The short answer
You carry AT&T or Verizon and you have a flight to Changi, and the question is whether to roam or buy an eSIM. I read both carriers' pages on 31 October 2026, then set them against five travel eSIMs and Ringo Light, priced the same day. For a layover where I want no setup, I would roam. For a stay of a few days or more I would buy Ringo Light, and keep my own SIM in the phone for calls.
Unlimited data at full speed for 2 weeks at $17.99 or 30 days at $29.99, paid once, nothing renews. Airalo asks $48 for 15 days and $69 for the month, and a carrier day pass comes to $168 and $360.
If you only need maps and rides: 10 GB for 30 days at $13 on StarHub and Simba, and 20 GB at full speed for 7 days at $19, then 2 Mbps.
A bucket for a light visitor: 20 GB for 30 days at $21 and 10 GB at $14, on StarHub and Singtel.
3 days of unlimited at $11.50 on Singtel, with 3 GB a day at full speed, then 1 Mbps.
Prices read on 31 October 2026: Airalo, Holafly, Saily, Nomad, Ubigi, AT&T, Ringo Light, Verizon on their own sites or listings, Ringo Light from its catalogue. All in US dollars unless stated. Treat every number as a snapshot.
See the full price index for every country.
Travelling further? Compare the best eSIM for Asia and the eSIM for Asia-Pacific.
The prices, charted
US dollars, 31 October 2026. The rivals sell 15 days, Ringo Light 2 weeks. Ubigi's 15 days is 30 GB at full speed, then 2 Mbps. Nomad sells no 14 or 15-day unlimited.
The 30-day plan at each brand. Ringo Light is unlimited data at full speed. Ubigi's month is 60 GB at full speed, then 2 Mbps. Nomad stops at 10 days.
Holafly sells no buckets. Ringo Light sells no bucket either: its 2 weeks is unlimited and lasts 2 weeks, not 30 days.
Side by side
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Get Ringo Light for Singapore, from $8.99.
Installed once, next to your own SIM. Your eSIM arrives by email in seconds.
- 3 days $8.99
- 2 weeks $17.99
- 30 days $29.99
We sell data eSIMs for now to fund the full Ringo service. Ringo is self funded. Every plan bought here pays for the build of one plan that works everywhere.
Want to keep your own number abroad?
That is the full Ringo service: one plan that works everywhere, with your own number included.
It is a separate product from Ringo Light and it is still being built, so it is not on sale yet. Join the waitlist to hear when it opens.
What to see in Singapore, and what your phone needs for it
Eight places most first trips include, from Marina Bay to Sentosa and Changi, with the one thing your data does for you at each. Singapore is small, and all eight are on the MRT or a short ride from it.
Roam with your carrier, or buy an eSIM
AT&T's International Day Pass is $12 a day in Singapore, $168 for two weeks and $360 for a month, read 31 October 2026. Verizon TravelPass lists Singapore at the same $12 a day on the same date. Three days is $36 on either. Ringo Light is $8.99 for 3 days, $17.99 for 2 weeks and $29.99 for 30 days, unlimited data at full speed, paid once.
Against the cheapest rival, the carrier gap stays wide. For about two weeks, Ubigi asks $35 for a fixed 30 GB and Airalo $48. For a month, Ubigi asks $49 and Airalo $69. For 3 days, Airalo asks $11.50. Ringo Light's 2 weeks is $150.01 under either day pass, and its 30 days is $330.01 under.
Here is what the carrier wins, and I would not wave it away. Your own number keeps ringing, calls and texts are included, and there is nothing to install. Both bill only for days the phone is used in Singapore. On price alone, Ringo Light's 3 days at $8.99 already costs less than one day of the pass, so I would roam only for a layover where I want no setup at all.
AT&T adds $6 a day for each additional line used on the same calendar day. Two phones on one account for two weeks is $252 on that pass, against $35.98 for two Ringo Light eSIMs, which is worth a pencil before you fly.
Networks in Singapore, and what changes for a visitor from the United States
Singapore has four mobile networks: Singtel, StarHub, M1 and Simba. The island is small and dense, and all four cover the city, the MRT underground and Changi well. Signal can drop inside thick buildings and on outlying islands such as Pulau Ubin. In the table, Airalo and Holafly ride Singtel, Nomad StarHub and Singtel, and Ubigi StarHub and Simba. Ringo Light rides a local partner network. For a city trip I would not choose on network.
For a visitor, the difference is how the data is billed. AT&T and Verizon charge per day of use, on the line you already pay for. Verizon says each 24-hour session carries 5 GB at high speed, then unlimited data at 3G speeds. AT&T describes unlimited high-speed data when the pass sits on an Unlimited Plan, with the terms of your own plan applying. The eSIMs are bought ahead and run for a set number of days.
Many visitors cross the Causeway to Johor Bahru or go on to Malaysia. A Singapore plan, Ringo Light included, stops at the border. If your trip continues into Malaysia, I would look at a regional plan: Airalo, Nomad and Ubigi all sell plans that cover Singapore and Malaysia together. Neither carrier page I read shows a monthly plan for Singapore, so I priced the month as thirty days at $12.
If you want a data bucket: Ubigi or Nomad
- Ubigi, $13 for 10 GB. The cheapest 10 GB for 30 days, on StarHub and Simba with 5G. Its 20 GB at $16 a month renews until you stop it, and the one-off 25 GB for 30 days is $22. Either is far under a day pass for a light user.
- Nomad, $14 for 10 GB. The cheapest 20 GB that does not renew, at $21 for 30 days, on StarHub and Singtel.
- Saily, $15.99 for 10 GB. 20 GB comes to $22.99. Its listing is dated 4 October 2026, because saily.com refused my fetch.
- Airalo, $16 for 10 GB. Its Connect Lah plan on Singtel, 20 GB for $23, with smaller buckets too.
- ✓Ringo Light, no buckets. Ringo Light is unlimited, $17.99 for 2 weeks and $29.99 for 30 days. For 10 GB that lasts a month, Ubigi at $13 and Nomad at $14 are cheaper, and for 20 GB all four rivals above cost less than the Ringo Light month. I would buy Ringo Light for unlimited, not for a bucket.
What Ringo Light is
Ringo Light is Ringo's own data eSIM, and I write for Ringo, so weigh my verdict with that in mind. It is sold to fund the full Ringo, one plan that works everywhere with your own number ported onto it. For Singapore it sells three trips, all unlimited data at full speed: 3 days at $8.99, 2 weeks at $17.99 and 30 days at $29.99. Nothing renews. The eSIM arrives by email and installs in one scan, no app.
It sits next to your own SIM, so your number still rings for calls and texts if you leave roaming on for those, which both carriers say they include. I would use the eSIM for data and let the carrier handle the rest.
The card to buy it is further up this page, just after the side-by-side table.
Pick by trip
I would buy Ringo Light 3 days at $8.99, which is under one day of the pass at $12. If you want nothing to install, roaming is the easy answer.
I would buy Ringo Light for Singapore at $17.99, against $168 on either day pass, and a regional plan if you cross the Causeway.
I would buy Ringo Light, $29.99. The carriers come to $360, and the cheapest rival month is Ubigi at $49.
My pick is Ubigi 10 GB for 30 days at $13, if you will mostly use maps and rides.
I would keep the carrier SIM in the phone with roaming on for calls, and put the data on Ringo Light.
AT&T adds $6 a day for the second line. Two Ringo Light eSIMs for two weeks are $35.98, still far under $168 for one phone.
Frequently asked questions
How we compared, and our sources
Airalo, Holafly, Saily, Nomad, Ubigi, AT&T, Ringo Light, Verizon, Ringo Light
We priced Airalo, Holafly, Saily, Nomad, Ubigi and Ringo Light for Singapore on 31 October 2026, all on the same day, in US dollars. Each rival's price comes from its own website where it showed dollars, otherwise from an esimdb.com listing, and every source and its date is listed below. Ringo Light's prices come from the catalogue our checkout charges.
We compare the trips people actually book: a week, two weeks and a month of unlimited data, and a 10 GB bucket. We read each brand's fair use and speed rules and quote them as the brands state them. We did not run speed tests, so this page makes no speed claims for any brand.
Ringo Light is our own product. We put it in the table on the same terms as everyone else, and where a rival is the better buy the page says so.
Left out: Maya Mobile. We could not read its own prices for this country on the day, so it stays out rather than being guessed.
- Airalo: www.airalo.com/singapore-esim?currency=USD, unlimited in dollars on the site, 31 October 2026; buckets and the daily cap from esimdb.com/singapore/airalo, listing dated 28 October 2026; the site names Singtel and one more network
- Holafly: esim.holafly.com/esim-singapore/, prices in dollars and network on the site, 31 October 2026
- Saily: esimdb.com/singapore/saily, listing dated 4 October 2026; saily.com refused the fetch
- Nomad: esimdb.com/singapore/nomad, dollar prices and the daily cap from the listing dated 25 October 2026; networks from nomadesim.com, 31 October 2026
- Ubigi: esimdb.com/singapore/ubigi, listing dated 28 October 2026; networks from cellulardata.ubigi.com, 31 October 2026
- AT&T: www.att.com/international/day-pass/, International Day Pass price, additional lines and what it includes, with the destination list at att.com/support/article/wireless/KM1395068/ showing Singapore, read 31 October 2026
- Ringo Light: ringoesim.com/singapore, the catalogue the checkout charges, read the same day
- Verizon: www.verizon.com/support/travelpass-faqs/, TravelPass FAQ for the daily fee, the 5 GB a day allowance and billing on days used, and the TravelPass countries list at verizon.com/plans/travelpass-countries/ for Singapore at $12 per day, read 31 October 2026
- Ringo Light: our own catalogue, the prices the checkout charges on 31 October 2026.
Written and priced by the Ringo team. Prices change often; if you spot one that has moved, tell us through the contact page and we will update the table.
