This year's Mobile World Congress in Barcelona brought dazzling prototypes and big promises. These are CNET's top picks from the show.

Some phone upgrades can cost over $1,000. CNET found that only 29% of US adults are willing to spend that much.

After hands-on time with the hottest mobile tech in Barcelona, our experts select the next-gen foldables, wearables, chips, ...

After digging through the biggest announcements and most interesting prototypes, we’ve picked the products and innovations ...