Additional Information | Batteries: Lithium Ion (Li-Ion); Battery Life: 6 Week Watch mode, 10 Hour Training mode; Built-in Components: GPS Receiver, Heart Rate Monitor; Durability: Water Resistant; Face: 1 x Digital; Movement: Quartz; Watch Design: Round Face Sports; Watch Format: Digital; Wrist Band: Black/Red Strap with Buckle; Feature: Rechargeable |