With a screen measuring 6.3in (16cm) diagonally, the Galaxy Mega from Samsung is almost as big as a 7in tablet computer.

　　Samsung says the Mega is a hybrid that combines the portability of a smartphone with the immersive experience that a tablet offers for movies, books, music and games. Phones of this size are typically referred to as phablets.

　　Samsung is known for big phones. Its flagship Galaxy S4 is 5in (12.5cm), while the Galaxy Note 2 is 5.5in (14cm). Apple's iPhone 5 is 4in (10cm).

　　Samsung is also known for offering a variety of devices, with different screen sizes and prices, to target a range of consumers. Because of that, it's now the leading maker of phones.

　　Apple, in contrast, has been releasing one model a year that targets high-end consumers. A new iPhone is expected this autumn.