Mobile phone commercially available handheld mobile phone. From 1983 to 2014, worldwide mobile phone subscriptions grew to over seven billion—enough to provide one for every person on Earth. In first quarter of 2016, the top smartphone developers worldwide were Samsung, Apple, and Huawei, with smartphone sales represented 78 percent of total mobile phone sales. For feature phones (or "dumbphones") , the largest were Samsung, Nokia, and Alcatel. A handheld mobile radio telephone service was envisioned in the early stages of radio engineering. In 1917, Finnish inventor Eric Tigerstedt filed a patent for a "pocket-size folding telephone with a very thin carbon microphone".
Mobile phone recycling also been extracted. A report released in early 2014 found that when it comes to mobile phone recycling programs, cash is the single biggest incentive for consumers in recycling phones. As more people became aware of the monetary value of their old cell phones and other small electronics such as tablets, comparison websites showing users the latest buying prices grew in popularity. The first cell phone buying comparison website to launch in North America was SellMyCellPhones.com which launched in 2010. The first cell phone recycling company in the U.S. was ReCellular, which was founded in 1991 when there were only