Where is roaming on an iPhone 16?
It's in Settings > Cellular > Cellular Data Options > Data Roaming. There's a toggle switch there: if it's green, your iPhone 16 can use cellular network data outside your country (and your carrier can charge you for it); if it's off, it can't. It's the quickest way to cut costs right now.
Apple calls this feature "Data Roaming" throughout Latin America and also on most Hispanic US carriers, so the menu name doesn't change depending on the country where you bought the phone. What can change is the exact path depending on whether you have a single line, a physical plus an eSIM, or two active eSIMs at the same time, because in those cases iOS asks you to choose the line first before showing you the switch.
If your iPhone 16 has two lines (for example, your local SIM plus a travel eSIM), data roaming is configured per line, not globally. You can leave the travel eSIM with data activated normally — that's what it's for, it doesn't roam because it's a local line in the country you're in — and only turn off roaming for your home line. This is, in fact, the combination that avoids the surprise charge without leaving you without internet, and is the reason why in point 9 we compare this option with leaving carrier roaming activated.
How to turn off data roaming step-by-step
Follow this order: first the step that solves the problem for most iPhone 16s, those with a single active line, and then the variants for dual SIM and double eSIM, which are the ones that cause the most confusion.
- Open Settings.
- Tap "Cellular" (on some models and languages it appears as "Cellular Data"; it's the same menu).
- If you only have one active line, go directly to step 4. If you have more than one line (physical SIM + eSIM, or two eSIMs), tap the line you want to configure, right below "Default Voice Line" or in the list of lines that appears above.
- Tap "Cellular Data Options."
- Tap the "Data Roaming" switch to turn it off. It turns gray when it's deactivated.
- Repeat steps 3 to 5 for each additional line you have, if you want to turn off roaming on all of them.
That's enough to prevent your iPhone 16 from consuming cellular data outside your home country. You don't need to restart your phone or activate airplane mode: the change applies immediately, although in areas with a weak signal it may take a few seconds to reflect in the status bar icon.
Turn off roaming for one country only, without losing data at home
A common misconception is thinking that you have to choose between "roaming on" or "no internet for the entire trip." This is not the case: you can turn off roaming for your home line (to avoid overspending) and at the same time have data working in the country you are in, with a second local line in eSIM format.
The procedure is the same as the previous point, but applied only to the line you want to stop: go to Settings > Cellular, tap that specific line, go to Cellular Data Options and turn off Data Roaming. You leave the other line — the local or travel line — as is, with its data on, because it doesn't roam: it operates within its own country or coverage region.
Data roaming and cellular data are two different switches. Turning one off does not turn off the other, and that mix is what often leads someone to believe they "turned off roaming" when in reality they only changed their default data line.
What to do if you can't find the "Data Roaming" option
If you don't see the Data Roaming switch in Settings > Cellular > Cellular Data Options, it's almost always one of these four causes, in order of probability:
| Probable cause | How to confirm | What to do |
|---|---|---|
| You have more than one line and didn't select any | In Cellular you see a list of lines instead of the options menu | Tap the specific line before looking for Cellular Data Options |
| The carrier restricts the menu (old carrier profile) | The switch appears grayed out or doesn't appear even if you tapped the correct line | Settings > General > About > check if there's a pending carrier update |
| Outdated iOS | Settings > General > Software Update shows an available version | Update to the latest iOS version before trying again |
| Airplane mode activated | The airplane icon appears in the status bar | Turn off airplane mode: with it on, iOS hides cellular data options |
If you've ruled out all four and the switch still doesn't appear, try restarting your iPhone 16. It's not the most elegant solution, but in iOS it resolves a real part of these cases because it refreshes the network profile loaded by the carrier when the phone is turned on.
Data roaming vs. cellular data: turning one off is not the same as turning off the other
They are two switches in the same menu, but they control different things, and confusing them is often behind cases like "I turned off roaming and still got a charge" or, conversely, "I turned something off and lost internet in my own country."
| Switch | What it turns off | Effect if you turn it off in your home country | Effect if you turn it off while traveling |
|---|---|---|---|
| Cellular Data | All cellular internet for that line | You lose data in general, only Wi-Fi | You lose data in general, only Wi-Fi |
| Data Roaming | Only data usage outside your home country/network | No change, you are not roaming | Cuts data consumption due to roaming, without touching your local plan |
Turning off "Cellular Data" completely is an emergency solution: it leaves you without cellular internet until you find Wi-Fi, including notifications and apps that depend on a constant connection. Turning off only "Data Roaming" is the surgical solution: it precisely cuts the consumption that overcharges you, without affecting anything else on your line.
There's a nuance that almost no guide mentions and that's worth clarifying before traveling: the data roaming switch only controls data traffic. Incoming calls and SMS can still incur voice roaming charges according to your carrier's rules, and this is not always controlled from the iPhone itself — sometimes you have to ask the carrier to deactivate voice roaming or contract a specific package. If you want to completely protect yourself and not depend on what your carrier decides, the safest combination is airplane mode on, Wi-Fi for what you can, and a local data line (physical or eSIM) for everything else.
How to check that roaming is actually off
After turning off the switch, there are three quick ways to confirm that it worked, without waiting to see if a charge arrives or not.
- Look at the status bar icon. If "SOS" or "No Service" appears outside your country, it's a sign that the line is not using data for roaming (although it may still receive calls if voice roaming is separate).
- Check data usage. Settings > Cellular > scroll down to the section of the app that consumes the most. If the counter doesn't go up while you're outside your country, the cutoff worked.
- Go back to Cellular Data Options. The switch should appear gray, not green. This is the most direct visual confirmation and the first thing you should check if you have doubts.
A practical detail: the carrier icon in the status bar sometimes shows the name of the local carrier your iPhone automatically registered with, even with data roaming off. That's normal: the phone still "sees" networks for calls and SMS, but without the data switch on, no data consumption is generated that way.
You've already received a roaming charge: what to do now
If the charge has already appeared on your bill or prepaid balance, the first thing to understand is that this is almost never an iPhone error: it's a setting that remained active while you were connected via roaming, either because the switch was never turned off, because it reactivated when you reset the phone, or because the country you visited was not covered by the roaming package you had contracted.
With that in mind, here are the steps in order of real usefulness:
- Confirm the exact date and consumption in your carrier's app or portal, not just on the summarized bill. You need to know if it was a specific day or the entire trip.
- Check if you had a roaming package contracted that expired before the end of the trip, or that didn't cover the country you were in. This is a common cause of a "surprise" charge when the person had indeed activated something.
- Contact your carrier with that specific data (date, country, MB consumption) and ask if the charge corresponds to roaming without a contracted package or an excess over the package you did have.
- Turn off data roaming right now by following point 2 of this guide, so it doesn't happen again on your next trip.
For your next trip, the way to avoid depending on whether or not you remembered to flick a switch is not to use your home carrier's roaming for data: instead, use a local line (eSIM) that activates before you leave and that, by design, does not generate roaming charges because it is not roaming, it is a line from the destination country. In point 9, we compare the two routes with objective criteria.
Roaming off but no internet: how not to be incommunicado on your trip
Turning off data roaming solves the problem of the charge, but opens up the next one: how do you get maps, messaging, and email without cellular data? There are three routes, and they are not mutually exclusive.
- Hotel, airport, or restaurant Wi-Fi. Free, but intermittent: not suitable for navigating while moving around or using maps in real time.
- A roaming package from your home carrier. Keeps your same number active for data, but is usually more expensive per MB than a local line and depends on the country being covered by that specific package.
- A travel eSIM or international eSIM. It is installed before you leave (you only need Wi-Fi for installation, not to use it afterward) and provides local data in the destination country without affecting your home line or its roaming.
If you've never installed an eSIM, the complete process — what it is, how to install it, and which phones support it — is explained step-by-step in this guide on what an eSIM is and in this one on how to install it. The iPhone 16 is compatible with eSIM in all its variants, but if you have doubts about other models, there is a list in eSIM compatible phones.
Carrier roaming vs. travel eSIM: which is better?
Both routes give you data outside your country, but they solve the problem in different ways. The practical difference is what you control and what the carrier controls.
| Criterion | Roaming with your home line | Local or international eSIM |
|---|---|---|
| Requires touching the roaming switch | Yes, and you have to remember to turn it off when you return | Not applicable: it's a local line, it doesn't roam |
| Keeps your original number active | Yes, for calls and SMS | Yes, if you leave the original line installed alongside the eSIM |
| Depends on country coverage in your plan | Yes, some countries are excluded from packages | Depends on the coverage chart of the chosen eSIM |
| Installation | Requires nothing, it comes with the line | Installed before traveling, only needs Wi-Fi for installation |
If your problem is specific — a short trip and you already know how to turn off roaming — the steps in this guide are sufficient. If you travel frequently, or want to stop remembering a switch every time you cross a border, it makes more sense to solve it with a data line that is already "local" at the destination. That's precisely the area where eSIM and traditional roaming compete, compared in more detail in this guide on eSIM vs. roaming.
Frequently asked questions
Where is roaming on an iPhone 16?
In Settings > Cellular > Cellular Data Options > Data Roaming. If you have more than one line, you first need to tap the specific line before that menu appears.
How do I turn off roaming on my iPhone 16?
Go to Settings > Cellular, tap the line if you have more than one, then Cellular Data Options, and turn off the Data Roaming switch. It applies immediately, without restarting the phone.
How do I disable my iPhone 16 when traveling to another country?
You don't need to disable the entire phone: simply turn off data roaming for your home line (Settings > Cellular > Cellular Data Options) to avoid charges, without losing the ability to use Wi-Fi or a local data line.
Where do I turn roaming on and off on the iPhone?
It's the same switch for both turning on and off: Settings > Cellular > Cellular Data Options > Data Roaming. Green is on, gray is off.
Does turning off data roaming also cut off calls and SMS while roaming?
Not necessarily. That switch only controls data traffic. Incoming roaming calls and SMS depend on your carrier's voice roaming rules, which in some cases need to be managed separately, directly with the carrier.
Why doesn't the data roaming option appear on my iPhone 16?
The most common causes are: having multiple lines and not selecting any, an outdated carrier profile, outdated iOS, or having airplane mode on (which hides that menu). Checking and ruling out each one, in that order, usually solves it.
Can I leave data roaming off all year, even without traveling?
Yes. If you're not traveling, that switch doesn't affect your normal data usage within your country, because it only comes into play when the phone connects to a network outside your home network.
Is it useful to turn off data roaming if I'm going to use a travel eSIM?
Yes, and it's precisely the recommended combination: you turn off roaming for your home line so it doesn't incur charges, and you leave data on for the travel eSIM, which, being a local line in the destination country, doesn't roam.
In summary
To disable roaming on an iPhone 16, the shortest path is Settings > Cellular > (choose the line if you have more than one) > Cellular Data Options > Data Roaming, and toggle the switch off. If it doesn't appear, check line selection, carrier profile, iOS version, and airplane mode, in that order. And remember that turning off data roaming doesn't always turn off voice roaming: to fully protect yourself, combine airplane mode with Wi-Fi or with a local data line.
If what you need now is that local data line to avoid relying on your carrier's roaming on your next trip, PuraSIM's international eSIM offers coverage in over 200 destinations, with activation in approximately 1 minute once installed, up to 180 days from purchase to activate it when you need it, and 24/7 support in all languages via email and WhatsApp if anything is unclear along the way. If you are traveling with eSIM for the first time, it's advisable to start with the definitive eSIM guide for travel, and if something doesn't work as expected once installed, the list of common eSIM problems covers the most frequent cases.
