What’s the Difference Between Wi‑Fi Data and Cellular Data? (2024)

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Feb 14, 2023

Wi-Fi and cellular data coverage work together to help you get the most out of your cell phone plan. But what are the differences between the 2?

A data plan and Wi-Fi network basically let you do the same thing: use the Internet wirelessly. Some devices are built for Wi-Fi use only while others, such as 4G LTE smartphones and the Samsung Galaxy Tab S6, have Wi-Fi, 3G and 4G LTE access. Depending on how much you use the Internet and where, a data-enabled device gives you the best of both worlds—fast, secure access to the information you need on the go and some flexibility on overall data consumption.

Wi-Fi connects to a router, cellular data does not.

Wi-Fi is basically just another frequency of radio we use to wirelessly connect devices. To use it for Internet access, your tablet or smartphone connects (over Wi-Fi) to a wireless router—like the one you access at home or at your favorite coffee shop. (The router itself typically plugs into the wall to connect to an Internet service provider.) Use your device’s Settings menu to access available Wi-Fi networks. Choose a network from those listed, enter the password (if required), and you’re good to go. You can set up your device so that it automatically recognizes your home Wi-Fi network or other frequently used networks, like at work or school, or you can manually access Wi-Fi when it’s available.

What’s the Difference Between Wi‑Fi Data and Cellular Data? (4)

When you use data through a Verizon Wireless plan, you don’t need a router or a Wi-Fi connection. You can access movies, games, email, websites and more on your phone or tablet using Verizon’s network so long as you’re in the coverage area.

Wi-Fi has a limited range, cellular data does not.

Wi-Fi only works within the range of your router. With your Verizon Wireless plan, you can access the Internet on your phone or tablet even when you’re out of Wi-Fi range. And those fast 4G LTE data speeds now cover more than 98 percent of the US population. So, when you’re on the road, in a Wi-Fi–challenged hotel room or waiting for the train, your data plan powers that map app on your smartphone. What a lifesaver.

Use your data plan for a secure connection.

If you’re using Wi-Fi at home, your connection’s security can be pretty good, depending on how locked down your own network is—which varies based on your router model and its settings. When using Wi-Fi to get Internet access in your favorite coffee shop or in your hotel room while traveling, though, there’s no guarantee you’ll get a secure connection.

What’s the Difference Between Wi‑Fi Data and Cellular Data? (5)

If you need Internet access for another device, such as a laptop, and you’re not sure how secure the local Wi-Fi network is, you can take advantage of Verizon’s secure network using your smartphone or tablet. Activate Verizon’s mobile hotspot function in your phone’s settings, and it becomes a Wi-Fi router. When you use your device as a mobile hotspot, all the other devices accessing the Internet through it use your mobile data plan.

When you’re streaming lots of movies and music to your tablet or engaging in other data-heavy activities, it makes sense to use Wi-Fi, so long as it’s available and trustworthy. But if you’re checking work email or balancing your checkbook on the road, consider turning off Wi-Fi and using your data plan to protect your privacy.

The Future is 5G.

Cellular speeds don’t stop at 4G LTE. Verizon is the leader in 5G and has already begun deploying its network around the world. This lightning-fast network unlocks a number of new possibilities for mobile networks - including some ultra-fast 5G phones. Be the first to get your hands on 5G and take advantage of the most awarded network.

Know the difference.

Learning the difference between Wi-Fi data and cellular data helps you better manage your overall data usage. Plus, when you’re making your next tablet purchase, you’ll have a keener understanding of which version you need—Wi-Fi or Wi-Fi + Cellular Data.

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Other related terms: Cellular data, mobile data, wifi vs cellular, wifi data, data on a cell phone, cellular connection

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Reviewed by the Verizon Editorial Team. This content is provided for information purposes only. All information included herein is subject to change without notice. Verizon is not responsible for any direct or indirect damages, arising from or related to use or reliance of the above content.

What’s the Difference Between Wi‑Fi Data and Cellular Data? (2024)

FAQs

What’s the Difference Between Wi‑Fi Data and Cellular Data? ›

Wi-Fi connects to a router, cellular data does not.

What is the difference between Wi-Fi data and cellular data? ›

WiFi data can transmit the same kind of information as cellular data. The main difference between WiFi and cellular data is that WiFi passes through a local access point, such as a router in your home, office, coffee shop, or library and mobile data doesn't.

Do I need cellular data if I have Wi-Fi? ›

Contrast this with Wi-Fi—when you're on Wi-Fi you don't use cell data at all. So wherever possible, try to stay connected to a Wi-Fi signal. When that's not possible, try to limit what you do on your mobile.

Should I turn off cellular data when using Wi-Fi? ›

There's no need to turn off cellular data when you're on a Wi-Fi network. Even if you leave it set to 'on,' your phone will connect to the Internet via Wi-Fi. But once you cross out of range, your phone will switch back to data if it's enabled.

Why is my phone using cellular data on Wi-Fi? ›

If activated, Wi-Fi Assist automatically switches to use cellular data when Wi-Fi connectivity is poor. Wi-Fi Assist is on by default. This might result in additional cellular data use, which could incur additional charges depending on your data plan. You can turn off Wi-Fi Assist in Settings.

What is the difference between Wi-Fi only and cellular? ›

A Wi-Fi connection is commonly sustained by a router plugged into an ethernet cable, but can be more complex. Cellular data is a connection provided via cell towers, which is facilitated by your phone's service provider.

Is it better to have cellular data on? ›

Using cellular data consumes data from your mobile data plan, which may lead to additional charges. If you have a limited data plan or want to avoid exceeding your data allowance, turning cellular data off when you're not actively using it can help conserve your data and prevent unexpected charges.

Why am I being charged for data when using Wi-Fi? ›

Some third-party apps are designed to consume mobile data even with Wi-Fi connected. Some third-party apps, such as online banking apps, may still consume mobile data even if they are connected to a Wi-Fi network.

What uses the most data on your phone? ›

Activities that use a lot of data
  • High definition video streaming (900MB per hour)
  • Video conferencing, like FaceTime® and Skype® (480MB per hour)
  • Standard-definition video streaming (240MB per hour)
  • Online interactive gaming (60MB per hour)
  • Streaming music (30MB per hour)
  • Downloading movies and large data files.
Dec 7, 2022

What happens if I keep my mobile data and Wi-Fi both on at a time on my iPhone? ›

The biggie: WiFi turns off when the phone goes to sleep to preserve battery (WiFi uses power continuously, whether data are being exchanged or not). So any apps that use background data will switch to cellular if the phone is asleep.

What happens if I turn cellular data off? ›

If Cellular Data is off, all data services—including email, web browsing, and push notifications—use Wi-Fi only. If Cellular Data is on, carrier charges may apply. For example, using certain features and services that transfer data, such as Siri and Messages, could result in charges to your data plan.

Is it okay to leave mobile data on all the time? ›

Leaving mobile data on all the time can be the best option for you if you require constant internet access and don't mind battery waste and security hazards. But it could be wiser to turn off mobile data when not in use if you're concerned about data usage, battery life, or security.

Should I leave WiFi calling on all the time? ›

Should You Keep WiFi Calling on All the Time? To make sure you get the best possible signal during mobile phone calls, keeping WiFi calling on is a good idea. If you are using a public WiFi network (at a cafe or hotel, for instance), the network's signal strength might not be as strong as at your home.

What happens if Wi-Fi and cellular are both on? ›

Having WiFi and data on at the same time is pretty much OK, as it's usually not possible for your device to be using both at the same time unless it has 2 network cards. However, it does mean your device will switch to mobile data when you leave an area with WiFi access.

Am I using data if I am on Wi-Fi? ›

The only time you might be using data when you're connected to Wi-Fi is if you have the “Wi-Fi Assist” feature turned on. Basically, if your Wi-Fi signal is weak, Wi-Fi Assist will automatically prompt your phone to use cellular data to help speed up your internet connection.

Why use Wi-Fi instead of cellular? ›

In general, connecting to WiFi tends to be more energy-efficient than using mobile data, because your phone is no longer forced to constantly scan for opportunities to connect and maintain steady data flow. When your phone is connected to WiFi, it can enter a low-power state more frequently, conserving battery life.

Is cellular better than Wi-Fi? ›

The technology that makes up cellular networks is more complex than WiFi networks, but it also allows for better range, better reliability, and can support a large number of devices doing data-heavy tasks at once.

Is cellular the same as mobile data? ›

Mobile data, sometimes referred to as cellular data, is the internet connectivity delivered to your mobile devices wirelessly. If you're using the internet on your phone, and it's not connected to Wi-Fi, you're using mobile data.

Is cellular data safer than Wi-Fi? ›

Why Is Cellular Data More Secure? Connecting to a cellular network is definitely safer than using Wi-Fi. Most Wi-Fi hotspots aren't secure because the data sent over the internet isn't encrypted. When you use a secured Wi-Fi, you can encrypt your data, but it's still less reliable and automatic than cellular signal.

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