LG is set to unveil its first all-metal flagship smartphone at Mobile World Congress this weekend. The LG G5 is expected to steer the company's smartphone business in a different direction and introduce a new modular concept called the Magic Slot.

Leaks thus far describe the purported Magic Slot as an accessory port on the bottom of the LG G5 that can expand or enhance the phone's capabilities. It's not all that different (at least, in theory) from what fully modular smartphones like Project Ara are hoping to accomplish except on a smaller scale.

LG is expected to showcase at least two modular accessories (and perhaps as many as four) as part of an initiative called "G5 and Friends." An accessory called the LG Cam Plus is said to afford physical hardware buttons for commonly used camera functions such as the shutter release, flash, zoom and so on. More importantly, the module will reportedly include an 1,100mAh battery of its own to supplement the handsets internal (replaceable) pack.

Another module called the LG Hi-Fi Plus with B&O Play is rumored to be a digital to analog converter. Built in collaboration with Bang & Olufsen, the DAC module will also apparently be able to enhance audio from outsides sources like another Android device or even a PC.

The other two modules rumored to be on display this weekend include a spherical camera called the LG 360 Cam and a smartphone-controlled drone known as the Rolling Bot.

TechSpot has a team descending on Barcelona as we speak to cover Mobile World Congress 2016 so be sure to check back here beginning Sunday for the latest unveilings and related announcements.

Lead image courtesy Evan Blass