Smartphone manufacturer Samsung is expected to reveal its new flagship Android device, believed to be the Galaxy S4, during a New York press conference on Thursday.
The South Korean firm has sold more than 40 million Galaxy S3 units since its release in May 2012, and is regarded as a key competitor to Apple's iPhone.
Speculation regarding the S4's new features has been rife in the months leading up to the reveal. Tech blogs have gone back and forth in reporting the veracity of a rumour which suggests the S4 can be controlled by the user's eyes.
According to publications such as The New York Times, the Galaxy S4 features technology that allows users to scroll pages and pause footage using just their eyes. According to publications such as Bloomberg, this is not true.
Less disputed is the expectation that Samsung will again use the Android operating system for its device, albeit a modified version.
Samsung is expected to answer most questions at its reveal event at the Radio City music hall in New York on Thursday.