Mobile phone Wikipedia

Feature phones typically provide voice calling and text messaging functionality, in addition to basic multimedia and Internet capabilities, and other services offered by the user’s wireless service provider. Feature phone is a term typically used as a retronym to describe mobile phones which are limited in capabilities in contrast to a modern smartphone. The International Telecommunication Union measures those with Internet connection, which it calls Active Mobile-Broadband subscriptions (which includes tablets, etc.). The term “5G” was originally used in research papers and projects to denote the next major phase in mobile telecommunication standards beyond the 4G/IMT-Advanced standards. The first publicly available LTE service was launched in Scandinavia by TeliaSonera in 2009. By 2009, it had become clear that, at some point, 3G networks would be overwhelmed by the growth of bandwidth-intensive applications, such as streaming media.
In the earliest mobile phone systems by contrast, all control was done manually; the customer would search for an unoccupied channel and speak to a mobile operator to request connection of a call to a landline number or another mobile. A cellular network mobile phone system gets its name from dividing the service area into many small cells, each with a base station with (for example) a useful range on the order of a kilometer (mile). As well, technical limitations such as antenna efficiency and receiver design limit the range of frequencies a customer unit could use. The critical advantage that modern cellular networks have over predecessor systems is the concept of frequency reuse allowing many simultaneous telephone conversations in a given service area. Feature phones and basic mobile phones tend to use a proprietary, custom-designed software and user interface.
3G is able to provide mobile broadband access of several Mbit/s to smartphones and mobile modems in laptop computers. These first-generation (1G) systems could support far more simultaneous calls but still used analog cellular technology. Early predecessors of cellular phones included analog radio communications from ships and trains. “Mobile phone” is the most common English-language term, while the term “cell phone” is in more common use in North America – both are in essence shorter versions of “mobile telephone” and “cellular telephone”, respectively.

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• “Mobile phone” is the most common English-language term, while the term “cell phone” is in more common use in North America – both are in essence shorter versions of “mobile telephone” and “cellular telephone”, respectively.
• Early mobile phones required vehicle installation due to their size and power needs.
• The exact number of cycles depends on factors such as charging habits, operating temperature, and battery management systems.
• The dataset contains information on 22 dichotomous, continuous or categorical variables including, for example, activities regulated (e.g., texting versus talking, hands-free versus handheld), targeted populations, and exemptions.
• The term “5G” was originally used in research papers and projects to denote the next major phase in mobile telecommunication standards beyond the 4G/IMT-Advanced standards.
• Due to the increasing complexity of mobile phones, they are often more like mobile computers in their available uses.

Handsets with more advanced computing ability through the use of native software applications are known as smartphones. Low-end mobile phones are often referred to as feature phones and offer basic telephony. Additionally, short-range Wi-Fi infrastructure is often used by smartphones as much as possible as it offloads traffic from cell networks on to local area networks. The automation systems can control the “hand off” of a customer handset moving between one cell and another so that a call in progress continues without interruption, changing channels if required. In developed countries, smartphones have largely replaced earlier mobile technologies, while in developing regions, they account for around 50% of all mobile phone usage. This ensures it can be applied to mobile Internet access, VoIP, video calls, and sending large e-mail messages, as well as watching videos, typically in standard-definition quality.

• The cell towers are usually interconnected to each other and the phone network and the internet by wired connections.
• There are a huge variety of apps, including video games, music products and business tools.
• Japan prohibits all mobile phone use while driving, including use of hands-free devices.
• Mobile phone use while driving, including talking on the phone, texting, or operating other phone features, is common but controversial.
• The race to create truly portable telephone devices began after World War II, with developments taking place in many countries.
• Up until that point, smartphone application distribution depended on third-party sources providing applications for multiple platforms, such as GetJar, Handango, Handmark, and PocketGear.
• Mobile phone technology has progressed significantly since its origins, evolving from large car-mounted systems to compact, handheld devices.

Some audio-quality enhancing features, such as Voice over LTE and HD Voice, have appeared and are often available on newer smartphones. Liquid-crystal displays are the most common; others are IPS, LED, OLED, and AMOLED displays. Screen sizes are often measured in diagonal inches or millimeters; feature phones generally have screen sizes below 90 millimetres (3.5 in). Depending on the device’s type and design, the screen fills most or nearly all of the space on a device’s front surface. Mobile processors commonly use heterogeneous multicore architectures, combining cores with different performance and power characteristics so that computational workloads can be distributed according to their processing requirements and energy constraints. With smartphones, NAND flash memory was adopted as it has larger storage capacities and lower costs, but causes longer boot times because instructions cannot be executed from it directly, and must be copied to RAM memory first before execution.

Software

Some mobile phones can make mobile payments via direct mobile billing schemes, or through contactless payments if the phone and the point of sale support near field communication (NFC). Eventually, the idea spread and in 1999, the Philippines launched the country’s first commercial mobile payments systems with mobile operators Globe and Smart.citation needed Recently, unique content for mobile phones has been emerging, from ringtones and ringback tones to mobisodes, video content that has been produced exclusively for mobile phones.citation needed

Software

A common data application on mobile phones is Short Message Service (SMS) text messaging. Feature phones have basic software platforms whilst smartphones have a fully-featured operating system (commonly abbreviated to an OS), with the two most-used platforms being Android and iOS. The exact number of cycles depends on factors such as charging habits, operating temperature, and battery management systems. The small speakers can also be used to listen to digital audio files of music or speech or watch videos with an audio component, without holding the phone close to the ear. Because of these problems, the performance of mobile phone CPUs is often more appropriately given by scores derived from various standardized tests to measure the real effective performance in commonly used applications.

The growth in popularity has been rapid in some places; for cash lounge casino example, in the UK, the total number of mobile phones overtook the number of houses in 1999. Mobile phones are considered an important human invention as they have been one of the most widely used and sold pieces of consumer technology. For feature phones as of 2016update, the top-selling brands were Samsung, Nokia and Alcatel. In 1979, Nippon Telegraph and Telephone (NTT) launched the world’s first cellular network in Japan.

Battery

The introduction of Apple’s App Store for the iPhone and iPod Touch in July 2008 popularized manufacturer-hosted online distribution for third-party applications (software and computer programs) focused on a single platform. A mobile app is a computer program designed to run on a mobile device, such as a smartphone. Of the two, Android has been the best-selling system worldwide on smartphones since 2011, and as of March 2025, Android had 71.9% of the overall market share, while iOS had 27.7%. SIM and R-UIM cards may be mixed together to allow both GSM and CDMA networks to be accessed.
A hybrid mobile phone can hold up to four SIM cards, with a phone having a different device identifier for each SIM Card. The SIM card allows users to change phones by simply removing the SIM card from one mobile phone and inserting it into another mobile phone or broadband telephony device, provided that this is not prevented by a SIM lock. The SIM card is approximately the size of a small postage stamp and is usually placed underneath the battery in the rear of the unit. Most modern mobile phones use lithium-ion (Li-ion) batteries, which are designed to endure between 500 and 2,500 charge cycles. The typical lifespan of a mobile phone battery is approximately two to three years, although this varies based on usage patterns, environmental conditions, and overall care.