site.btaOver 40% of Bulgarians Use Mobile Devices for Over 4 Hours a Day - Survey
A child holds an Apple iPhone 6S at an Apple store on Chicago's Magnificent Mile in Chicago on Sept. 25, 2015. (AP Photo/Kiichiro Sato, File)
Over 40% of Bulgarians use mobile devices for more than 4 hours a day, and for half of them this time even exceeds 6 hours, according to a national survey conducted by the Arbitrage Research agency on behalf of the mobile operator Yettel among 600
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