Samsung Electronics will begin to market its newly released flagship smartphone the Galaxy S6 starting April 10 and expects sales to outperform the Galaxy S4, the vendor's best-selling model so far, according to Andy Tu, general manager of Samsung's mobile communication business in Taiwan.

Samsung has responded to criticism of the Galaxy S5 with great changes in terms of design and materials, expecting the new design to bring in significant replacement demand for the Galaxy family products, Tu said on the sidelines of a pre-MWC 2015 event.

Samsung will focus on promoting two flagship models, the Galaxy S6 and Galaxy Note 4, plus mid-range A- and E-series Galaxy models from the second quarter of 2015, Tu revealed.

The Galaxy S6 also sports high-end cameras, wireless charging, information security and mobile payment capabilities.

The new flagship is equipped with a 16-megapixel real camera with an F1.9 wide-angle lens and optical image stabilization as well as 5-megapixel front camera with real-time HDR.

The Samsung Galaxy S6 also has a built-in wireless charging module supporting both PMA and WPC standards. It boasts a charging speed 1.5 times faster than the Galaxy S5 and is able to get enough power for four hours use in just 10 minutes of charging.

The Galaxy S6 will offer Samsung Pay mobile-payment services, starting in the US and Korea initially in the second half of 2015.