• SIZE: Φ48.0mm,  14.5mm(Thickness)(mm) 
• VA Size: 31.0mm
• Watch Waterproof: 50M   Belt Waterproof:10M
• Lens Material: Glass
• Case Material: PC + GF  Case Back Material:PC + GF
• Strap Material: PU
• Button Material: ABS
•  Battery Type:Non Rechargeable    Capacity:220 mAh 
• Working Time: 45 Months(Sensor Off), 20 Months(Sensor on regularly）
• Functions:

■HH:MM:SS ■12/24H
■DD-MM or MM-DD ■Year/Month/Date/Day of week
■Timing from Button
■Heart Rate Alarm■Sound Alerts
■HRM RANGE: 40-220 BPM
■Connection Frequency : 5.3KHZ
■Stopwatch