World's top smartphone maker Samsung unveiled its fourth generation Galaxy S4 smartphone at a glitzy event at New York City on 14 March. Even before consumers could get their hands on the device, reports have emerged that Samsung has already turned its focus to two new big-screen smartphones which are expected to launch this year.

A trusted informant with Samsung community website SamMobile has revealed that the South Korean giant will launch two big smartphones - Galaxy Mega 5.8 code-named GT-19152 with Dual-SIM slots and Galaxy Mega 6.3 code-named GT-19200 with a 6.3-inch display.

The website also reported the new Galaxy Mega 5.8 will arrive with a white panel and is expected to make its debut around May (week 22). The bigger sibling, Galaxy Mega 6.3, will come in black and white variants around June (week 25).

Earlier in January, SamMobile had reported that Samsung will announce the smartphone version of its flagship Galaxy Player 5.8, an Android based media player with an alias Fonblet 5.8. But now it seems that Samsung might release the former as Galaxy Mega 5.8.  

The second big-screen smartphone, Galaxy Mega 6.3, seems to fit the features of the speculated Galaxy Note 3. Many believe it might well be a moniker of the third iteration of Galaxy Note.

According to earlier speculations, Galaxy Note 3 is expected to sport a 6.3-inch Full HD AMOLED display with Samsung's in-house built Octa-core Exynos 5 processor and pack Smart camera and touch-free features as seen in the recently released Galaxy S4.