True, The first ever public mobile phone call was made in 1973, Martin's phone only made cell calls, Modern smartphones have a touch screen and they can connect to Wi-Fi, You can charge your mobile phone with a portable charger, It is possible to choose a different ringtone for each of your friends, False, People were walking in the street of New York city when they saw a man with a small object in his hands, Martin Cooper talked to Joel S. Engel, who worked for a friend company, Martin's mobile phone was very similar to today's smartphones, The battery of Martin's phone lasted a half an hour, You can't talk for hours on smartphones, You can download apps only for your studies

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