Definition of Wi-Fi: How is Wi-Fi Useful for Smartphones?

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Wi-Fi, which is a trademark of the Wi-Fi Alliance, is short for wireless fidelity. Wi-Fi’s origins can be traced back to an FCC ruling in 1985.

A device with Wi-Fi can wirelessly connect to the internet when it’s in a range of a wireless router that is hardwired to the internet. Wi-Fi-enabled devices can include:

  1. Mobile phones
  2. Personal computers
  3. Video game consoles
  4. Home appliances (lightbulbs, stereos systems, TVs)

Wi-Fi in Mobile Phones

Some mobile phones are Wi-Fi enabled and some are not. When a mobile phone has embedded Wi-Fi technology, the handset can access the Internet through a nearby wireless router. In doing so, the Wi-Fi-enabled mobile phone circumvents a cell phone carrier’s network and is not charged or counted for data usage. Wi-Fi cannot replace a voice call with mobile phones.

A Wi-Fi-enabled mobile phone can link to a wireless router at your home, a coffee shop, a business or anywhere with an active wireless router. Wi-Fi connections in airports, hotels, bars, coffee shops and more are traditionally called hot spots. Some Wi-Fi hotspots are free and some cost money. To establish a Wi-Fi connection between a mobile phone and a wireless router, it is very likely that login credentials (i.e. a password) will be required.

Mobile phones use different technologies (such as GSM with T-Mobile or CDMA with Sprint). Wi-Fi, on the other hand, is a global standard. Unlike with mobile phones, any Wi-Fi device will work anywhere in the world.

Issues With Wi-Fi

Wi-Fi requires high power consumption when used with mobile devices. As mobile phones perform more and more tasks by the day, Wi-Fi can be an energy drain for such handsets. Wi-Fi networks have a limited range; a traditional wireless router using the 802.11b or 802.11g standard with a regular antenna can work within a range of 120 feet indoors to 300 feet outdoors.



Common Misspellings:

  1. WiFi
  2. WIFI
  3. wifi
  4. Wi-Fi


My home Wi-Fi connection allows me to surf the Web on my Wi-Fi-enabled mobile phone.