Accurate real-time heart rate monitoring
The H803 heart rate armband can collect variation data through the photodiode and calculate the heart rate. With dual beams, you can obtain more accurate detection data and capture heart rate changes in real time more efficiently.

High heart rate alert for safe exercise
When the heart rate during exercise reaches the preset heart rate alert value, the armband will vibrate to remind you, in a more direct way than the LED light alert. Effectively control the intensity of the exercise and reduce the risk of sports injuries. The H803 heart rate armband allows you to fully focus on your exercise.

Adjustable armband for multi-scenario applications
Comfortable, practical, and lightweight.

Using an elastic Lycra band and straps with Velcro buckles, the armband is comfortable to wear, skin-friendly, with an adjustable range from 19 cm to 31 cm (suitable for a weight range from 40 kg to 120 kg) and applicable to multiple types of exercises.

Thoughtful design for a better user experience
Adopting the IML technique, the H803 case is wear-resistant, scratch-resistant, and fade-resistant. The side button is set independently and you can press it for 2 seconds to turn it on and off.

Ultra-long battery life
45 hours of continuous endurance, meeting the requirements for long-distance training or competitions.

The magnetic charging design allows for contact charging.