Most smartwatches have your standard LED / OLED / LCD displays, but the Samsung YOUM boasts a flexible AMOLED display that literally wraps around your wrist. It’s powered by a custom version of Google Android and features Google Now, which is always listening for the ‘Ok Google’ command, similar to Google Glass, for real-time notifications.
According to OLED-Info.com: “YOUM panels are bendable – but it’s likely that the first products to use those displays will actually be rigid. The display can be “curved” thought. A plastic based AMOLED will also be shatterproof, and also lighter and thinner compared to glass based OLEDs.”
Official Source: http://www.yankodesign.com/2013/12/03/sammys-got-a-smartwatch-now/