How to check mobile data usage on iPhone?
You can check mobile data usage on iPhone in Cellular settings, where Apple shows app-by-app usage for the current period and extra system service details.
Why It Matters
- It helps you find which apps are using the most data.
- You can review roaming and system service usage separately.
- It is the fastest way to spot unexpected background usage.
What to Do
- Open Settings > Cellular or Mobile Data.
- Scroll down to review usage by app.
- Tap System Services if you want to see data used by Apple system functions.
- Use Reset Statistics if you want to measure usage over a fresh billing cycle.
Pro Tip
Reset your statistics on the first day of your billing cycle. That makes your iPhone data numbers much easier to compare with your carrier bill.
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