Can You Use an eSIM and a Physical SIM at the Same Time?
You want a cheap data plan for your trip, but you don't want to give up your US number. So can you use an eSIM and a physical SIM at the same time? Yes, on iPhone XS and XR or later, on Pixel 3a or later, and on Samsung Galaxy phones with eSIM. Both lines stay on for calls and texts. Cellular data runs on one of them at a time, and you pick which.
There is a twist for US buyers. Every iPhone 14 or later bought in the US has no SIM tray, so there is no physical SIM to pair with. The same setup then runs on two eSIMs.
In short:
- Both lines take calls and texts. Only one carries cellular data at a time.
- On a trip, put data on the travel eSIM and keep calls and texts on your US number, with data roaming off on that line.
- No tray? You need a phone that runs two eSIMs: iPhone 13 or later, or Pixel 7 or later if your carrier allows it. Most Samsung models run one eSIM.
- During a regular call on your US line, expect data to pause on iPhone.
How two lines work
The mode is called Dual SIM Dual Standby, or DSDS. Each line waits for calls and texts on its own. Apple says your iPhone "can use one cellular data network at a time," and Google says only one SIM can be the default for data on Pixel.
Three limits sit on top of that. Phones run two lines at once, not three. Other eSIMs wait in memory, switched off. And to use two carriers on an iPhone, Apple says your carrier must lift its lock, or both plans must come from the same carrier.
What your phone can do
| iPhone | Pixel | Samsung Galaxy | |
|---|---|---|---|
| Physical SIM plus eSIM | XS, XS Max, XR or later | 3a or later | On phones with eSIM and a SIM slot |
| Two eSIMs at once | iPhone 13 or later | Pixel 7 or later, if your carrier allows it | Select models only |
| eSIM only, US models | iPhone 14 or later | Pixel 10 series, except 10 Pro Fold | Check your model |
If your phone has no tray
If you have a US iPhone 14 or later, your number already lives on an eSIM. A travel eSIM goes in as a second eSIM line, and both run at once. Nothing else changes in the steps below. The same goes for a US Pixel 10, if your carrier allows two eSIMs.
The harder case is an older phone or a Samsung. If your US number is on an eSIM and the phone runs only one active eSIM, you have to choose. Turn on the travel eSIM and your US line goes off, along with its calls and texts. Check your model's manual before you buy. If your phone has a slot, ask your carrier if it can move your number to a physical SIM before you go.
Set it up for a trip
Label your lines first, so you can tell them apart. On iPhone, go to Settings > Cellular, tap the number, then tap Cellular Plan Label. Then pick the path for your phone.
iPhone
- Go to Settings > Cellular > Cellular Data and choose the travel line.
- Keep your US number as the Default Line. Apple says this is the number used for people who are not in your Contacts. If you mark the travel line as data only, your US line becomes the default.
- To lock a line to one person, open their contact and pick a default number there.
Samsung Galaxy
Go to Settings > Connections > SIM manager. The name of this menu differs slightly by model. Choose the travel eSIM under Mobile data, and your US SIM under Calls and Messages. You can also switch SIMs from the quick settings panel or inside the phone and messages apps.
Pixel
Go to Settings > Network & internet > SIMs. Under Your primary SIMs, choose a SIM for Calls, Texts, and Mobile data. Calls can be set to Ask every time. Put Mobile data on the travel eSIM.
Install the travel eSIM at home on Wi-Fi. A Moosetrip plan counts days from your first connection in the country you are visiting, so installing early uses nothing up.
What happens when a call comes in during a call
A data-only travel eSIM can't take calls, so this part matters only if both lines have numbers. The answer depends on the phone and on the second line's carrier.
| Phone | Call to your other line during a call |
|---|---|
| iPhone | Goes to voicemail, if you set it up with your carrier. Wi-Fi Calling on that line's carrier can let you answer it |
| Samsung Galaxy | Can't be answered until the first call ends |
| Pixel 8 and earlier | Goes to voicemail |
| Pixel 8a and later | You can answer and hold the first call, if conditions are met |
Those Pixel conditions are mobile data on for both SIMs, automatic data switching on for the second SIM, and Wi-Fi Calling support from the second SIM's carrier.
An iPhone may also show No Service on the other line during a call. Apple says this happens if that carrier doesn't support Wi-Fi Calling or if it is turned off.
What happens to data during a call
- iPhone. Allow Cellular Data Switching lets the voice line carry data during a call. Apple's footnote says this switching won't work if you are using Data Roaming. On a trip you are, so data pauses during a regular call on your US line. Maps and apps pick up again when you hang up.
- Pixel 8 and earlier. All data uses the SIM you are calling on. Data during calls changes that, so leave it off for your US line. Otherwise data can run through that line while you talk.
So if you need a map while on the phone, make the call in an app over data. It runs on the travel eSIM and keeps your US line out of it.
How not to pay for roaming on your main line
A single background refresh on your US line can cost real money. Verizon says app refreshes, email sync, and software updates can start a TravelPass session, and that is $12 a day in most countries, on October 30, 2026. See how a TravelPass day is counted.
Check these before you fly and again after you land:
- Data roaming is off on your US line.
- Data roaming is on for the travel line. AT&T notes it must be on to use cellular data abroad.
- Cellular Data is set to the travel line.
- Allow Cellular Data Switching is off on iPhone.
iOS 26 adds one more step. On arrival, your iPhone may show "Turn On Travel eSIM." Pick "Travel eSIM and Current eSIM" to keep both lines. "Travel eSIM Only" leaves your US number off, so regular calls and texts won't reach you. Apple warns that even with both lines on, "you might still incur roaming fees from your home eSIM," so check the first item again.
Common problems
Data is running on the wrong line. Open Cellular Data on iPhone, Mobile data on Samsung or Pixel. Then look at the data switching settings above.
A second line disappeared. It is probably off. Look for the line's on switch in Settings on iPhone, Use this SIM on Pixel, or SIM manager on Samsung. If both lines are eSIMs and your model runs one, only one stays on.
A call won't go through. Check your default line. A data-only eSIM can't make regular calls.
Visual Voicemail and picture texts stopped. Apple says that if data roaming is on for your data line, the voice-only line loses Visual Voicemail and MMS. Regular calls and texts are not on that list.
Pixel shows "Voice unavailable" or "Voice interruptions." Google says the two SIM networks aren't working well together. Contact your carrier.
For no signal after landing, see eSIM not working abroad.
When you don't need a second line
- Your US plan already covers the destination. Verizon says all Unlimited plans include data, talk, and text in Canada and Mexico.
- You use your phone for a day or two. A daily pass can be simpler.
- You don't care about your US number and have a phone with a tray. A local SIM alone works.
If you do want a second line, a Moosetrip plan is data only, with no number. It gives your phone the data line and leaves your US number alone. On October 30, 2026, 3 GB for 30 days costs $7.50 in both Europe and Japan. As a rough guide, that is about 15 hours of maps and taxi apps. Make sure your phone qualifies first, and read how to keep your US number abroad if you rely on bank texts.
Questions
Can I have the same number on a SIM and an eSIM?
No. When you move a number to an eSIM, the eSIM replaces the physical SIM. Two lines need two separate plans.
Can three lines run at once?
No. Phones run two lines at once. Extra eSIMs stay in memory, and you switch between them in Settings.
Does an iPhone 15 from the US take a physical SIM?
No. Apple lists US iPhone 14 models and later as eSIM only. The same model sold in some other countries may have a tray.
Will a local SIM work in my US iPhone 14 or later?
Not a plastic one, since there is no tray. Your options are a travel eSIM, or an eSIM from a local carrier if it offers one.
Sources
- Using Dual SIM with an eSIM, Apple Support, published 2026-10-22, checked 2026-10-30
- Use eSIM while traveling internationally with your iPhone, Apple Support, published 2026-10-22, checked 2026-10-30
- Set up an eSIM on your iPhone, Apple Support, published 2026-10-22, checked 2026-10-30
- Learn which type of SIM your iPhone uses, Apple Support, checked 2026-10-30
- Use dual SIMs on your Pixel phone, Google, checked 2026-10-30
- How do I use dual SIM cards on my Galaxy phone?, Samsung, checked 2026-10-30
- How to Use an eSIM and SIM Card on a Galaxy Phone, Samsung, checked 2026-10-30
- How to use or manage dual SIM cards, Samsung UK, updated 2025-01-16
- TravelPass FAQs, Verizon, checked 2026-10-30
- International Travel FAQs, Verizon, checked 2026-10-30
- Explore Tips on Using Your Device Internationally, AT&T, checked 2026-10-30