How to check if your phone supports eSIM
Before buying a travel eSIM, it's worth spending a couple of minutes making sure the phone can actually use one. eSIM support depends not just on the model, but also on the region the phone was sold in and whether it's locked to a specific carrier. Here's a step-by-step check that works for most modern smartphones, with notes on the major brands.
Step 1. Check the phone's settings directly
The most reliable method is looking inside the device's own settings, since that shows what's actually available on this particular phone rather than the model in general. The relevant option is usually found under the section for cellular or SIM settings, labeled something like "add eSIM," "add a cellular plan," or "add a data plan."
If there's no such option at all, only management of an already-installed physical SIM, that usually means either the phone doesn't support eSIM, or the feature is disabled by the carrier or the regional firmware version — worth checking separately before drawing a conclusion.
Step 2. Check by brand and model
If the setting can't be found, or there's still doubt, it helps to check what's generally known about the brand and phone lineup — for major manufacturers this is fairly predictable.
- iPhone: eSIM is supported from roughly the iPhone XS/XR onward, but in some countries, including certain versions for mainland China, some models were sold with two physical trays instead of eSIM
- Samsung Galaxy: eSIM is present in most recent S and Z flagship lines, but not in every regional or budget version
- Google Pixel: eSIM support has been standard across the Pixel lineup for several generations, making it one of the most predictable brands here
- Xiaomi, Redmi, POCO: the picture is mixed — the feature shows up more often in newer, higher-tier models, and can be missing from budget models and some regional versions
- Any brand: it's always worth checking the exact model's specs page on the manufacturer's site for confirmation
Search for your exact model name, not just the lineup's general name — versions of the same phone sold in different markets often differ in eSIM support.
Step 3. Check whether the phone is carrier-locked
Even if the model technically supports eSIM, installing an outside profile will be blocked if the phone was bought on contract and tied to a single carrier. That's a separate kind of lock, unrelated to the eSIM technology itself, but it stops a different provider's profile from being installed.
This can be checked by trying a physical SIM card from another carrier: if the phone asks for an unlock code or flatly refuses to work with the other card, it's locked, and it needs to be unlocked by the carrier that sold it before an outside eSIM can be installed.
What EID is and why it's sometimes needed
EID (eSIM Identifier) is a unique number belonging to the eSIM chip itself inside the phone — a kind of serial number for the eSIM module, separate from the device's IMEI. Some eSIM profile providers ask for the EID when placing an order, to tie the profile more precisely to that specific device.
The EID is usually found in the same settings screen as the eSIM-adding option, or in the general device information. If a phone has neither an EID number nor an eSIM option in its settings, that's further confirmation the model or its specific version doesn't support the feature.
A quick checklist before buying an eSIM
Putting all the steps together gives a compact list for a fast self-check before ordering a plan.
- The phone's settings include an option to add an eSIM or cellular plan
- The model and its regional version officially support eSIM according to the manufacturer
- The phone is not carrier-locked, or has already been unlocked
- The device's EID is on hand, if the chosen eSIM provider requires it
- Reliable Wi-Fi or internet access is available for downloading the profile during setup