New Delhi, March 7 -- Just two months ago, the tech world gathered in Las Vegas for Consumer Electronics Show (CES), one of the industry's biggest trade shows. Now it's March, and the action has moved to Mobile World Congress (MWC) in Barcelona, Spain-arguably the most important smartphone showcase of the year.

Where CES is dominated by TVs, computers and the latest developments in AI, MWC has traditionally been the stage for smartphones. That said, the show floor also features tablets, wearables, laptops and a host of devices that don't always make their way to the US market. With brands such as Xiaomi, Oppo, Vivo, Honor and Nothing Technology Limited competing for attention, here are some of the most interesting announcements and conce...