Battery Life Time - 5days( with tracking heart rate) 30days (without tracking heart rate)
OLED Display Size: 0.87"
Battery: 75mAh Lithium Battery
Material: Main Body - Plastic, metal; Strap - Leather
Standby Time: up to 7 days
Charging: USB port on host
Charge Time: 1-2 hours
Size: 250.0 x 17.0 x 10.8 mm
* Product descriptions and part numbers are subject to change, and may not reflect manufacturer product changes. Please check the manufacturer's website and use the item's manufacturer part number to find the most up to date product description.