The Vodafone logo is displayed at the Mobile World Congress (MWC) in Barcelona on February 25, 2019. - Phone makers will focus on foldable screens and the introduction of blazing fast 5G wireless networks at the world's biggest mobile fair starting February 25 in Spain as they try to reverse a decline in sales of smartphones. (Photo by GABRIEL BOUYS / AFP) (Photo credit should read GABRIEL BOUYS/AFP/Getty Images)
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