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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.
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 ...