The Samsung Galaxy Gear is a smartwatch produced by Samsung Electronics in the Samsung Gear family of devices. Unveiled during a Samsung Unpacked event in Berlin, Germany on September 4, 2013, the device serves as a companion for all Samsung Galaxy smartphones and tablets which runs on Android 4.3 "Jelly Bean" or newer. It was released on September 25, 2013. Originally released as an Android-based device, Samsung replaced the operating system with Tizen through the May 2014 software update.