Accurate Monitor Heart Rate, the Best Choice When you Exercise. Newly designed hardware and algorithms help you accurately monitor your heart rate while exercising, maximizing your exercise results.

Specifications: 

• Dimensions: 62.3*35.1*11.5mm
• Chest Strap Length: 4-86cm (±2cm)
• Chest Strap Type: Split Chest Strap
• Waterproof Grade: IP67
• HR Unit: BPM
• HR Accuracy: ±1 BPM
• HR Range: 30-240 BPM
• Product Name: H603
• Battery Life: CR2032*1
• Wireless Protocol: Bluetooth 4.2, ANT+™
• Weight: 16g for heart rate monitor, 30±1g for the chest strap