Ina Fried Feb 26
SaveSave story

All the key news from the big cell phone trade show

Samsung unveils the Galaxy S9 ahead of Mobile World Congress in Barcelona
Samsung unveiled the Galaxy S9 a day ahead of Mobile World Congress. (Photo: LLUIS GENE/AFP/Getty Images)

The entire cellular industry, from phone makers to chip providers to carriers, are in Barcelona this week for Mobile World Congress.

Why it matters: The industry is spread out across the globe and Mobile World Congress provides the one big opportunity for the entire industry together. Below are the key announcements so far:.