How a SimFuse eSIM works
An eSIM is a digital SIM already built into your phone. With SimFuse you buy a data plan online, install it in a tap, and connect to a fast local network the moment you land - no plastic card, no kiosk, no roaming bill.
Connected in three steps
From checkout to coverage in under a minute. No store visit, no paperwork, no swapping tiny plastic cards.
Pick your plan
Choose a data plan for your destination - single country, region, or global. Pay in seconds with Apple Pay, Google Pay or card.
Install in a tap
Your eSIM arrives instantly. Scan the QR code or install directly from the SimFuse app - all on Wi-Fi, before you fly.
Land and connect
Your eSIM activates automatically when you arrive. No SIM kiosk, no roaming bill - just open your maps and go.
eSIM vs roaming vs local SIM
| SimFuse eSIM | Home roaming | Local SIM card | |
|---|---|---|---|
| Get connected on arrival | ✓ | - | ✓ |
| No roaming bill shock | ✓ | - | - |
| Keep your own number | ✓ | ✓ | - |
| Buy before you travel | ✓ | - | - |
| No queue at the airport | ✓ | ✓ | - |
| Top up from your phone | ✓ | - | - |
Frequently asked questions
An eSIM is a digital SIM built into your phone - there is no plastic card to insert. You download a data plan over the air and your phone connects to a local network instantly. Most phones released since 2018 support eSIM.
You buy a plan, install the eSIM with a QR code or directly in the SimFuse app, and it connects to a partner network at your destination. Your home SIM stays active for calls and texts, while the eSIM handles your data.
Most phones from iPhone XS / XR (2018) onward, plus recent Samsung Galaxy, Google Pixel and many other models, support eSIM. Open Settings and look for 'Add eSIM'. Your phone must also be carrier-unlocked.
Validity begins when the eSIM first connects to a network at your destination, not when you buy or install it. Installing at home over Wi-Fi uses no data, so you can set everything up before you fly.
Yes. SimFuse travel eSIMs are data-only and run alongside your physical SIM, so your home number stays active for calls and texts. You simply set the eSIM as your data line while travelling.
SimFuse plans are data-only, but you can call and message over WhatsApp, FaceTime, iMessage, Telegram and any other app using your data. Your home SIM remains available for traditional calls and SMS.
As a rule of thumb: light use (maps and messaging) is about 1GB per week, moderate use (social media and browsing) about 3–5GB per week, and heavy use (streaming or hotspot) 10GB+ or an unlimited plan.
Yes - SimFuse plans support tethering and hotspot, so you can share your data with a laptop, tablet or a travel companion's phone.
Your next trip starts with a tap
Join travellers in 200+ countries who stay connected with SimFuse. Instant eSIM, no roaming, no surprises.