Much have been said about the next Galaxy S smartphone from Samsung, which according to blog sites will be deployed with a more powerful quad-core processor, higher image density of 441 ppi and will take the name Galaxy S4.

Hardly surprising upgrades for a well-loved smartphone that in 2012 outpaced Apple's iPhone 5 as the most popular phone brand in the world. But for the fourth edition, reports said, Samsung would unveil something that is unbreakable not only bendable screen as earlier speculations suggested.

This sturdiness will be mostly focused on the S4's larger screen size, which is likely to closely resemble and catch up with the almost overstretched front-face of another Samsung smartphone - the Galaxy Note 2, also regarded as a phablet.

According to UBS analyst Nicolas Gaudois, indications are strong that Samsung has made preparations "for volume manufacturing of unbreakable plastic substrate displays," production activities that were likely meant to benefit the replacement for the S3, which already delivered more than 30 million worldwide buys for Samsung.

And to sustain that success, the South Korean tech giant is highly expected to advance the S4 debut, pushing it a month earlier as against to the S3's May 2012 launch, Mr Gaudois told Reuters.

"Looking to the first half of 2013, we see evidence of Samsung likely accelerating the release of the Galaxy S4 . . . All in all, we could see a strong products push in the high-end in the first half, followed by other releases," Reuters quoted the UBS analyst as saying.

His words suggest that Samsung will likely apply better manufacturing technology for all its flagship smartphones and possibly in the tablet area, where the company remains a distant second to Apple's iPad.

These innovations will include the entry of "bendable or even foldable displays by 2014," in the Samsung product lines, CNET said, citing projections made by Sanford Bernstein analyst Mark Newman.

This breakthrough device features will likely be introduced in the Galaxy Note 3 or the Galaxy S5 or both, depending on how soon the new screen technology is perfected by Samsung or at least deemed ready for commercial release, blog reports said.

"Extra-tough plastic substrate is set to replace all-too-fragile glass displays because OLED screens can be covered by either. Samsung is also reported to be working on flexible screens, with the S4 possibly in line for a curved display," CNET said.

The only sure thing at the moment is that Samsung is furiously working for a definite 'game changer' to start off the products that it will unleash next year, Mr Newman said.