The Sony Xperia Z2 is a high-end Android smartphone manufactured by Sony. Under the codename "Sirius", Xperia Z2 serves as the successor to the Sony Xperia Z1. Like its predecessor, the Xperia Z2 is water and dust proof with an IP rating of IP55 and IP58. The phone features a new display, a Snapdragon 801 processor and the ability to record 4K videos. The Xperia Z2 also allows removable microSD storage.

It was unveiled alongside the Sony Xperia Z2 Tablet and the Sony Xperia M2 during the 2014 Mobile World Congress in Barcelona, Spain, on February 24, 2014, and was first released in Taiwan on March 24, 2014, in Singapore on April 5, 2014, and entered more markets in May 2014. However, manufacturing problems concerning various third-party components have set back the Xperia Z2's further global rollout to June 2014.