Last updated: October 23, 2026
For a Singapore city break, Travelsim Asia’s 3 GB / 30-day plan at $5.49 is a useful starting point for maps, Grab and messages, with hotel Wi-Fi for video. A light stopover can fit the 1 GB / seven-day plan at $2.99. If you need 5 GB, Nomad costs $9 against our $9.99. We sell eSIMs ourselves; this guide shows where our plans fit and where a competitor costs less.
For central Singapore sightseeing, price, validity and setup are useful ways to narrow the choice. Indoor reception, tunnels and crowded areas can still affect performance, so a network name is not a guarantee of signal everywhere.
At a glance
- Cheapest 1 GB, 3 GB, 30-day 10 GB, 20 GB: Travelsim Asia ($2.99 / $5.49 / $12.99 / $19.99)
- Cheapest 5 GB and 50 GB: Nomad ($9.00 / $31.00)
- Unlimited option to compare: Holafly
- No-app setup: Travelsim Asia
- Multi-country Asia trip: Airalo regional plan, or Travelsim Asia's Malaysia–Thailand–Singapore pack
Competitor prices: 23 October 2026; other provider information: August 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’s compact size makes allowance, validity and setup especially useful comparisons. Singtel, StarHub, M1 and Simba serve the city, but indoor and underground reception still varies by location. Check your chosen plan’s network and 4G/5G access.
For a city visit, start with allowance, validity and setup. Travelsim Asia runs on M1 and Singtel, Airalo on Singtel and M1, Nomad on StarHub and Singtel, Holafly on Singtel, Ubigi on Simba and StarHub, all useful options to compare for the main visitor areas. Alongside coverage at your accommodation, 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), 3 GB ($5.49), 30-day 10 GB ($12.99), and 20 GB ($19.99). Nomad is cheapest at 5 GB ($9.00) and 50 GB ($31.00). 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 can reduce speed after a daily or total high-speed allowance. 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
With Travelsim Asia, you can buy, install, check your balance and top up without an app or account. Your eSIM arrives by email and your personal web portal opens without a login. Airalo, Nomad and Ubigi also offer QR installation outside their apps, so an app is not required just to install those eSIMs. Our roaming eSIM lets you arrange your data before you travel without visiting a local SIM counter.
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? | Setup / management | 1 GB price |
|---|---|---|---|---|
| Travelsim Asia | M1 + Singtel | No — fixed only | Email; no account for balance or top-ups | $2.99 / 7d |
| Airalo | Singtel + M1 | Yes (daily FUP) | QR or app; account for management | $4.00 / 3d |
| Holafly | Singtel | Fair-use terms apply | App optional; web access available | N/A — unlimited only |
| Nomad | Singtel + StarHub | Promotional tiers | QR or app; account for management | $4.00 / 7d |
| Saily | Not disclosed | No | App-based setup and management | $3.99 / 7d |
| Ubigi | Simba + StarHub | Short-stay tiers | QR or app; account for management | $3.00 / 7d |
Competitor prices: 23 October 2026; other provider policies: August 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), 3 GB ($5.49), 30-day 10 GB ($12.99), and 20 GB ($19.99), on both M1 and Singtel, delivered by email and installed straight from the email, 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) 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
Holafly can suit heavy use on your phone if you prefer an unlimited plan, subject to fair-use conditions. Its Singapore hotspot allowance is 1 GB per day, so check that limit if you plan to work on a laptop.
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 account-free management, 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 with generally good coverage around the main visitor areas, that matters less than it would elsewhere.
Ubigi
Good for: short stopovers and light users. Ubigi has a $6.00 / 15-day 3 GB plan 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 account-free usage tracking and top-ups 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, 3 GB, 30-day 10 GB, or 20 GB with no app; Nomad if you want the cheapest 5 GB or 50 GB; Ubigi for a short unlimited stopover; Holafly if its unlimited allowance and fair-use terms fit your usage. For a multi-country Asia trip, an Airalo regional plan or Travelsim Asia's Malaysia–Thailand–Singapore pack covers more ground on one eSIM. Continuing to Bali? Compare one regional eSIM with separate Singapore and Indonesia plans in our Singapore and Bali guide. The Malaysia–Thailand–Singapore pack does not cover Indonesia. Heading over the causeway for more than a day trip? Our Malaysia buyer's guide runs the same comparison for Maxis and CelcomDigi.
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.
- Our roaming eSIM lets you arrange your data before you travel, without visiting a local SIM counter. Local SIM and eSIM registration follows the operator’s requirements.
- 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 generally good around the main visitor areas, so it comes down to price at your data size and how little setup you want. Travelsim Asia is the cheapest at 1 GB, 3 GB, 30-day 10 GB, and 20 GB with no app; Nomad wins 5 GB and 50 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.