Singapore eSIM: Travelsim Asia vs Airalo — Price, Networks & Honest Review (2026)

Last updated: July 23rd, 2026

Travelsim Asia and Airalo are two of the most popular eSIM options for Singapore. Both are legitimate, both get you online the moment you land at Changi, and — because every network blankets this island — both give you the same excellent coverage. The real differences are price, whether you want unlimited data, and how much setup you're willing to do.

We run Travelsim Asia, so we're not neutral. But where Airalo is the better pick, we'll say so.

Price comparison

Here's a side-by-side of the closest matching plans. All prices in USD.

Short trips (1 GB)

Data Travelsim Asia Airalo Verdict
1 GB $2.99 / 7 days $4.00 / 3 days $1.01 cheaper and more than double the validity

For a stopover or a short stay, Travelsim Asia is the clear pick — cheaper and with a 7-day window instead of Airalo's 3 days.

Standard trips (5–20 GB)

For a few days to a couple of weeks of regular use: Grab, maps, messaging, and some browsing between WiFi.

Data Travelsim Asia Airalo Verdict
5 GB / 30 days $9.99 $10.00 Effectively tied at 30 days
10 GB / 30 days $13.99 $16.00 $2.01 cheaper
20 GB / 30 days $19.99 $23.00 $3.01 cheaper

One place Airalo wins: if you only need 5 GB for about a week, Airalo sells a 5 GB / 7-day plan at $9.00 — a dollar under Travelsim Asia's $9.99 / 30-day plan. If you want the longer 30-day window, the two are level at roughly $10. At 10 GB and 20 GB, Travelsim Asia is clearly cheaper.

Extended stays (50 GB)

Data Travelsim Asia Airalo Verdict
50 GB / 30 days $34.99 $48.00 $13.01 cheaper, same 30-day validity

Neither is the outright cheapest 50 GB in Singapore — Nomad is, at $31.00 — but between these two, Travelsim Asia is $13 less than Airalo for the same data and window.

Unlimited plans

Airalo offers "unlimited" Singapore eSIMs. Travelsim Asia does not.

Plan Travelsim Asia Airalo Verdict
Unlimited / 7 days — $27.00 Only Airalo offers this
Unlimited / 30 days — $69.00 Only Airalo offers this

Worth knowing: Airalo's "unlimited" Singapore plans carry a daily high-speed cap (fair-usage policy) after which speed is reduced — check the current threshold on Airalo's page. In a WiFi-rich city like Singapore, most visitors get more usable value from a small fixed plan than from unlimited. A 7-day Airalo unlimited at $27.00 costs nearly three times a Travelsim Asia 5 GB plan ($9.99) that comfortably covers a few city days.

Network coverage in Singapore

This is the section that matters a lot in most countries and barely matters here. Singapore is a compact island where every network delivers strong 4G and 5G everywhere, MRT tunnels included.

Travelsim Asia

  • StarHub ✓

A tier-1 Singapore network

Airalo

  • Singtel ✓
  • M1 ✓

Also tier-1 networks

StarHub, Singtel, and M1 are all major Singapore networks with full island coverage. In practice you'll see no coverage difference between the two eSIMs — both work from Changi to Sentosa to the CBD. Unlike destinations with rural gaps, the network choice here doesn't change where your phone works, so it's not a reason to pick one over the other.

Buying and setup experience

This is where the two differ most.

Travelsim Asia

  • No app required
  • No account or sign-up
  • Buy on the website, eSIM arrives by email
  • Install via tap-to-install link or QR code
  • Top up through a web portal — no login needed

Airalo

  • App required (iOS and Android)
  • Account creation required
  • Buy and install through the app
  • Install via QR code from the app
  • Top up and manage data through the app

If you like managing everything in one app across many trips, Airalo's approach works well, and its app is polished. If you'd rather buy what you need and get a QR code in your inbox without another account, Travelsim Asia is simpler. Neither requires the passport registration a physical Singapore SIM does.

Worth mentioning: Airalo runs a loyalty program that earns credit toward future eSIMs, and its regional Asia plan covers Singapore plus many neighbouring countries on one eSIM — useful if Singapore is one stop on a wider trip. We don't have a loyalty program; for multi-country trips we offer a separate Malaysia–Thailand–Singapore regional pack.

What's the same

  • Coverage — both run on tier-1 networks that blanket the whole island. No practical difference.
  • Data-only — no Singapore phone number, no SMS. Use WhatsApp or FaceTime for calls.
  • No passport registration — both are roaming eSIMs, so neither needs the ID registration a local physical SIM requires.
  • 5G support — where available and if your phone supports it.
  • Install before you fly — both let you install at home and activate when you land.
  • Top-ups available — add data without buying a whole new eSIM.

So, which one?

Both keep you connected in Singapore with the same coverage. The choice comes down to price and how you like to set things up.

Travelsim Asia might be better if you:

  • Want the cheapest 1 GB, 10 GB, or 20 GB plan
  • Want to buy and go — no app, no account
  • Prefer managing things from a browser instead of an app
  • Want a large 50 GB plan without paying Airalo's premium

Airalo might be better if you:

  • Specifically want an unlimited plan
  • Only need 5 GB for about a week (its $9.00 / 7-day plan)
  • Are visiting several Asian countries on one regional eSIM
  • Travel often and want loyalty rewards in one app

Singapore eSIM from $2.99 — on StarHub, no app, no account, cheapest 1 GB, 10 GB, and 20 GB. In your inbox in minutes.

View Singapore eSIM plans →

Prefer Airalo? No hard feelings — here's their Singapore page. Either way, skip the SIM counter and the passport form.

Dig deeper

Need help? Our support team is available 24/7 via email and live chat. Typical response time: under 1 hour.

Travelsim Asia vs Airalo for Singapore — FAQ

Is Travelsim Asia or Airalo cheaper for Singapore?

Travelsim Asia is cheaper at most sizes. It's $1.01 less at 1 GB ($2.99 vs $4.00, with more than double the validity), $2.01 less at 10 GB, $3.01 less at 20 GB, and $13.01 less at 50 GB. At 5 GB the two are effectively tied at 30 days, though Airalo has a cheaper 5 GB / 7-day plan at $9.00 if you only need a week.

Which networks do Travelsim Asia and Airalo use in Singapore?

Travelsim Asia runs on StarHub. Airalo runs on Singtel and M1. All three are tier-1 Singapore networks with full island coverage, so in practice there's no coverage difference between the two eSIMs — both work everywhere from Changi to Sentosa to the CBD.

Do I need an app for Travelsim Asia or Airalo in Singapore?

Travelsim Asia requires no app and no account — the eSIM arrives by email and is managed via a web portal. Airalo requires downloading its app and creating an account before you can buy and install an eSIM.

Does Airalo offer unlimited data for Singapore?

Yes. Airalo sells unlimited Singapore plans (for example, $27.00 for 7 days and $69.00 for 30 days), with a daily high-speed cap after which speed is reduced. Travelsim Asia does not sell unlimited plans. In WiFi-rich Singapore, a small fixed plan is usually better value than unlimited.

Is an eSIM better than a local SIM at Changi?

For most visitors, yes. Both Travelsim Asia and Airalo are roaming eSIMs that install before you fly, activate on landing, and keep your home number reachable. A physical local SIM requires passport registration by law and a counter queue, and it means swapping out your home SIM.

Which is better for a multi-country Asia trip?

Airalo's regional Asia plan covers Singapore plus many neighbouring countries on one eSIM, which suits a multi-stop trip. Travelsim Asia also offers a Malaysia–Thailand–Singapore regional pack for those specific stops. For a Singapore-only trip, a single-country plan from either is cheaper.