)
Wearing Position: Bicep
CONNECTIVITY
Wireless Connection: Bluetooth
Supported Devices: Bluetooth-compatible devices that receive heart rate data
Supports simultaneous connection of 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, connects to the sensor using a magnetic interface
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Frequently asked questions
Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.
The Healf Source offers detailed insights into different aspects of wellbeing, as well as guidance, research, recipes, and more to help you invest in your personal wellbeing journey. You can also subscribe to our weekly newsletters for the latest updates at Healf and in the wellbeing industry. Subscribe via the sign-up block at the bottom of this page.
We love people who check ingredients as carefully as we do, so you'll find detailed information about the ingredients used on every product page (where applicable). If you see something you'd like to flag with us or have additional questions, please don't hesitate to get in touch—we'd love to hear from you.
Healf Curation Process™
Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.
The Discovery
Expert Validation
Community Testing
The Discovery
Expert Validation