Best eSIM for Singapore (2026) — A Buyer's Guide From an Actual Provider
Last updated: July 23rd, 2026
Most "best eSIM for Singapore" guides are written by travel blogs earning affiliate commissions. We sell eSIMs ourselves — so we're biased too. The difference is that we'll show you the criteria that actually matter in Singapore, compare the major providers honestly, and tell you where a competitor beats us.
Singapore is one of the simplest eSIM destinations there is. Every network covers the whole island, so the usual coverage worry doesn't apply. That makes the decision refreshingly narrow: price at your data size, whether you want fixed or unlimited, and how little hassle you want at setup.
At a glance
- Cheapest 1 GB, 10 GB, 20 GB: Travelsim Asia ($2.99 / $13.99 / $19.99)
- Cheapest 5 GB and 50 GB: Nomad ($9.00 / $31.00)
- Cheapest 3 GB: Ubigi ($6.00)
- Best truly unlimited: Holafly
- No-app setup: Travelsim Asia
- Multi-country Asia trip: Airalo regional plan, or Travelsim Asia's Malaysia–Thailand–Singapore pack
Based on publicly listed info, July 2026. Prices and policies can change.
Why coverage isn't a criterion in Singapore
In most countries, the first question is which network an eSIM uses, because coverage varies by region. Singapore removes that question. It's a compact city-state where all four networks — Singtel, StarHub, M1, and Simba — deliver strong 4G and 5G across the entire island, including the MRT underground.
So you can stop worrying about carrier maps. Travelsim Asia runs on StarHub, Airalo on Singtel and M1, Holafly and Nomad on Singtel and StarHub, Ubigi on Simba and StarHub, and every one of them works from Changi to Sentosa to the CBD. With coverage settled, the four criteria below are what actually separate a good choice from a wasteful one.
The 4 things that actually matter
1. Price at the size you'll actually use
Singapore is a light-data destination, so the amount you need is small, and prices at those small sizes vary more than you'd think. Travelsim Asia has the cheapest 1 GB ($2.99), 10 GB ($13.99), and 20 GB ($19.99). Nomad is cheapest at 5 GB ($9.00) and 50 GB ($31.00). Ubigi is cheapest at 3 GB ($6.00). Match the provider to the size you need rather than assuming one is cheapest across the board.
2. Fixed data or unlimited
Fixed plans give you a set amount at full speed. Unlimited plans cost more and, apart from Holafly, throttle after a daily cap. Because Singapore has WiFi almost everywhere — hotels, malls, the MRT, cafés, and Changi — most visitors use very little cellular data, so a small fixed plan is usually the better deal. Unlimited earns its price only if you stream or hotspot heavily on cellular rather than WiFi.
3. Setup friction: app, account, and registration
Some providers make you download an app and create an account before you can install the eSIM. Travelsim Asia delivers by email with no app and no account. And unlike a physical local SIM — which Singapore law requires you to register with your passport — every eSIM here skips registration entirely. If you want the least hassle, that combination of no-app plus no-registration is the smoothest path from purchase to online.
4. Top-ups and validity
If you underestimate, can you add data easily, or do you have to buy a whole new eSIM? Travelsim Asia tops up through a web portal with no login. Also check validity against your trip: Airalo's 1 GB lasts only 3 days, while Travelsim Asia, Nomad, Saily, and Ubigi give 1 GB a 7-day life for a similar price.
Singapore eSIM providers compared
Here's how the major providers stack up. No rankings — just facts you can verify on each provider's website.
| Provider | Network(s) | Unlimited? | App required | 1 GB price |
|---|---|---|---|---|
| Travelsim Asia | StarHub | No — fixed only | No — email delivery | $2.99 / 7d |
| Airalo | Singtel + M1 | Yes (daily FUP) | Yes | $4.00 / 3d |
| Holafly | Singtel + StarHub | Yes — no daily throttle | Optional | N/A — unlimited only |
| Nomad | Singtel + StarHub | Promotional tiers | Yes | $4.00 / 7d |
| Saily | Not disclosed | No | Yes | $3.99 / 7d |
| Ubigi | Simba + StarHub | Short-stay tiers | Yes | $3.00 / 7d |
Prices and policies checked July 2026. Verify on the provider's website before purchasing. Travelsim Asia is our own product.
When each provider makes sense
Travelsim Asia
Good for: visitors who want the cheapest small-to-mid plan with no app and no account. We're the cheapest at 1 GB ($2.99), 10 GB ($13.99), and 20 GB ($19.99), on StarHub, delivered by email and installable in any browser, with web-portal top-ups. That suits the typical week-long Singapore trip well. Less ideal for: travelers who want unlimited data (we don't sell it), a 3 GB plan (we don't offer that size — Ubigi does at $6.00), or the very cheapest 5 GB or 50 GB (Nomad wins both). This is our product, so weigh the bias.
Airalo
Good for: travelers who want a well-known app and, especially, those visiting several Asian countries on one eSIM — Airalo's regional Asia plan covers Singapore plus many neighbours. Its Singtel and M1 networks are excellent, and it offers unlimited tiers if you want them. Less ideal for: a Singapore-only trip on price. Airalo has the most expensive small plans here ($4.00 for 1 GB / 3 days), and its 10 GB ($16.00) and 20 GB ($23.00) sit at the top of the range.
Holafly
Good for: heavy users who want genuinely unlimited data with no daily throttle and would rather not track usage — useful if you're streaming or hotspotting a laptop all day on cellular. Less ideal for: almost everyone else in Singapore. At about $4/day, a week costs $27.50, versus $9.99 for a Travelsim Asia 5 GB plan that a WiFi-rich city like Singapore rarely exceeds. Holafly is good value only where its unlimited model is genuinely needed, which is rare here.
Nomad
Good for: travelers who want the lowest price on the larger plans. Nomad has the cheapest 5 GB ($9.00) and 50 GB ($31.00) in this comparison, and the lowest cost per GB overall ($0.62/GB at 50 GB) on Singtel and StarHub. Less ideal for: anyone who wants to avoid apps, since Nomad requires one, or who needs a 1 GB plan, where it isn't the cheapest.
Saily
Good for: travelers who like a polished app from the NordVPN team and simple pricing. Less ideal for: value hunters — Saily sits mid-range at every size and is never the cheapest. It also doesn't disclose its Singapore network, though in a city where every network covers everything, that matters less than it would elsewhere.
Ubigi
Good for: short stopovers and light users. Ubigi has the cheapest 3 GB plan ($6.00 / 15 days) and a neat $9.00 / 2-day unlimited tier that fits a layover well, running as a full MVNO on Simba and StarHub. Less ideal for: travelers who want no app (it requires one) or the cheapest large plan, where Nomad and Travelsim Asia lead.
The honest shortlist for a Singapore-only trip: Travelsim Asia if you want the cheapest 1 GB, 10 GB, or 20 GB with no app; Nomad if you want the cheapest 5 GB or 50 GB; Ubigi for a cheap 3 GB or a short unlimited stopover; Holafly only if you truly need uncapped data. For a multi-country Asia trip, an Airalo regional plan or Travelsim Asia's Malaysia–Thailand–Singapore pack covers more ground on one eSIM.
Singapore-specific things to know
- You'll use less data than you expect. Free WiFi is everywhere — hotels, malls, the MRT, most cafés, and all of Changi. Between WiFi spots you mostly need Grab, Google Maps, and messaging, which is light. Many visitors finish a week on 3 to 5 GB.
- Grab runs transport and more. Grab is the main ride-hail app and also handles food delivery and some payments. The MRT is fast, cheap, and easy with a contactless card, but Grab is handy for late arrivals and luggage. Install it before you fly.
- Local SIMs need your passport. Buying a physical prepaid SIM at Changi means registering it with ID by law. An eSIM skips that step completely — nothing to register, nothing to swap.
- Changi has excellent free WiFi. Even before you switch your eSIM on, you can get online at the airport to book a ride. Enable your eSIM before you leave the terminal so you're covered from the taxi stand onward.
- Transiting without leaving the airport? If you're only changing flights and staying airside, Changi's free WiFi may be all you need. Buy an eSIM if you're heading into the city, even for a long layover.
How much data do you actually need?
Singapore is light on data for most visitors. Between widespread WiFi and short distances, cellular use stays low unless you stream or hotspot heavily.
| Trip type | Daily usage | Recommended plan |
|---|---|---|
| Stopover or 1–2 days, light | 200–400 MB | 1 GB |
| A few days, Grab + maps + social | 400–700 MB | 3–5 GB |
| A week, regular use | 500 MB–1 GB | 10 GB |
| Long stay, streaming or hotspot on cellular | 1.5 GB+ | 20 GB+ |
Most visitors land in the middle. A 5 GB plan covers a few days comfortably, and 10 GB gives a full week of headroom — especially with hotel and mall WiFi handling the heavy tasks.
Dig deeper
- Singapore eSIM Prices 2026 — every provider and size compared on price, with per-GB rates.
- Travelsim Asia vs Airalo Singapore eSIM — head-to-head on the two most popular options.
- How to Buy and Install a Singapore eSIM — step-by-step setup for iPhone and Android, with Changi activation.
The bottom line
Singapore makes the eSIM choice easy. Coverage is a solved problem, so it comes down to price at your data size and how little setup you want. Travelsim Asia is the cheapest at 1 GB, 10 GB, and 20 GB with no app; Nomad wins 5 GB and 50 GB; Ubigi wins 3 GB; Holafly is for the rare heavy-unlimited user. Pick the size you need, match it to the cheapest provider at that size, and you'll do better than any affiliate ranking can do for you.
Not sure which plan fits your trip? Our support team is available 24/7 by email and live chat.