India has over 1.2 bn mobile phone users: I&B ministry | Mint
African smartphone users see a diverse mobile experience across the continent | Opensignal
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Five billion mobile phone users in 2017: study | HT Tech
A surprising number of smartphone users aren't that smart about security | World Economic Forum
Click here now! Smartphones may be making us more impulsive | CNN
Fascinating Facts about Cellphone and Smartphone Usage | St. Louis Fed
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Maps and Navigation Apps Are Still Essential to Smartphone Experience, and User Penetration Continues to Grow - Insider Intelligence Trends, Forecasts & Statistics