Mobile data
Mobile data is the data included when you sign up for a bring your own phone plan, a prepaid plan, or mobile internet. You need a certain amount of mobile data to browse the web and use services or features that require an internet connection when you aren’t at home or in the office.
Why do you need mobile data?
Mobile data allows you to access the internet whenever you are outside of a Wi-Fi zone. Exactly how much data you need depends on your habits – how often you’re online and what you do while you’re there.
In today’s market, almost all BYOP plans include a data bucket. Even if the amount is small, it ensures you can stay connected. With a prepaid plan, you have more flexibility and can choose to add data only when you need it, or even opt for a talk-and-text-only plan with no data at all.
Info! Mobile data is measured in gigabytes (GB). In 2026, the primary difference between most carrier plans is the amount of 5G or 5G+ high-speed data included. Generally, the more GB you choose, the higher the monthly price. In addition to the data bucket, many Canadian carriers now offer “speed tiers”, which means your monthly price may also depend on whether you want standard 5G speeds or the maximum 5G+ capabilities for high-definition streaming and gaming.
Having at least some data is essential for modern smartphones. It allows your device to perform critical security updates in the background and ensures you can use GPS to look up addresses or find contact information on the go.
What is the difference between mobile data and Wi-Fi?
Both mobile data and Wi-Fi get you online, but they use different technologies.
- Mobile data: Your device connects directly to a carrier’s network (like a 4G, 5G, or 5G+ network). It works anywhere there is network coverage, and usage counts against your monthly data allowance.
- Wi-Fi: Your device receives a signal from a local router. Most Canadians pay for a home internet subscription and use a router to create a private Wi-Fi network. When you use Wi-Fi, you are using that home connection, meaning you aren’t dipping into the data included in your BYOP or prepaid plan.
How to check your mobile data usage
It is a good idea to monitor your usage to avoid overages or reduced speeds. This is especially helpful if you are considering switching to a different plan or provider and need to know how much data you actually consume.
In your phone’s settings
If you have a BYOP or prepaid plan, you can check your usage directly on your device.
- On iPhone: Go to Settings > Cellular to see your total data usage. You can also see exactly how much data each individual app is using.
- On Android: Go to Settings > Network & internet > SIMs > Data usage. You can view your total consumption for a specific billing cycle and see a breakdown by app.
Note that the steps may vary slightly between different Android brands.
Via your provider’s website or app
Most Canadian carriers allow you to log in to your account online or through a dedicated app. This is the most accurate way to see how much of your monthly “high-speed” bucket remains before your speeds are throttled or overage charges apply.
Via text message
Many providers allow you to check your balance by sending a quick text command to a specific shortcode. You will receive an automated reply with your remaining data balance.
Should mobile data be on or off?
If you are on a small data plan and want to avoid extra costs, it’s smart to toggle mobile data off when you aren’t using it. Some apps can “leak” data in the background even when you aren’t actively using your phone.
However, if you have a large data plan or an “unlimited” plan (where your speeds are throttled after you reach your high-speed limit, but you won’t face overage charges), you can generally leave it on all the time for convenience.
- To turn off data on iPhone: Go to Settings > Cellular > Cellular Data and toggle the switch.
- To turn off data on Android: Go to Settings > Network & internet > SIMs and toggle Mobile data to off.
What is data carryover?
Data carryover (sometimes referred to as data rollover) means you can keep your unused data from the previous month and use it later. While many plans from the major carriers offer unlimited data with throttled speeds rather than carryover, several regional providers and prepaid brands offer features that let you keep your unused GBs for a set period.
If you consistently find yourself with leftover data every month, you might be paying for more than you need. In that case, switching to a plan with a smaller data bucket could save you a significant amount of money.
What to do if your mobile data isn’t working
If your data stops working, it is usually due to one of these common issues:
- You may have accidentally toggled mobile data off: Check your settings to ensure it’s enabled.
- You have no network coverage: Canada is vast, and coverage can be spotty in remote or underground areas. Check your signal bars; if you’re in a “dead zone,” you’ll need to move to a different location.
- There are service outages: Occasionally, carriers experience temporary disruptions. Check your provider’s social media or website for network status updates.
- The data limit is reached: If you’ve used up your high-speed allotment, your data might be paused or significantly slowed down. Check your usage via your provider’s app.
Using mobile data abroad
When you travel outside of Canada, your phone can no longer connect directly to your home provider’s towers. To keep you connected, your device uses international roaming, which allows it to “borrow” a local network in the country you are visiting. While this is a seamless way to stay online, it usually requires a specific travel plan or a daily roaming fee. Most Canadian carriers offer daily roaming passes (like “Roam Like Home” or similar features) that let you use your existing data bucket for a flat daily rate.
However, by 2026, many mid-to-high tier plans now include “Canada-US” or “Canada-US-Mexico” coverage as a standard part of the subscription, allowing you to use your data in those countries just like you would at home.
Tip! Many Canadians now opt for travel eSIMs. Since most modern devices support dual-SIM functionality, you can download a digital SIM card to access local data rates in your destination country without removing your Canadian SIM.
Always check your roaming rates before you travel. If you don’t have a travel add-on or a cross-border plan, roaming charges can add up very quickly. Be sure to check if your provider has specific limits on how much of your data can be used while roaming.
