Simday

How it works

Travel the world. Stay connected.

Set up a data plan before you fly. No roaming fees, no SIM swaps, no surprises — just reliable connectivity the moment you land.

What is an eSIM?

A SIM card built into your phone

An eSIM (embedded SIM) is a digital SIM that lets you activate a mobile plan without a physical card. It is already inside most modern smartphones — you just need to add a data plan.

No physical card

Everything is digital. Nothing to insert, lose, or damage.

Instant delivery

Your plan arrives by QR code seconds after purchase.

Keep your number

Your primary SIM stays active. Use the eSIM only for data.

The process

Four steps to seamless connectivity

From browsing to boarding — done in minutes.

01

Choose your destination

Pick the country or region you're traveling to. We'll show you the right plan for your trip.

150+ countriesRegional plansBest coverage

02

Purchase & install

Complete checkout in under a minute. Scan the QR code or tap to install directly on your device.

QR or direct installUnder 60 secondsNo app required

03

Activate on arrival

Toggle on your eSIM when you land. Your plan starts the moment data is first used.

One toggleAuto-connectsNo airport Wi-Fi needed

04

Use data, stay connected

Browse, navigate, and message at local speeds. Your plan runs until the data or days expire.

Maps & navigationMessaging appsLocal speeds

Device compatibility

Works on most modern devices

eSIM is supported on iPhone XS and later, most Samsung Galaxy S and A series from 2019, Google Pixel 3 and later, and many other Android devices.

Apple iPhone
Samsung Galaxy
Google Pixel
Many more

eSIM unlocked

Your device must be carrier-unlocked to use a third-party eSIM.

iOS 12.1+ or Android 9+

Most devices purchased after 2019 meet this requirement.

Internet connection to install

You only need Wi-Fi once to download the profile. After that, no Wi-Fi required.

FAQ

Frequently asked questions

A regular SIM is a physical card you insert into your phone. An eSIM is embedded in your device and is activated digitally — no card, no slot change.

Most smartphones released after 2018 support eSIM, including iPhone XS and newer, Samsung Galaxy S20 and newer, and Google Pixel 3 and newer. Check your device settings under Cellular or Mobile Data.

No. Your primary SIM stays in your phone. The eSIM runs alongside it — your home number remains active for calls and SMS, while the eSIM handles data abroad.

Your plan activates the first time your device uses data on the eSIM network, not at the moment of purchase. So you can install everything before you travel.

Once your data allowance is used up, data stops. Your plan does not automatically renew or charge you extra. You can purchase a new plan at any time.

Yes — Simday offers regional plans that cover multiple countries in one package. Check the plan details on the destination page for exact coverage.

Ready to stay connected?

Browse destinations and find a plan for your next trip.