Quick answer
Yes. AT&T supports eSIM on all eSIM-capable phones, including iPhone XS and newer, recent Google Pixel, and Samsung Galaxy models. You can run AT&T as an eSIM and add a second travel eSIM alongside it. AT&T offers an International Day Pass for travel, but because it is billed per day, a travel eSIM is usually cheaper once your trip runs beyond a couple of days.
Which phones work with AT&T eSIM?
Any eSIM-capable phone: iPhone XS / XR and later, Google Pixel 3 and later, Samsung Galaxy S20 and later, and most recent flagship Android devices. AT&T phones support Dual SIM, so you can keep your AT&T number while a travel eSIM handles data abroad.
AT&T data abroad: Day Pass vs travel eSIM
| Option | How it works | Typical cost |
|---|---|---|
| AT&T International Day Pass | Uses your plan abroad, billed each day used | A daily fee per line, per day used |
| AT&T Cruise / international add-ons | Specific packages for some trips | Varies by package |
| Flysimio travel eSIM | Full-speed local 4G/5G data | From $1.75 |
Why a travel eSIM is cheaper on longer trips
A daily roaming fee multiplied across a two-week trip almost always exceeds the price of a full travel data plan. With Dual SIM, your AT&T line keeps your number for calls and texts while a Flysimio eSIM delivers full-speed local data for one low price. Switch off Data Roaming on the AT&T line so the Day Pass never activates unintentionally.
How to set up a travel eSIM alongside AT&T
- Buy your destination plan from Flysimio before you leave — installation needs Wi-Fi.
- Open the Flysimio email containing your QR code.
- iPhone: Settings -> Cellular -> Add eSIM -> Use QR Code. Android: Settings -> Network & Internet -> SIMs -> Add eSIM.
- Scan the QR code; it installs in under 30 seconds.
- Keep the AT&T line for calls/texts; set the travel eSIM as Cellular Data.
- Turn off Data Roaming on the AT&T line to avoid Day Pass charges.
Frequently asked questions
Does AT&T support eSIM on iPhone?
Yes. AT&T supports eSIM on every iPhone from the iPhone XS / XR onward, including all iPhone 13, 14, 15, and 16 models, and you can add a travel eSIM for data abroad.
How much is the AT&T International Day Pass?
It is a flat daily fee per line for each day you use it abroad. The exact price changes, so check AT&T's current international page; for longer trips a flat-rate travel eSIM is typically cheaper.
Can I keep my AT&T number and use a travel eSIM?
Yes. With Dual SIM your AT&T line stays active for your number and calls, while a travel eSIM carries full-speed data at local rates.
How do I avoid AT&T roaming charges abroad?
Turn off Data Roaming on the AT&T line and use a Flysimio travel eSIM for data. With roaming data off, the International Day Pass will not activate.
Sources & further reading
Daniel Reyes
eSIM & Mobile Networks Writer
Daniel is a telecoms writer who has covered mobile networks and eSIM technology since 2019. He breaks down carrier coverage, device compatibility, and activation step by step.