Everlast TR3 Fitness Tracker Wireless Activity Tracker Watch with OLED Display & Water Resistance - SYNCs with Free Tracker App One Touch Display, Rechargeable Battery. Counts Steps, Calories Burned & Distance Traveled, Set Daily Goals, Sleep Monitor, 12/ 24 HR Time & Date Display. 30 Day Tracker Memory Chinese-automatic Movement Case Diameter: 42mm Water resistant to 10m (33ft):in general, withstands splashes and rain, but not immersion