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2. Cellular frequencies - Wikipedia

   en.wikipedia.org/wiki/Cellular_frequencies

   Cellular frequencies. Cellular frequencies are the sets of frequency ranges within the ultra high frequency band that have been assigned for cellular-compatible mobile devices, such as mobile phones, to connect to cellular networks. [1] Most mobile networks worldwide use portions of the radio frequency spectrum, allocated to the mobile service ...

3. Android (operating system) - Wikipedia

   en.wikipedia.org/wiki/Android_(operating_system)

   Android (operating system) Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android is developed by a consortium of developers known as the Open Handset Alliance, though its most widely used ...

4. Mobile phone - Wikipedia

   en.wikipedia.org/wiki/Mobile_phone

   A mobile phone (or cellphone [a]) is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone ( landline phone ). The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which ...

5. List of countries by number of mobile phones in use - Wikipedia

   en.wikipedia.org/wiki/List_of_countries_by...

   This list ranks the countries of the world by the number of mobile phone numbers in use. Note that it is not the number of phone devices that are being given here, but the number of phone numbers in a country. In some countries, one person might have two mobile phones. Also, some mobile phone numbers may be used by machines as a modem (examples ...

6. Samsung Galaxy A54 5G - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_A54_5G

   The Samsung Galaxy A54 5G is a mid-range Android-based smartphone developed and manufactured by Samsung Electronics as a part of its Galaxy A series. This device was announced on March 15, 2023 and was released and available on March 24, 2023. Design Back of the Samsung Galaxy A54 5G

7. Comparison of high-definition smartphone displays - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_high...

   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 "p-display" nomenclature used in this article refers to the number of pixels ...