<p>SEOUL (Reuters) - Samsung Electronics Co will unveil a new version of its flagship Galaxy S smartphone this month, but expectations are low that features such as a bigger screen will lead to a sharp jump in sales given intensifying competition.</p><p>Samsung sent out invitations on Tuesday for "Samsung unPacked 5" event on February 24 at the Mobile World Congress in Barcelona. The launch has been brought forward by around three weeks after sales of Samsung's S4 came in weaker than expected, analysts said.</p><p>The world's biggest smartphone maker is bracing for its weakest mobile annual profit growth in seven years amid fierce competition from Apple Inc and Chinese vendors, and as growth for high-end smartphones eases due to near saturation in many markets.</p><p>The S5 is widely expected to feature a bigger screen, an improved rear camera and biometric functions such as iris recognition or a fingerprint scanner. It may also come with an improved Galaxy Gear smartwatch.</p><p><a href="http://www.reuters.com/article/2014/02/04/us-samsung-galaxy-idUSBREA1303E20140204">Keep reading...</a></p><p>Read also:</p><p><a href="http://economictimes.indiatimes.com/tech/hardware/samsung-electronics-to-unveil-latest-galaxy-smartphone-in-late-feb/articleshow/29840294.cms">Samsung Electronics to unveil latest Galaxy S smartphone in late February</a> (Economic Times)</p><p><a href="http://blogs.wsj.com/digits/2014/02/03/samsung-gears-up-for-galaxy-smartphone-launch-in-barcelona/">Samsung Plans Smartphone Launch in Barcelona</a> (Wall Street Journal (blog))</p><p><a href="http://www.mirror.co.uk/news/technology-science/technology/galaxy-s5-samsung-expected-launch-3110258">Samsung expected to launch new Galaxy S5 smartphone at technology event in ...</a> (Mirror.co.uk)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=d8GL7cYL8azPiXMUu74Y_gosYHjpM&authuser=0&ned=us">580 additional articles.</a></p>