What is Wi-Fi? Learn the basics of this service

Nowadays, we hear the term “Wi-Fi” thrown around as if it’s been around forever. But what is Wi-Fi anyway? How does it differ from the internet? What part does it play in getting you connected? We’ll outline the basics you need to know and give some tips on how to maximize your home Wi-Fi performance.

What is Wi-Fi?

Many think Wi-Fi and the internet are the same thing, but they are actually quite different. As we mentioned above, Wi-Fi enables you to connect your devices to the internet without the use of cables, allowing you to use your smartphone, laptop, tablet, etc., freely without connecting it directly to your modem. The internet, however, is the larger global network linking all computers and databases.

You don’t technically need Wi-Fi to use the internet, but it is widely accepted as the norm since it is much more convenient.

What is a Wi-Fi network?

A Wi-Fi network is a wireless internet connection established by your router and shared across devices in a home or business. The network allows you to access your internet connection on multiple devices in any location throughout your coverage area. 

How does Wi-Fi work?

To put it simply, Wi-Fi works by using radio frequencies to communicate back and forth with your devices. Your internet-connected devices each have wireless adaptors that translate necessary data into a radio signal. That signal is transmitted using an antenna. Your wireless router receives that signal and translates to the internet.

Your router will also receive information from the internet (movies, music, files) and communicate it as a radio signal back to your devices. Wi-Fi transmits data on the frequencies of 2.4 GHz and 5 GHz — you’ve probably heard of these numbers as channels on your Wi-Fi network. These frequencies are much higher than the ones used by cellphones in order to carry more data. 

As far as how fast that data can be transferred, Wi-Fi technology uses 802.11 networking standards, which come in varying speeds and price points. The first version of the 802.11 protocol was released in 1997 and reached link speeds up to 2 Mbps. The newest standard, 802.11ax, or Wi-Fi 6, was released in 2019 and is faster than previous iterations, prone to less interference and maxes out at 9.6 Gbps. An improved version of 802.11ax known as Wi-Fi 6E was released in 2021 and operates on 6 GHz frequencies.

What can be done with Wi-Fi?

Wi-Fi isn’t just about accessing the web. The convenience and connectivity of Wi-Fi can also make everyday life much easier. With Wi-Fi you can:

• Sync smart home devices and control from a central hub like your smartphone
• Share files with nearby devices
• Wirelessly stream audio and movies from one device to another
• Wirelessly transfer photos from your camera to your PC
• Sync media libraries without a USB
• Improve home security with smart locks, monitoring systems and cameras
• Connect to a Wi-Fi hotspot, which allows you to connect to the internet on the go and is usually built into your mobile device

Learn more about the difference between Wi-Fi and internet.

How to get home Wi-Fi

If you’re like most Americans, you’ve got at least eight devices that use your home internet connection. But if you’re looking to create that seamless experience that Wi-Fi allows, you’re going to need to take a few steps to make sure your home is ready.

Choose an internet service provider

Start by shopping the available internet providers in your area. Determine your monthly budget, what internet connection types are available and most compatible with your internet activities and what speeds are needed to support all the users on your network.

Get a wireless router and modem

Most providers allow you to bring the equipment of your choice. However, some may require you to rent a specific set of equipment directly from them for the best quality. If you’re able, do your research on routers specifically in order to make sure your device can handle the speeds and amount of devices you’re looking to connect. 

Consider a Wi-Fi strengthener

Once you’ve established a connection, you need to make sure that your Wi-Fi coverage is nothing short of spectacular, especially if you’re living in a multi-floor household. Look into a Wi-Fi extender, repeater or booster to push your signal to those hard-to-reach corners and devices.

Start your journey to home Wi-Fi sooner than later. Compare major internet service providers, pricing, speed ranges and more.

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*Price per month plus taxes for length of contract. Additional fees and terms may apply. Pricing varies by location and availability. All prices subject to change at any time. Updated as of 07/03/25.
**Limited time offer; subject to change; new residential customers only (no Spectrum services within past 30 days) and in good standing with Spectrum. Taxes and fees extra in select states. SPECTRUM INTERNET: Standard rates apply after promo period. Additional charge for installation. Speeds based on wired connection. Actual speeds (including wireless) vary and are not guaranteed. Gig capable modem required for Gig speed. For a list of Gig capable modems, visit Spectrum.net/modem. Services subject to all applicable service terms and conditions, subject to change. Not available in all areas. Restrictions apply. ©2024 Charter Communications, all rights reserved.
†Verizon mobile plan, Auto Pay & paper-free billing required. Add’l. cost without mobile plan. Subj. to credit approval & may require a deposit. Fios avail. in select areas. Wired speeds advertised. Wireless speeds may vary due to device limits, multiple users, network & other factors. See Verizon.com/yourspeed for more info. © 2025 Verizon.

How to secure your Wi-Fi connection

Once you’ve established your Wi-Fi connection and synced your devices, you’ll want to take some extra steps to be sure your information and your household is secure. A great Wi-Fi password is one thing, but cybercriminals have ways around the most creative security keyword.

Ways to keep your network and devices away from prying eyes

1. Go for strong encryption: Wi-Fi Protected Access (WPA), WPA2 or WPA3 are the newest standards. Hackers are familiar with older standards of protection like Wired Equivalent Privacy, or WEP, and may break in with ease using the right methods
2. Choose a strong WPA key: Your mother’s maiden name won’t exactly cut it. Pick a lengthy security key with a mixture of random numbers and letters to make your password ironclad
3. Create a guest network: This is a great way to offer your internet connection to guests without accidentally exposing your network to risks. Activate WPA protections on the guest network and provide the password on request. This will allow you to control who accesses the connection and encrypts each user’s data with a “session key,” essentially protecting guests from each other
4. Hide your network name: Changing your service set identifier (SSID) to hidden will prompt users to enter the name and the password to connect instead of displaying it as an option for the world to access
5. Use a VPN: A virtual private network, or VPN, sends your data back and forth via an encrypted connection and blocks your location information. With a good VPN, hackers could access your network and still be blocked from sensitive information

Wi-Fi FAQs

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Camryn Smith

As one of Allconnect’s writers, Camryn Smith helps consumers navigate complex home internet servic… View profile

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