All eyes are on the upcoming technology event - Mobile World Congress 2015 which will kick off on 2 March in Barcelona and conclude on 5 March, as several flagship devices from world's major smartphone makers like Samsung, HTC, Sony, Microsoft and Huawei are expected to unveil at the event.<br /><br />Some of the most-anticipated devices expected to be announced at the MWC 2015 are Samsung Galaxy S6, Sony Xperia Z4, HTC One (M9), Microsoft Lumia 1330 and Huawei Ascend Mate 7.<br /><br />Samsung Galaxy S6<br /><br />Hype around Samsung's flagship smartphone is huge with gadget lovers expecting it to come with a major overhaul after the disappointing sales of its predecessor, the Galaxy S5.<br /><br />According to reports, the device is expected to feature a 5.5-inch qHD screen with 1440x2560 pixels, Exynos 7420 chip, Android 5.0 Lollipop, 20 mega pixel camera, and 32GB of internal memory and 3GB RAM.<br /><br />HTC One (M9)<br /><br />Gadget lovers will expect the HTC One (M9) to be another great device, following the success of M7 and M8. It is expected to have features like 5-inch screen display, Qualcomm Snapdragon 810 chip, 20 mega pixel main camera and an HTC UltraPixel front snapper, and come in gold, grey and silver colours, according to Bloomberg.<br /><br />However, @upleaks claimed that the device might have a 1920x1080 screen resolution, 3GB RAM, 2840mAh battery, HTC Sense 7, and 20.7 mega pixel main camera and 13 mega pixel or UltraPixel 4 mega pixel front snapper.<br /><br />Sony Xperia Z4<br /><br />After failing to make it at the recently concluded CES 2015, the Xperia Z3 successor is expected to be announced at the MWC 2015. It is reportedly coming with a 5.2-inch Full HD TRILUMINOS display or a 5.5-inch QHD display, a 64-bit processor - Qualcomm Snapdragon 810, Android 5.0 Lollipop, 32GB internal memory and 4GB RAM, 3420mAh battery, and 20.7 mega pixel main camera and 4.8 mega pixel front snapper.<br /><br />Huawei Ascend Mate 7<br /><br />The upcoming phablet from Huawei is expected to come with features like 6.0-inch IPS LCD capacitive touchscreen with 10
