Buying a Singapore eSIM on Airalo costs more than it needs to. We put both sites' published prices side by side, plan for plan.
On 9 matching plans altesim.com came out cheaper than Airalo, by 48% to 66%.
How we compared
Both columns are the prices each site published on 11 September 2026, listed in US dollars. We used each site's actual selling price, not a struck-through list price.
Every comparison uses altesim.com's full price, ignoring the 10% site-wide discount it runs one day in three — the strictest reading against ourselves.
A "matching plan" means the same number of days and the same data allowance, with per-day plans compared only against per-day plans.
A detailed comparison: How altesim.com stacks up against Airalo
| Plan | altesim.com | Airalo | You save |
|---|---|---|---|
| 7 days · 10GB total | US$7.77 | US$15 | 48% |
| 15 days · 10GB total | US$7.99 | US$15.5 | 48% |
| 30 days · 10GB total | US$8.21 | US$16 | 49% |
| 15 days · 20GB total | US$11.28 | US$22 | 49% |
| 30 days · 20GB total | US$11.5 | US$23 | 50% |
| 7 days · 5GB total | US$4.22 | US$9 | 53% |
| 15 days · 5GB total | US$3.63 | US$9.5 | 62% |
| 30 days · 50GB total | US$21.99 | US$48 | 54% |
| 7 days · 3GB total | US$2.41 | US$7 | 66% |
When comparing Singapore eSIM plans, altesim.com's prices are significantly lower than Airalo's, with savings ranging from 48% to 66%. For the "3GB total" option, altesim.com charges US$2.41, while Airalo charges US$7, a saving of 66%. This is the widest gap among all the compared plans.
Moreover, the longer the duration, the greater the savings. For the "10GB total" option, the 7-day plan from altesim.com costs US$7.77, while Airalo's is US$15, a saving of 48%. For the 30-day plan, altesim.com charges US$8.21, and Airalo charges US$16, increasing the savings to 49%. This trend holds for other data capacities; for example, the "5GB total" option offers a 53% saving for 7 days and a 62% saving for 15 days.
If you're traveling to Singapore and expect to use between 10GB and 20GB of data, altesim.com's plans are highly suitable. Their prices are nearly half of Airalo's, making them a cost-effective choice for both short and long trips.
How to avoid running out of data with a bulk plan
With a bulk eSIM plan, you don't need to monitor your daily data usage, allowing for more flexibility. In Singapore, activities like checking maps, navigating, uploading photos, and streaming videos tend to consume more data. As a general rule, if you have Wi-Fi at your accommodation and mainly use data for maps and communication, 1GB per day should suffice. However, if you frequently use navigation, upload photos, or watch videos, you might need around 5GB to 10GB per week.
To estimate your data needs, consider the length of your trip and the types of activities you'll be doing. For instance, if you plan to use your phone as a hotspot for friends or stream videos or live streams, you might need around 20GB for a 10-day trip. The advantage of a bulk plan is that after your high-speed data is used up, altesim.com will slow down your connection to 128kbps instead of cutting it off, and it will reset to high speed the next day.
The variety of options on altesim.com's Singapore page
altesim.com's Singapore page offers over 300 plan options, ranging from 1 day to 365 days. Whether you're on a short trip or an extended stay, you'll find a suitable plan. These plans are divided into bulk and daily options, allowing you to choose based on your needs.
In addition to single-country plans, altesim.com also provides multi-country plans that cover Singapore. If you're traveling to multiple countries, these multi-country plans are ideal. altesim.com's website features over 2,300 plans covering 84 destinations, offering a wide range of choices.
How much data do you actually need in Singapore? Three itineraries to consider
Itinerary A: If you're mainly using Wi-Fi at your accommodation and primarily using data for maps and communication, the "10GB total" option is suitable. As a general guideline, this itinerary would use about 1GB of data per day, totaling around 10GB for 10 days.
Itinerary B: If you're frequently using navigation, uploading photos, or watching videos, the "20GB total" option is recommended. This itinerary might use between 5GB and 10GB per week, totaling around 20GB for 10 days.
Itinerary C: If you plan to use your phone as a hotspot for friends or frequently stream videos or live streams, the "20GB total" or "50GB total" options are suitable. This itinerary would use around 20GB for 10 days, and if your trip is longer or you use more data, the "50GB total" option would be more appropriate.
The benefits of choosing altesim.com
altesim.com offers several advantages. Opening an account is free, and buying ten eSIMs will earn you an additional one. Although altesim.com prices are in US dollars, you can choose to pay in your local currency or another currency at checkout, avoiding exchange rate concerns. altesim.com's Singapore plans use the M1, Singtel, and StarHub networks, support 5G, and allow hotspot sharing, ensuring a stable connection wherever you go.
Three things to do before purchasing
Before buying an eSIM, there are three things you should do. First, check if your phone supports eSIM; recent iPhones, Samsung Galaxy S series, and Google Pixel models do, but older phones and some mainland Chinese models may need further verification. Second, see if it's a 10% off day; if so, you can save an additional 10%. Visit altesim.com's Singapore page and compare the prices for that day, as prices on different platforms can vary, ensuring you get the best deal.
Prices are as published on 11 September 2026 and can change at any time; check the page on the day you buy.