Newly designed hardware and algorithms help you accurately monitor your heart rate while exercising, maximising your results.

The Magene H803 uses advanced optical-sensing technology to provide precise, real-time heart-rate data across a wide range of activities. Its adjustable, breathable armband ensures a secure and comfortable fit, making it ideal for long training sessions. The lightweight design allows you to move freely, while the soft strap prevents irritation and stays firmly in place.

With support for both ANT+ and Bluetooth, the H803 pairs effortlessly with smartphones, sports watches, bike computers, and popular training apps. A rechargeable battery offering up to 45 hours of use ensures long‑lasting performance, and the durable construction makes it suitable for both indoor and outdoor training environments.

Real-time heart rate tracking

H803 heart rate armband can collect the variation data through the Photodiode and calculate the heart rate. With the Dual-beam array, you can acquire more accurate detection data and capture real-time heart rate changes more efficiently.

ANT+ and Bluetooth compatibility

2 data copies for 1 workout, recording via ANT+ device and Bluetooth App at the same time, with stable transmission. ANT+: Magene, Wahoo, IGPSPORT, Bryton, Black Bird. Bluetooth: Zwift, Onelap, Strava, Kinomap, Wahoo Fitness, TrainerRoad, Rouvy, Fulgaz, Nike Run Clus, Openrider, Elite HRV, Selfloops HRV

Technical Specifications

• Detectable HR Range: 40 - 220BPM
• Charging: Magnetic
• Monitor size: 44x31.6x11.2mm
• Armband size: 370x25mm
• Adjustment range: 190 - 310mm
• Cleaning advice: Gentle hand wash
• Wireless protocol: Bluetooth, ANT+
• Weight: 21g
• Battery life: 45 Hours

What's in the box?

• X1 monitor
• X1 Lycra elastic armband
• X1 magnetic charging cable
• X1 User manual

• Optical heart-rate sensing: Provides accurate, real-time monitoring without the need for a chest strap.
• Adjustable armband design: Soft, breathable, and secure for maximum comfort during any activity.
• Dual-protocol connectivity: Compatible with ANT+ and Bluetooth devices for seamless integration.
• Rechargeable battery: Offers up to 45 hours of continuous use on a single charge.
• Lightweight and unobtrusive: Designed for comfort and freedom of movement.
• Wide app compatibility: Works with Zwift, Strava, Peloton, Wahoo, Garmin, and other major fitness platforms.
• Versatile for all sports: Suitable for running, cycling, gym training, yoga, and outdoor adventures.