M4 Smart bracelet Heart Rate Monitor Wristband Pedometer Sports smart watch Band Health Fitness bracelet band
Be the first to review this product
Quick Overview
- BT: 4.0
- Screen size: 0.96in
- Battery: 3.7V, 90mAh
- Theoretical standy time: 10 days
- Theoretical working time: about a week
- Waterproof: IP67