Navihood A3 Heart Rate Monitor

Accurate Heart Rate Data

The Navihood A3 uses third-generation ECG heart rate measurement technology, backed by over ten years of algorithm development and data from millions of users.

Designed to provide accurate heart rate monitoring while cycling, running, hiking, and other activities.

Lightweight & Compact

At just 10 g, the A3 is designed for comfortable all-day use without adding noticeable weight.

Secure, Comfortable Fit

The narrow-frame design helps prevent the transmitter from being pushed loose by muscle movement during intense exercise.

The integrated transmitter and strap design provides a secure connection, while the wide metal buckle helps maintain reliable contact.

Bluetooth BLE 5.0 & ANT+

Compatible with both Bluetooth BLE 5.0 and ANT+.

Works with popular cycling apps and GPS devices, including:

• Navihood

• Zwift

• Garmin Connect

• Garmin

• Wahoo

• Bryton

• Suunto

• Huawei GT

• And more

Built for Sweat & Training

The strap and electrodes are bonded using industrial hot-press technology for improved durability.

Designed to withstand 1,000 hours of Level 7 salt-spray testing, helping protect against sweat and moisture during demanding workouts.

LED Indicator

• Slow flashing: Connecting to a GPS bike computer or app via Bluetooth.

• Solid light: Successfully connected.

• Fast flashing / unstable data: Battery may be low. Replace the battery.

Easy Battery Replacement

An included battery-cover tool makes battery replacement quick and helps prevent scratches.

Battery Replacement

1. Insert the included tool into the battery cover.

2. Rotate the cover to the unlock position.

3. Remove the battery cover using the tool.

4. Remove the battery insulation film.

5. Reinstall the battery cover.

Product Specifications