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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.
| Order Value | Service | Estimated Delivery | Cost |
|---|---|---|---|
| Under £39.99 | Royal Mail Tracked | 2–3 working days from dispatch | £4.99 |
| £39.99 and over | Royal Mail Tracked | 2–3 working days from dispatch | FREE |
| Any order — Express | Royal Mail Tracked 24hr / Parcel Force 24hr | Next working day from dispatch | £6.99 |
| Bikes | Parcel Force 48hr Signed For | 2 working days from dispatch | FREE |
Delivery times shown are from dispatch, not from the point of ordering. As we source products from a range of suppliers, lead times can vary — please check the product page, your cart, or your order confirmation for the most accurate estimate for this item.
Some remote UK postcodes (Highlands, Islands) may carry a courier surcharge on larger orders — we will always contact you before applying any additional charge.
Questions? Email sales@cyclestore.co.uk with your order number.
Terms and conditions:
- Price match must take into account any shipping charges applicable.
- Our price match promise only applies to online retailers, However this does not include auction websites such as eBay or non-UK based competitors or websites not operating secure (SSL) payment systems.
- Item must be in stock with the competitor and ourselves
- We reserve the right to refuse a price match for any other reason not previously mentioned at any time.