Samsung Galaxy Watch Smartwatch in classic watch design 3.3 cm (1.3 inch) Super AMOLED Always On Display 4 GB internal memory Intuitive operation via bezel Sports functions with activity detection and GPS route recording Integrated MP3 player for hundreds of favorite songs on your wrist Bluetooth 4.2, WiFi 802.11 b/g/n, GPS, NFC Battery life up to 7 days Compatible with many Galaxy, Android and iOS smartphones