How to Manage International Roaming and Data Settings on iPhone 7 (iOS 10)

Traveling abroad with your iPhone 7? If you’re not careful, roaming charges can sneak up fast. Whether you want to avoid international fees altogether or use mobile data confidently while overseas, this guide shows you how to manage data roaming and cellular settings on your iPhone 7 running iOS 10.

Turn Off Cellular Data and Roaming to Avoid Charges

If you don’t have an international data plan and want to avoid roaming fees, the safest bet is to turn off both Cellular Data and Data Roaming.

Here’s how:

Go to Settings > Cellular.
Tap Cellular Data Options.
Toggle Cellular Data and Data Roaming to OFF.

Once off, your iPhone will only connect to the internet via Wi-Fi, which is often free and available in hotels, airports, and cafes.

Turn On Data Roaming If You Plan to Use It Abroad

If you’re fine with paying for roaming or have an international plan, enable the correct settings to stay connected overseas:

Open Settings > Cellular.
Turn Cellular Data ON.
Tap Cellular Data Options > Roaming.
Turn on both:
- Voice Roaming
- Data Roaming
(Optional) Turn International CDMA ON or OFF based on your location and network performance.

Tip: If you don’t see the roaming settings, they might already be enabled by default.

Monitor Your Cellular Data Usage While Traveling

Keeping an eye on how much data you’re using can save you from surprise charges.

To check data usage:

Go to Settings > Cellular.
Scroll down to Cellular Data Usage.
Check data used in the Current Period.
View per-app data usage and turn off data access for any app you don’t want using your mobile connection.

View System Services Data Usage

If you’re not sure where your data is going, take a look at System Services:

Go to Settings > Cellular.
Scroll all the way down.
Tap System Services to see how much data services like iMessage, Siri, and push notifications are using.

Track and Reset Data Stats Weekly or Monthly

To reset data statistics so you can track usage for a specific trip:

Go to Settings > Cellular.
Scroll down and tap Reset Statistics.
Confirm to start tracking from zero.

Can’t Connect to Cellular While Abroad? Try This

If your iPhone 7 isn’t connecting to a network in another country:

Make sure Airplane Mode is off.
Go to Settings > Cellular > Cellular Data Options and toggle Data Roaming ON.
Restart your iPhone.

Still not working?

Remove the SIM card using a paperclip or SIM eject tool.
Check it for damage and reinsert it carefully.
Make sure International CDMA is turned OFF (this helps in certain countries).

Settings > Cellular > Cellular Data Options > Roaming > International CDMA

Contact Your Carrier for Help

If you’re still having issues:

Confirm that your iPhone 7 supports the type of network in the country you’re visiting (e.g. CDMA vs GSM).
Make sure your account is in good standing and international services are enabled.

Your carrier can also recommend or activate the best international plan for your destination.