Samsung unveils two big smartphones
Both phones have 5.7in (14.5cm) screens and are going on sale earlier in the year than their previous generations.
The launches follow five successive falls in Samsung Electronics' quarterly profits, reports BBC News.
Analysts have said that the popularity of mid-range phones from Chinese rivals, and Apple's shift to bigger iPhones, have dented demand for Samsung's devices.
However, the firm remains the world leader in terms of overall smartphone shipments.
The announcements were made at a press conference in New York.









