Mobile data. Along with Wi-Fi, it’s what powers so much of what we do on our phones. It allows us to browse the web, stay connected with friends and family, avoid missing crucial work communications, and stream shows. With all that said, many of us don’t know what uses data on a cell phone or how to effectively manage it. That can have consequences, as mismanaging data can lead to slower speeds, unexpected charges, or—worst of all—running out of data when we need it most!

By understanding how mobile data works, you can make smarter choices and ensure you stay connected—without breaking the bank. Below, we’ll cover your burning questions on data usage and provide tips and tricks to reduce unnecessary consumption. And if you’re a medium to heavy data user, we’ll even help you choose the best plans. Let’s get to it.

What Is Data on a Cell Phone?

Before we get to what uses data on a cell phone, it’s important to understand what mobile data is. Mobile data refers to the internet access provided by your cellular network. Unlike Wi-Fi, which connects through a local network, mobile data uses your carrier’s towers to keep you connected on the go. 

When people complain about “data issues,” they’re typically talking about problems like running out, seeing slower speeds, or unexpected charges on their bills. Ouch! These issues can often be traced back to how data is being used, making it important to understand your habits and needs. 

What Uses Data on a Cell Phone?

Many everyday activities use mobile data, but the amount can vary widely. 

• Web browsing: typically, this highly useful task uses relatively low amounts of data. That is, as long as you’re not on data-heavy sites. 
• Social media apps like Instagram, TikTok, and Facebook can consume a significant amount of data due to the images and videos that autoplay.
• Messaging apps take minimal data if the messages are text only. But adding photos, GIFs, and especially videos can increase usage dramatically. 
• Streaming videos and music can be some of the most data-intensive activities. For instance, if you’re watching Netflix in HD, you can gobble up 3GB per hour!
• Background programs: many apps sync, update, or refresh content behind the scenes, even when they’re not in use. Email apps, weather widgets, and cloud backups are common culprits for using data without your awareness.

What Is Data Used for? 

Data enables nearly all the internet-based functionality on your phone. This includes streaming entertainment. For example, watching videos, listening to music or podcasts, checking your socials, or live-streaming content. Data also allows you to find your way. Google Maps, Waze, and other navigation or mapping tools use data to provide real-time directions as well as traffic updates, which can help you arrive at your destination on time.

App downloads and updates also require data. And finally, cloud storage and backups can quietly drain your data as they automatically sync photos or backup your device to cloud storage. 

What Are Data Charges?

Data charges are the fees your carrier applies based on how much data you use. These charges vary depending on your plan. You can use pay-as-you-go, which allows you to pay for each gigabyte of data used. You can also choose an unlimited plan, which offers the freedom to use as much data as you need. However, some plans may throttle (or slow) speeds once you’ve reached a specified limit. Some plans have roaming charges, so if you’re using data when you’re outside of your carrier’s coverage area—such as when traveling internationally—you will need to pay additional fees. 

Understanding your needs and your plan’s specifics can help you avoid overage charges while ensuring you are getting the best value for your buck. 

How to Use Data Effectively

Now that you have a better understanding of what uses data on a cell phone, you can use your data most effectively. For instance, when you are at home, work, or have access to public Wi-Fi, you can switch to using that and save your mobile data for when you’re on the go. 

Another simple way to use data more effectively is by adjusting your app settings to use less data. For example, turn off autoplay on videos when you’re on apps like Facebook, Instagram, or TikTok. Many apps even allow you to restrict or turn off data usage in the background when you’re using data. 

You can also download content when you’re connected to Wi-Fi. You can save music, podcasts, shows, or even full movies and watch them offline to avoid streaming on mobile data. 

Of course, staying informed is the key to better management. Here’s how to check your usage: 

• On iOS: Go to Settings > Cellular > Cellular Data Usage to see current and historical data consumption.
• On Android: Navigate to Settings > Network & Internet > Mobile Network > Data Usage.
• Carrier Apps: Most carriers, like AT&T, provide apps to track data usage and set alerts.
• Third-party Apps: Tools like My Data Manager or GlassWire help monitor and analyze data usage in real time.

By checking your usage regularly, you can spot patterns and adjust habits as needed. For instance, you may cut down on data consumption by:

1. Limiting Background Data: On iOS, go to Settings > Cellular and turn off Background App Refresh. On Android, go to Settings > Data Usage and restrict background data for apps.
2. Optimizing Streaming Settings: Set video resolution to 480p or lower for streaming apps like YouTube or Netflix.
3. Using Data-saving Apps: Apps like Opera Mini compress data to reduce usage.
4. Managing Automatic Updates: Turn off automatic app updates or set them to update only on Wi-Fi.
5. Monitoring Downloads: Avoid downloading large files unless connected to Wi-Fi.

Best Plans for Heavy Data Usage

If you need (or simply use) more data, that’s okay. You can find plans that will give you the data you want while saving you money and frustration (from slowed speeds). Here are some of the best options from AT&T: 

• AT&T Unlimited Premium® Plan: Offers unlimited high-speed data with no throttling, perfect for streaming and gaming.
• AT&T Unlimited Extra® Plan: Includes high-speed data with a lower price point, making it great for moderate-heavy users.
• Family and Bundle Options: AT&T’s family plans let you pool data and save money; bundling with home internet can add even more value.

When choosing a plan, consider your usage habits and prioritize coverage and reliability.

What Uses Data on a Cell Phone Takeaways

Understanding what uses data on a cell phone is essential to managing your usage, avoiding surprise charges, and staying connected without interruptions. By optimizing your settings, tracking your usage, and choosing a plan that fits your needs, you can enjoy seamless connectivity that will save you money.