Coolest tech to see at Barcelona's Mobile World Congress
![Coolest tech to see at Barcelona's Mobile World Congress](/media/k2/items/cache/61aca5ef49bff2f9be565298d6b5c855_L.jpg)
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Chief Marketing Officer of Samsung Electronics Europe David Lowes presents the tablet Samsung Galaxy Book during a news conference Feb. 26, 2017, in Barcelona on the eve of the World Mobile Congress official opening. Phone makers will seek to seduce new buyers with even smarter Internet-connected watches and other wireless gadgets as they wrestle for dominance at the world's biggest mobile fair. Lluis Gene, AFP/Getty Images