MADRID - Samsung (IW 1000/14) aims to take the mobile world by storm Monday, almost certainly unveiling a new Galaxy S5 smartphone with rumored Apple-fighting features such as a fingerprint scanner and larger screen.

The top smartphone maker coyly announced to journalists an "Unpacked 5" event for the opening day of the February 24-27 Mobile World Congress in Barcelona, Spain.

"We are holding a global launch event of our new flagship product in 2014," its invitation said, using a well-worn technique of not naming the smartphone so as to build anticipation.

The new device will be at the vanguard of Samsung Electronics Co. Ltd.'s defense of its No. 1 position.

The South Korean group sold 300 million smartphones last year, 31% of the nearly one billion sold globally and double archrival Apple Inc.'s 15.6% share, according to U.S. technology research house Gartner Inc.

The Galaxy S5 is variously rumored to have a fingerprint scanner on the home button; a 5.24-inch, full high-definition display; a water and dust-proof case and a 16 megapixel camera.

At the same time, the industry anticipates that Samsung will reveal the latest, possibly thinner, version of its smartwatch, the Galaxy Gear 2, after the first version failed to win over many critics.

It will be one of an array of new "smart devices" to launch at the show, analysts predict, as manufacturers seek alternative sources of revenue during a slowdown in the well-developed smartphone market.