Quick answer
Your phone supports eSIM if dialing *#06# shows an EID number. It must also be carrier-unlocked. Most iPhones from the XS and XR onwards, Samsung Galaxy S20 and newer, and Google Pixel 3 and newer support eSIM, with some regional exceptions.
How do I check if my phone supports eSIM?
Use either of these checks.
- Dial *#06#. If the screen shows an EID (a long number), the phone supports eSIM.
- iPhone: Settings, then General, then About. Look for an EID entry.
- Android: Settings, then the SIM or Connections menu. Look for Add eSIM or Download SIM.
Is my phone carrier-unlocked?
A phone bought on contract may be locked to your home carrier, and then it will refuse another carrier’s eSIM. On iPhone, go to Settings, General, About, and look at Carrier Lock: it should say No SIM restrictions. On Android, ask your carrier, or try another SIM card in the phone.
Which phones usually do not support eSIM?
Most iPhones sold in mainland China use two physical SIM slots instead of eSIM. Many budget and older Android phones also lack eSIM, even when a more expensive model in the same range has it. Check the exact model, not just the brand.
Frequently asked questions
What is an EID?
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The EID is the identifier of the eSIM chip in your phone. If your phone shows one when you dial *#06#, it has an eSIM chip.
Can I use the Cambodia eSIM and my home SIM at the same time?
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Yes, on phones that support dual SIM. Most eSIM phones do. Keep your home SIM on for SMS and bank codes, with roaming off, and use the Cambodia eSIM for data.
What if my phone does not support eSIM?
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Then this eSIM will not install on it, so do not buy it for that phone. A physical SIM bought in Cambodia is the alternative.
Related guides
How to install a Cambodia eSIM on iPhone
Scan the QR, label the line, and turn on Data Roaming.
How to install a Cambodia eSIM on Android (Samsung, Pixel)
Samsung Galaxy and Google Pixel steps, from the same QR.
Cambodia trip checklist: eSIM, entry rules, and apps
What to sort out in the days before you fly.