Landing at Changi and want Grab, Google Maps and WhatsApp working before you reach the taxi queue? A tourist eSIM for Singapore does that. You buy it online, install it before you fly, and it connects the moment you land.
Quick answer: how to get an eSIM for Singapore in 4 steps
- Check your phone: it needs eSIM support and must be carrier-unlocked.
- Buy a Singapore plan online: pick the data amount and days for your trip.
- Install it on Wi-Fi: scan the QR code from your email, ideally the night before you fly.
- Switch it on at Changi: choose the eSIM for mobile data and you are online.
Why tourists use an eSIM in Singapore
- Online from the moment you land: no airport SIM counter after a long flight.
- Nothing to swap: your home SIM can stay in the phone; the eSIM handles your data.
- Fast data: 5G where available on Singtel, 4G/LTE elsewhere, across the island.
- The right size: plans from 1GB up to 20GB, or Unlimited for heavy use.
- Bought from home: no store visit and no paperwork in Singapore.
How much data do you need in Singapore?
- Stopover or 2–3 days (maps, Grab, WhatsApp): 1GB to 3GB.
- A week of sightseeing (plus photos and social media): 5GB to 10GB.
- Business trip or heavy use (video calls, hotspot-free work on the phone, streaming): 20GB or Unlimited.
Running low? Top up from the Olysim app and the data lands on the same eSIM.
eSIM vs a physical tourist SIM in Singapore
| Tourist eSIM | Physical SIM at the airport | |
|---|---|---|
| Where you buy it | Online, before you fly | Counter or shop after landing |
| When it works | As soon as you land | After you buy and insert it |
| Your home SIM | Stays in the phone | Often has to come out |
| Network speed | 5G / 4G / LTE | 5G / 4G / LTE |
| Opening hours | Any time | Store hours only |
Will a Singapore eSIM work everywhere I go?
Yes, for the places tourists visit: Marina Bay, Sentosa, Orchard Road, Chinatown, Little India and Jewel at Changi all have strong coverage. Singapore is small and very well covered, so the island is one coverage area.
Calls and messages on a data-only eSIM
The Olysim Singapore eSIM is data only, so it has no local phone number. You call and message through apps like WhatsApp, FaceTime or Google Meet over its data. See Does an eSIM have a phone number? for how this works.
Not sure your phone supports eSIM? Check the eSIM compatible device list, then follow the eSIM installation guide.
