Timex Unisex TW5K86300F5 Ironman Classic 50 Move + Watch with Black Resin Band Imported Digital sport watch featuring Indiglo nightlight, goal progress notifications, and activity tracker with ability to sync with smartphone;43 mm resin case with acrylic dial window;Quartz movement with digital display;Captures all-day activity including steps, distance, and calories burned;Connects with IOS & Android Smartphone (Bluetooth and/or NFC);Water resistant to 100 feet