Popular right now
Where travellers are landing
The lowest price for each destination. Open one to compare daily unlimited and fixed data plans.
Travelling across a region? One eSIM covers it all.
How it works
Three steps. Two of them at home.
Buy and install before you fly, on Wi-Fi, with no rush. The only thing left for the airport is switching it on.
- At home
Step 1
Choose a plan
Pick your destination and how much data you need.
- At home
Step 2
Install the eSIM
Scan the QR code we send you. Do it at home, on Wi-Fi, before you leave.
- On arrival
Step 3
Land connected
Switch the eSIM on when you arrive and you are online.
Before you buy
Will it work on my phone?
eSIM needs a compatible, carrier-unlocked phone. Search your model, or dial a code to check in ten seconds.
Compare us
Why ONE eSIM
Cheapest 1 GB in 54 of 58 countries compared
Against Airalo, Holafly, Saily and Nomad, checked 27 October 2026. The full table is public and dated.
See the prices →242 destinations: local, regional and global
Single countries, regions such as Europe or South East Asia, and global plans for trips with many stops, on one account.
Browse the store →Every plan names its networks
The operators and whether they run 3G, 4G or 5G are on the plan before you pay.
How to choose →A full refund until you install
Prices in US dollars, no subscription. Any eSIM you have not installed is refunded in full.
Refund terms →
Questions
Before you fly
Will an eSIM work on my phone?
Most phones from 2018 on support eSIM: iPhone XR and XS or later, Pixel 3 or later, Galaxy S20 or later, and every Z Flip and Z Fold. The phone must also be carrier-unlocked: on iPhone, Settings › General › About › Carrier Lock says “No SIM restrictions”. Check your exact model before you buy.
Read the full guideWhen should I install it?
At home, on Wi-Fi, before you travel; you have 180 days from purchase to install. Keep the new line turned off until you land: on nearly every plan validity starts the first time it connects abroad, and the plan page says if yours starts on installation instead.
Read the full guideHow do I get the eSIM after paying?
A QR code appears on your order page and arrives by email within a minute. On iPhone with iOS 17.4 or later you can install it with one tap; on other phones scan the QR code or enter the details by hand.
Read the full guideWhat speed will I get, and can I use a hotspot?
Every plan shows its networks and generation, 3G, 4G or 5G, before you buy, and most are 5G. Personal hotspot is allowed. Daily unlimited plans run at full speed each day and then slow to the fair-use speed shown on the plan.
Read the full guideWhich travel eSIM is the best value?
Compare before you buy. In 54 of the 58 countries we price-check, ONE eSIM has the cheapest 1 GB plan against Airalo, Holafly, Saily and Nomad (54 of 58, checked 27 October 2026), and every plan names its networks and 3G, 4G or 5G before you pay. The full table, with the date, is public.
Read the full guideWhat if I change my plans?
An eSIM that has not been installed on any device is refunded in full; reply to your order email. Once installed the line is live with the operator and it cannot be returned, unless it never worked and the operator confirms the fault.
Read the full guide