Mobile World Congress (MWC) is a massive technology event that takes place every year in the city of Barcelona. Thousands of people go there to take a glimpse at the latest and greatest tech being launched, and we attended to get some hands-on time with some of the best out there. Some of these are concepts that you can’t buy, some of these are products that you can buy today, but all of them deserve a place on our list of the best products available at the show this year.