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The first handheld mobile phone was demonstrated by Martin Cooper of Motorola in New York City on 3 April 1973, using a handset weighing c. 2 kilograms (4.4 lbs). [2] In 1979, Nippon Telegraph and Telephone (NTT) launched the world's first cellular network in Japan. [3] In 1983, the DynaTAC 8000x was the first commercially available handheld ...
This is the list of mobile phone brands sorted by the country from which the brands originate. The number of mobile phone brands peaked to more than 750 in 2017 before declining to nearly 250 brands in 2023.
On business cards and other contact information, telephone numbers might be listed as "HP" or "hunting". "HP" is an abbreviation for "hand phone" or mobile phone and is pronounced "hah péh". Hand phones might also be referred to as pon-sel (short form of telepon seluler) or telepon genggam ("hold-in-the-hand telephone").
Sony had not used OLED panels in their smartphones previously, however the XZ3 is the first Sony smartphone to come with an OLED panel. It is a 6 inches (150 mm) QHD+ (2880x1440) display, with a 2:1 aspect ratio (marketed as 18:9).
The following is a comparison of high-definition smartphone displays, containing information about their specific screen technology, resolution, size and pixel density.It is divided into three categories, containing smartphones with 720p, 1080p and 1440p displays.
Samsung SCH-B710 [3] 2007-07-11 South Korea Parallax barrier Yes No Hitachi Wooo Ketai H001 [4] 2009-02-06 Japan Cell-matrix parallax barrier No No Samsung AMOLED 3D SCH-W960 [5] 2010-05-03 South Korea Parallax barrier No No Motorola MING MT810 [6] 2010-08-30 China Parallax barrier No No Sharp LYNX SH-03C [7] 2010-12-03 Japan Striped parallax ...
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The 50/30/20 budget is a simple plan that sorts personal expenses into three categories: "needs" (basic necessities), "wants", and savings. 50% of one's net income then goes towards needs, 30% towards wants, and 20% towards savings. [4]