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New Samsung Galaxy S5 smartphones are seen on a display at the Mobile World Congress in BarcelonaReuters

Samsung Electronics is tight-lipped on the release date of its upcoming flagship device dubbed as Samsung Galaxy S6 but several reports have claimed that it would see the light of the day in the first quarter of 2015.

It is reported that Samsung Galaxy S6 could be unveiled at the upcoming Mobile World Congress (MWC) to be held in Barcelona, Spain, from 2 to 5 March, 2015. It was earlier reported that the device could be announced as early as February next year but nothing is confirmed yet.

Going by Samsung's tradition of releasing its flagship smartphones, it won't come as a surprise if the Galaxy S6 is unveiled in February or March before releasing it to the market after a month or two.

The South Korean electronics giant is expected to bring drastic change to the Galaxy S6 following the poor performance of its predecessor. The earning of the company in the third quarter of 2014 was below the expectations with its profit from mobile division falling 73.9 percent to 1.75 trillion won ($1.6 billion).

The codename of the Galaxy S6 is Project Zero, unlike the names Samsung had used earlier like Project J for the Galaxy S4, Project K for the Galaxy S5, Project H for the Galaxy Note 3, and Project T for the Galaxy Note 4, indicating that it could be a complete revamp, according to a report by SamMobile.

Samsung hasn't revealed the features of the Galaxy S6 but all the alleged key specifications of the device have been exposed by the media over the last few weeks.

It is reported that the Samsung Galaxy S6 might boast of a 1440 x 2560 screen resolution with 554ppi. One can't rule out a 3840x2160 display resolution too, as the company had earlier said that such technology could be a reality in 2015. It is expected to be powered by Qualcomm Snapdragon 810 / Exynos 7420 processor and run on Android 5.0 Lollipop.