Diesel On Full Guard 2.5 - Men's display smartwatch, diameter: 48 mm, thickness: 13 mm, band width: 24 mm - 3 ATM water resistant Functions: Heart rate tracking, GPS, Google Pay, swimproof, notifications, personalise your dial, control your music, interchangeable watch band and many more Compatible with Android OS 4.4+ and iOS 9.3+ Battery life is estimated to last all day (based on usage) Items delivered: 1 x Diesel display smartwatch, 1 x wireless charger (USB Type), 1 x quick start guide, 1 x warranty booklet