This is often paraphrased simply as the balance of evidence showing no harm to humans from mobile phones, although a significant number of individual studies do suggest such a relationship, or are inconclusive. Other digital wireless systems , such as data communication networks, produce similar radiation. On 31 May , the World Health Organization stated that mobile phone use may possibly represent a long-term health risk,   classifying mobile phone radiation as "possibly carcinogenic to humans" after a team of scientists reviewed studies on mobile phone safety. Some recent [ when? Lennart Hardell and other authors of a meta-analysis of 11 studies from peer-reviewed journals concluded that cell phone usage for at least ten years "approximately doubles the risk of being diagnosed with a brain tumor on the same 'ipsilateral' side of the head as that preferred for cell phone use".
In May , preliminary findings of a long-term study by the U.
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A study by the London School of Economics found that banning mobile phones in schools could increase pupils' academic performance, providing benefits equal to one extra week of schooling per year. The average user replaces their mobile phone every 11 to 18 months,  and the discarded phones then contribute to electronic waste. Mobile phone manufacturers within Europe are subject to the WEEE directive , and Australia has introduced a mobile phone recycling scheme.
Apple Inc. According to the Federal Communications Commission , one out of three robberies involve the theft of a cellular phone. All mobile phones have a unique identifier called IMEI. Anyone can report their phone as lost or stolen with their Telecom Carrier, and the IMEI would be blacklisted with a central registry.
There are, however, a number of ways to circumvent a blacklist. One method is to send the phone to a country where the telecom carriers are not required to implement the blacklisting and sell it there,  another involves altering the phone's IMEI number. Demand for metals used in mobile phones and other electronics fuelled the Second Congo War , which claimed almost 5. The profits from the minerals finance the bloodiest conflict since the second world war; the war has lasted nearly 20 years and has recently flared up again.
For the last 15 years, the Democratic Republic of the Congo has been a major source of natural resources for the mobile phone industry. From Wikipedia, the free encyclopedia. For the film, see Cell Phone film. For the film, see Handphone film. For the modern mobile phone, see Smartphone. Portable device to make telephone calls using a radio link.
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Main article: History of mobile phones. Mobile subscriptions per people . Main article: Smartphone. Main article: Feature phone. Main articles: Cellular network and WiFi. Main article: Mobile phone features. Main article: Display device. Main article: Mobile operating system. This section needs expansion. You can help by adding to it. October Main article: Mobile app. Main article: List of digital distribution platforms for mobile devices.
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Last update: Statistics until mid is needed for some parts of this section. August See also: List of best-selling mobile phones and List of mobile phone makers by country. Main article: Mobile phone operator. Main articles: Mobile banking and Mobile payment.
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See also: Branchless banking and Contactless payment. See also: Cellphone surveillance and Mobile phone tracking. Main articles: Mobile phones and driving safety and Texting while driving. Main article: Mobile phone radiation and health. See also: Nomophobia and Mobile phone overuse. See also: Mobile phone use in schools. See also: Mobile phone recycling.
Main article: Conflict minerals. Telecommunication portal Internet portal. Almost 40 percent of the world's population — 2. The developing world is home to about million female Internet users and million male Internet users. The developed world is home to about million female Internet users and million male Internet users. Retrieved 21 May Retrieved 7 September Archived from the original on 22 October Retrieved 29 July Jayant World Scientific.
CRC Press. Archived from the original on 4 March Institute of Electrical and Electronics Engineers. Purdue School of Engineering. Retrieved 23 April Our World in Data. Retrieved 12 October Public Radio International. Arutz Sheva. CPU World Glossary. CPU World.
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Retrieved 1 January Retrieved 3 April The Verge. Vox Media. Gawker Media. Retrieved 8 June Apple Support. We Asked An Expert". Digital Trends. Archived from the original on 8 May Retrieved 6 May Retrieved 24 February Egham, UK: Strategy Analytics.
Retrieved 20 March Retrieved 11 July Retrieved 3 August China Mobile. BBC News. Retrieved 4 November The Press-Enterprise.