Eye-tracking Samsung Galaxy unveiled
The Galaxy S4 follows on from last year's S3, a product that sold over 40 million units worldwide.
At a lavish, Broadway-themed event in New York, the company also demoed the phone's ability to take two different pictures at once.
Analysts widely regard Samsung to be the biggest challenger to Apple's dominance of mobile products.
The Galaxy S4 will be rolled out globally at the end of April.
The company's head of mobile communications, JK Shin said 327 mobile operatiors in 155 countries will carry the handset, Kazinform has learnt from BBC News.
In the UK, Vodafone, Three, Orange, T-Mobile and EE have all announced plans to offer the device on their networks.
Through a series of role-playing scenes, the South Korean firm demonstrated the phone's key features.
Much was made of the device's ability to be controlled without touching it.
Using "Smart pause", the user can pause a video by looking away from the screen.
Additionally, the "Smart Scroll" software analyses both the user's eyes and wrist to scroll through emails and other content.
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