The largest mobile showcase in the world, the Mobile World Congress, wrapped up in Barcelona, Spain this week. There were a lot of new gadgets and gizmos introduced during the expo, so here's a rundown of the most buzz-worthy new devices.

Samsung Galaxy S5

Since it's headed to developing markets, like in Asia and Latin America, Nokia is keeping the price down. The basic Nokia X phone will cost the equivalent of $122, with other versions that feature enhancements in camera, storage, and/or screen size costing slightly more.

Mobile: Two Major Directions

Of course, there were lots of other gadgets, wearables, and smartphones at the Mobile World Congress, but these three best represent the direction of the mobile electronics market this year. For the developed world, an emphasis on easy, beefed up privacy and security can be seen in the Samsung Galaxy S5. But the high-end "regular" smartphone market has mainly been tapped, which is why you'll see more phones like the LG G Pro 2 and the Nokia X.

Both of those devices are attempting to appeal to buyers outside the average high-end four-to-five-inch smartphone market. The LG G Pro 2 appealing to buyers, especially in Asia, that want a device with all the features of a smartphone, but with a tablet-like experience. Meanwhile, with markets like Latin America exploding in smartphone purchasing and use, cheaper devices like the Nokia X are where the money is at, this year and in the near term future. Look for more manufacturers trying to make standout mid-tier smartphones this year.