An eSIM is a digital SIM built into your phone. How it differs from a plastic SIM, why it wins for travel and which phones support it — in plain words.
An eSIM (embedded SIM) is a digital SIM card built into your phone at the factory. No plastic card to wait for, hunt down or swap: you buy a plan online, scan a QR code and you are connected in minutes.
Nothing to insert or eject — and no tiny card to lose, either.
No shop visit, queue or courier — the QR code arrives right after purchase.
No swapping cards for every trip — your Turkey, Dubai and Europe eSIMs sit together on one phone.
The eSIM only carries data — calls and SMS still reach your primary SIM as usual.
Carrier roaming can cost a small fortune per day; a travel eSIM plan starts at a couple of dollars.
Install the eSIM at home — switch off airplane mode after landing and the data is already flowing.
Passport queues at the airport, unfamiliar kiosks, haggling in a foreign language — all of it stays behind.
We have checked 324 models across 15 brands: 167 have an eSIM and the rest do not. eSIM is a property of the exact model rather than of the brand — one Galaxy A model has it and the next one does not.
Infinix, Tecno, Realme — no model of these brands on our list has an eSIM. These are the common budget phones here, so it is worth checking before paying.
A chip soldered into the phone at the factory. It cannot be put in or taken out; a plan is loaded onto it.
That chip's 32-digit serial. If it appears next to the IMEI when you dial *#06#, the phone has an eSIM.
A one-time code that loads the plan onto the phone. Once scanned it counts as used, so it cannot be installed again on another phone.
The loaded plan itself. One phone can hold several profiles and switch between them.
The access point used for data. QulaySIM profiles carry it automatically; there is nothing to type in.
Your own operator giving you data abroad through someone else's network. The most expensive option — avoiding it is the point of an eSIM.
Pick a destination, choose a plan and pay online. The QR code appears in your account within minutes — no shop involved.
No. The eSIM only carries data; your primary SIM and number stay put — calls and SMS arrive as usual.
No — an eSIM binds to the device it is installed on. The QR code is usually single-use, so scan it on the phone you are actually taking.
It depends on the plan: validity usually starts from the first connection. Install ahead of time, switch it on when you arrive.
A carrier-locked phone will not accept eSIMs from other networks. Ask your carrier to unlock it first.
Yes — installing needs Wi-Fi or a working connection, because that is when the profile downloads to the phone. This is why it is worth installing at home before you fly, rather than arriving with no data and no way to fetch it.
No. The QR is one-time: once scanned it counts as used. Changing phones means a new plan.
The connection stops but the eSIM stays on the phone. You can top the same eSIM up with another package — there is nothing to install again.
Our travel plans are data only. Calls go over the internet — Telegram, WhatsApp, FaceTime. Ordinary number calls stay on your main SIM.
Not when you buy it, but the first time the eSIM connects to a network abroad. So you can install it at home and the clock will not start until you arrive.