Singapore is one of the easiest places in the world to stay connected: coverage is near-total, including underground on the MRT, and travel eSIM data is cheap. The only real decisions are how much data to buy and whether a Singapore-only plan or a regional plan fits your trip — Singapore is often a stopover on the way to Malaysia, Indonesia or Thailand.
Short answer: for a stopover or a city break, a small Singapore plan installed before you fly is all you need. If Singapore is one stop on a longer Southeast Asia trip, compare a regional bundle.
What a Singapore eSIM costs
At the time of writing (October 2026), Wanderly's Singapore plans start at $2.99 for 1GB, and 10GB costs around $7. The median across all data-only Singapore plans is about $0.70 per GB — below the $1.43 median across the 187 countries in the Wanderly eSIM Price Index.
Several of the cheapest per-GB bundles last only three to five days. That suits a stopover; for a longer stay, choose validity that covers every day of the trip.
Networks and coverage
Singapore's main networks are Singtel, StarHub and M1. All three cover the whole island, and a travel eSIM connects to a partner network automatically.
- Changi Airport: strong signal from the gate — useful for booking a Grab before you reach the taxi rank.
- MRT: coverage in stations and in the tunnels between them.
- Marina Bay, Orchard, Chinatown, Little India, Sentosa: excellent 4G and 5G.
- Pulau Ubin and the nature reserves: good on main paths; quieter on the more remote trails.
How much data you need in Singapore
| Trip | Suggested data |
|---|---|
| Stopover (24–72 hours) | 1–3 GB |
| One week | 5 GB |
| Two weeks or remote work | 10–20 GB |
Grab, maps, payments and messaging are light. Video calls and uploading video are the heavy users. See how much data you need for travel.
Singapore on a Southeast Asia trip
Singapore often sits at the start or end of a regional route. Crossing into Johor Bahru by road or rail? A Singapore-only plan will not cover Malaysia — see the best eSIM for Malaysia. For several countries, the best eSIM for Southeast Asia explains how to check a regional bundle's country list. Heading to Hong Kong as well? See the best eSIM for Hong Kong.
Setting it up
- 1Check your phone supports eSIM and is unlocked on our compatibility checker.
- 2Install the eSIM over WiFi before you fly — iPhone or Android steps.
- 3On landing, select the eSIM for mobile data and turn on data roaming for that line.
- 4Keep your home SIM for calls and texts with its data roaming off.
FAQ
How much does an eSIM for Singapore cost? Wanderly Singapore plans start at $2.99 for 1GB, with a median of about $0.70 per GB.
Does an eSIM work on the Singapore MRT? Yes. Coverage extends to stations and tunnels.
Is a Singapore eSIM worth it for a stopover? Yes, if your phone supports eSIM. A small plan costs a few dollars and works from the moment you land, with no SIM counter.
Will a Singapore eSIM work in Johor Bahru? No. Johor Bahru is in Malaysia, so you need a plan that covers Malaysia.
Can I keep my WhatsApp number? Yes. WhatsApp keeps your existing number and runs over the eSIM's data.