Magene H803 Heart Rate Armband | Dual-Mode ANT+ & Bluetooth

Train Smarter. Perform Better.

Train smarter, not harder. The Magene H803 Heart Rate Armband delivers clinical-grade accuracy in a sleek, lightweight design built for serious athletes and fitness enthusiasts alike. Whether you're cycling through mountain trails, crushing a HIIT session, or tracking your recovery, the H803 keeps you in the zone with real-time heart rate data you can trust.

Engineered for precision and comfort, the H803 features a flexible arm strap that adjusts from 190mm to 310mm, fitting virtually any arm size securely without restricting movement. Its dual-mode wireless connectivity — ANT+ and Bluetooth — pairs effortlessly with your favorite training apps and devices, from Garmin and Zwift to Bryton and IGPSPORT.

Key Features

• ❤️ Heart Rate Accuracy: ±1 rpm — professional-grade precision
• 📡 Dual Connectivity: ANT+ & Bluetooth for universal device compatibility
• 🔋 Battery Life: Up to 4.5 hours of continuous monitoring
• ⚡ Magnetic Charging: Convenient, cable-free magnetic suction charging
• 📏 Adjustable Fit: Arm strap range 190–310mm for all body types
• ⚖️ Ultra-Lightweight: Sensor 12g + Arm strap 9g — you'll forget it's there
• 💚 Heart Rate Range: 40–220 rpm — covers every intensity level
• 🚫 No Harmful Chemicals: Skin-safe materials for extended wear

SPECIFICATIONS

Arm strap adjustment range: 190~310mm

Battery life: 4.5h

Brand Name: Magene

Charging method: magnetic suction charging

Heart rate accuracy: 1 ± rpm

Heart rate range: 40~220rpm

High-concerned chemical: None

Model Number: H803

Sensor size: 4.4 x31.6 x11.2mm

Weight: Sensor 12g Arm strap 9g

Wireless interface: ANT+, Bluetooth

ANT+ compatible Include

Garmin、Bryton、IGPSPORT、ZWIFT、BKOOL ，ONELAP, any other device which has ANT+