Last updated: October 23, 2026
For Singapore, Travelsim Asia has the lowest prices here at 1 GB / seven days ($2.99), 3 GB / 30 days ($5.49), 10 GB / 30 days ($12.99) and 20 GB / 30 days ($19.99). Nomad leads at 5 GB for $9 and 50 GB for $31, both over 30 days. A stopover needs a different allowance from a month of hotspot use, so buy for your trip rather than the lowest cost per gigabyte.
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.
Cheapest Singapore eSIM at each size (October 2026)
- 1 GB: Travelsim Asia, $2.99 / 7 days (Ubigi $3.00 one cent back)
- 3 GB: Travelsim Asia, $5.49 / 30 days (Ubigi $6.00 / 15 days)
- 5 GB: Nomad, $9.00 / 30 days (Travelsim Asia and Saily tie at $9.99)
- 10 GB: Travelsim Asia, $12.99 / 30 days (Ubigi $13.00 one cent back)
- 20 GB: Travelsim Asia, $19.99 / 30 days (Nomad $21.00)
- 50 GB: Nomad, $31.00 / 30 days ($0.62/GB, lowest rate among the plans compared here)
- Lowest sticker price among the providers compared here: Travelsim Asia 1 GB at $2.99
Competitor comparison: 23 October 2026 on provider websites.
Cheapest Singapore eSIM by plan size (full breakdown)
The cheapest plan at each size, with the runner-up beside it so you can see how close the call is. Travelsim Asia takes 1, 3, 10 and 20 GB. Nomad is cheaper at 5 GB and 50 GB, and we would rather say so than pretend otherwise. All figures are USD.
| Data | Cheapest | Price | Validity | Runner-up |
|---|---|---|---|---|
| 1 GB | Travelsim Asia | $2.99 | 7 days | Ubigi at $3.00 / 7d |
| 3 GB | Travelsim Asia | $5.49 | 30 days | Ubigi at $6.00 / 15d |
| 5 GB | Nomad | $9.00 | 30 days | Travelsim Asia at $9.99 / 30d |
| 10 GB | Travelsim Asia | $12.99 | 30 days | Ubigi at $13.00 / 30d |
| 20 GB | Travelsim Asia | $19.99 | 30 days | Nomad at $21.00 / 30d |
| 50 GB | Nomad | $31.00 | 30 days | Travelsim Asia at $34.99 / 30d |
Competitor comparison: 23 October 2026. Validity is the plan window, which matters as much as the headline price on the shorter tiers. Every provider's full plan list, including the unlimited options, is in our Singapore eSIM price guide.
Travelsim Asia holds the lowest Singapore price at 1 GB, 3 GB, 30-day 10 GB, and 20 GB, and its eSIM includes access to M1 and Singtel. Nomad wins the other two sizes outright: $9.00 for 5 GB and $31.00 for 50 GB, the latter also the cheapest per gigabyte you can buy for Singapore. No single provider is cheapest across the board, us included.
Cheapest Singapore eSIM for a short stopover
Plenty of people touch down in Singapore for a day or two between flights. For that, 1 GB covers a Grab from Changi, maps, chat, and a little browsing. The lowest 1 GB price is Travelsim Asia at $2.99 for 7 days, with Ubigi a single cent higher at $3.00. Saily sits at $3.99, and both Airalo and Nomad ask $4.00. Airalo's version also expires after 3 days rather than 7, so if your layover slips a day, that one can lapse before you have used it.
Cheapest Singapore eSIM for a few days in the city
Three to five days of ordinary use, hopping between hawker centres, Sentosa, and the CBD with hotel WiFi filling the gaps, tends to land around 3 to 5 GB. At 3 GB the lowest full-month price is Travelsim Asia at $5.49 for 30 days. Ubigi's $6.00 looks close but runs only 15 days, and Nomad's $6.50 matches the month. Step up to 5 GB and the crown moves: Nomad at $9.00 for 30 days beats the $9.99 that Travelsim Asia and Saily both charge. It is a dollar, so no-app delivery or a network preference can still tip it back the other way.
Cheapest Singapore eSIM for a week or longer
A full week of heavier use, or a longer stay with some remote work, usually calls for 10 or 20 GB. Travelsim Asia leads both sizes with 30-day validity. For a seven-day trip, Ubigi’s 10 GB plan costs less at $11. Our 10 GB plan is $12.99 for 30 days, edging Ubigi's $13.00 by a penny, with Nomad at $14.00 and Saily at $15.99 behind them. At 20 GB it is $19.99, the only sub-$20 option at that size, ahead of Nomad's $21.00. Ubigi has no 20 GB tier, though its 25 GB plan at $22.00 is the per-GB rival worth a look if you genuinely need the extra headroom.
Cheapest Singapore eSIM per GB
Measured in dollars per gigabyte, the biggest plans always look best. Here is each provider's strongest per-GB rate:
| Provider & plan | Price | Per GB |
|---|---|---|
| Nomad 50 GB / 30d | $31.00 | $0.62 |
| Travelsim Asia 50 GB / 30d | $34.99 | $0.70 |
| Ubigi 25 GB / 30d | $22.00 | $0.88 |
| Airalo 50 GB / 30d | $48.00 | $0.96 |
| Travelsim Asia 20 GB / 30d | $19.99 | $1.00 |
| Nomad 20 GB / 30d | $21.00 | $1.05 |
Per-GB math only rewards you if you actually finish the plan. Buy 50 GB for a four-day city break and burn 8 of it, and that flattering $0.62 quietly becomes about $3.90 for every gigabyte you touched. Singapore is a light-data place, so pick the size your trip really uses, then find the cheapest plan at that size. Our full Singapore price breakdown lays out every tier and unlimited option side by side. Competitor comparison: 23 October 2026.
Does the cheapest Singapore eSIM mean weaker coverage?
In most countries that worry is fair. In Singapore it barely registers. The island is roughly the footprint of a mid-size city, and SingTel, StarHub, M1, and Simba each carry strong 4G and 5G over the entire place, MRT tunnels and mall basements included. So a cheap plan on one carrier is not a compromise on where your phone works.
Travelsim Asia includes M1 and Singtel. Airalo lists the same pair, Nomad lists StarHub and Singtel, Ubigi lists Simba and StarHub, and Saily does not disclose its network. We will be honest about what that dual setup buys you in Singapore, though. It is redundancy, a fallback if one carrier has a bad moment, not a coverage necessity. A single-network plan can suit a city trip; check reception at the places that matter to you.
Value traps: when a low price is not the low price
- Short-validity bargains. Airalo's cheapest 1 GB runs 3 days and its low 3 GB tier caps at 7. Ubigi lists a $11.00 10 GB, but it lasts only 7 days against the 30-day $13.00 you actually want to compare. A price that expires early is not a price you keep.
- Unlimited with a daily leash. Airalo's unlimited slows once you pass roughly 3 GB in a day; Saily's throttles to about 1 Mbps after 5 GB a day. The word "unlimited" hides a speed ceiling, so read the daily allowance before you count on it.
- Holafly’s package totals. Holafly sells only unlimited, priced for the selected duration; a 30-day package costs $76.50, the most expensive way to cover a month in a city where WiFi is everywhere. It suits heavy daily streamers who accept its fair-use terms, and few others.
- The panic rebuy. Running dry mid-trip and grabbing a second eSIM in a hurry is the priciest way to travel. A plan you can top up in a browser, no login, keeps a small starter plan a safe pick rather than a gamble.
Cheapest Singapore eSIM with no app to install
Every provider in this comparison but one asks you to download an app and open an account before the eSIM will work. Travelsim Asia is the exception. The eSIM lands in your inbox, installs from a QR code or a tap-to-install link in the browser, and tops up through a web portal with nothing to sign into. Since it also leads on price at 1 GB, 3 GB, 30-day 10 GB, and 20 GB, the cheapest and the simplest option are frequently the same purchase in Singapore.
The quick take: Travelsim Asia is cheapest at 1 GB ($2.99), 3 GB ($5.49), 30-day 10 GB ($12.99), and 20 GB ($19.99), on M1 and SingTel together with no app. Nomad wins 5 GB ($9.00) and 50 GB ($31.00), and its 50 GB is the lowest cost per gigabyte among the plans compared here at $0.62. For the main city stops, compare price and setup alongside reception at your accommodation.
Final verdict: which is the cheapest Singapore eSIM?
For the trips most visitors take, a stopover through to a busy week, the lowest price is usually Travelsim Asia: $2.99 for 1 GB, $5.49 for 3 GB, $12.99 for 30-day 10 GB, or $19.99 for 20 GB, all on two carriers with nothing to install past the eSIM itself. If your trip sits squarely at 5 GB, or you want a data-heavy month, Nomad is the honest pick: $9.00 for 5 GB and $31.00 for 50 GB are genuinely better deals than ours at those sizes. Match the plan to your real usage first, then take the cheapest name in that row. That is the whole answer, and no provider owns every row.
Dig deeper
- Singapore eSIM Prices 2026: every provider's full price ladder, fixed and unlimited, in one place.
- Best eSIM for Singapore (2026): the buyer's guide, where networks and setup sit alongside the price question.
- How to Buy and Install a Singapore eSIM: from checkout to connected, step by step for iPhone and Android.
Unsure which size fits your trip? Our support team answers by email and live chat around the clock.