The Sony Xperia Z is a touchscreen enabled Android smartphone designed, developed and marketed by Sony. The phone was announced by Sony at CES 2013 and was released on 9 February 2013 in Japan and 1 March 2013 in Singapore and the UK. The Xperia Z was initially shipped with the Android 4.1.2 (Jelly Bean) operating system. The smartphone has Ingress Protection Ratings of IP55 and IP57, making it dust protected, low pressure water jet protected, and waterproof, which allows for immersion under 1 metre of water for up to 30 minutes, and features a 13.1 MP Exmor RS camera sensor as well as a full HD (1080p) display, encompassed in Sony's 'Omni-Balance' Design. Along this, Sony unveiled a variant called Sony Xperia ZL which uses the same hardware as the Xperia Z, but sacrifices water resistance for a smaller frame, a physical camera button and an infrared blaster. In June 2013 Sony unveiled a phablet version of Xperia Z, called the Sony Xperia Z Ultra. Its successor, the Sony Xperia Z1, was released on 20 September 2013.