Android Wear OS 3.5, One UI Watch 4.5 Dimensions 45.4 x 45.4 x 10.5 mm (1.79 x 1.79 x 0.41 in) Weight 46.5 g (1.66 oz) Build Glass front (Sapphire crystal), titanium frame DISPLAY Super AMOLED Size 1.4 inches Resolution 450 x 450 pixels (~321 ppi density), Always-on display MIL-STD-810H compliant 50m water resistant (IP68) Compatible with standard 20mm straps ECG certified Blood pressure monitor Very clean watch used less than 5 times , grey color. Bought originally from samsung with warranty and receipt is there for 1500dhs