The short answer
Airalo is cheaper than Saily on the two lengths they share, by $0.99 on 15 days ($48 against $48.99) and $2.99 on 30 days ($69 against $71.99). Only Airalo sells 3 days at $11.50 and a week at $26.50, since Saily has no 3-day or 7-day plan. Ringo Light, our third option, is unlimited data at full speed, priced at $13.99 for 2 weeks and $26.99 for 30 days, and it sells no 3-day or 7-day plan.
Unlimited data at full speed: $13.99 for 2 weeks and $26.99 for 30 days. One payment, nothing renews, no app. There is no 3-day or 7-day plan and no bucket.
$11.50 for 3 days, $26.50 for a week, $48 for 15 days and $69 for 30 days of unlimited, 3 GB a day at full speed, then 1 Mbps. 10 GB for 30 days at $15, 20 GB at $24. It rides O2 and Vodafone and needs its app.
$48.99 for 15 days and $71.99 for 30 days of unlimited, 5 GB a day at full speed, then 1 Mbps. 10 GB for 30 days at $14.99, 20 GB at $23.99. It does not name its network and needs its app.
Prices read on 28 September 2026: Airalo, Saily on their own sites or listings, Ringo Light from its catalogue. All in US dollars unless stated. Treat every number as a snapshot.
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The prices, charted
US dollars, 28 September 2026. Ringo Light sells 2 weeks, the rivals 15 days. Airalo: 3 GB a day at full speed, then 1 Mbps. Saily: 5 GB a day at full speed, then 1 Mbps. Ringo Light is unlimited data at full speed. Saily's price is from its listing dated 15 June 2026.
The 30-day plan at each brand. Ringo Light is unlimited data at full speed.
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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- 2 weeks $13.99
- 30 days $26.99
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Airalo vs Saily in one paragraph
Airalo is cheaper than Saily where they overlap, by $0.99 on 15 days and $2.99 on 30. Only Airalo sells 3 days and a week here. Buckets are almost a tie: Saily's 10 GB and 20 GB are each a cent under Airalo's. Airalo gives 3 GB a day at full speed, then 1 Mbps; Saily gives 5 GB a day at full speed, then 1 Mbps. For two weeks or a month of unlimited, neither is the cheapest: Ringo Light is $13.99 and $26.99, unlimited data at full speed.
Price: the same trip at each
Prices are in US dollars, taken on 28 September 2026. For 15 days Airalo is $48 and Saily $48.99, which puts Airalo $0.99 lower. For 30 days it is $69 against $71.99, $2.99 lower. Airalo's 3 days at $11.50 and week at $26.50 have no Saily equivalent, because Saily has no 3-day or 7-day plan, so we leave them out. One caution: Saily's listing is from 15 June 2026, not the pricing day, because saily.com refused the fetch, so read its prices with that in mind.
Ringo Light is cheaper than both on the two lengths it sells. Two weeks is $13.99, under 15 days at either brand ($48 and $48.99) and under Airalo's single week at $26.50, with a week spare. Thirty days is $26.99, against $69 and $71.99. There is no 3-day plan, so for a long weekend a brand that sells one is the buy.
Both brands sell buckets, and the prices are almost the same. Airalo has 10 GB for 30 days at $15 and 20 GB at $24; Saily has 10 GB at $14.99 and 20 GB at $23.99. Ringo Light has none. Our 2 weeks at $13.99 is less than either 10 GB bucket, but it is unlimited data at full speed and ends after 2 weeks. For 20 GB that lasts a month, Airalo at $24 and Saily at $23.99 are both cheaper than our 30 days at $26.99. We would rather you read that here than at checkout.
What unlimited means at each
Airalo's unlimited for Czechia, the Prosim plan, gives 3 GB a day at full speed and then 1 Mbps. Saily's gives 5 GB a day at full speed and then 1 Mbps. Both cope with maps, messages and photos; HD streaming all evening or a laptop on the hotspot is where a daily limit starts to bite. Ringo Light is unlimited data at full speed for the whole trip. Fair use policy, see Terms.
Networks and coverage in Czechia
Czechia has three networks: O2, T-Mobile and Vodafone, and none of the brands here names T-Mobile. All three cover Prague, the other cities and the main rail and road routes well, with 5G in the cities. Coverage thins in the border mountains and forests, and Holafly names the Krkonose, Sumava and Bohemian Switzerland on its own page. Airalo lists O2 and Vodafone. Saily does not name its network on its listing, and Ringo Light uses a local partner network.
Czechia is in the EU but keeps its own money, the koruna. A home plan from an EU country usually roams there at home prices, so you may not need a travel eSIM at all. A Czechia plan stops at the border, so for a trip that goes on to Vienna, Dresden or Krakow a Europe plan is the better buy.
Installation and app
Airalo and Saily both make you buy and install inside their apps. Ringo Light needs no app: the eSIM arrives by email in seconds and installs in one scan. Whichever you pick, install at home before you fly and switch on data when you land.
The cheaper third option: Ringo Light
Ringo Light is our own data eSIM. For Czechia it sells two trips, all unlimited data at full speed: 2 weeks at $13.99 and 30 days at $26.99. You pay once, nothing renews, and there is no app.
It is not for everyone. There are no buckets, no 3-day plan, no 7-day plan and no phone number, and calls go over apps that use data. If you want a fixed bucket that lasts 30 days, Airalo and Saily sell it. For two weeks or a month of unlimited data at full speed, Ringo Light is the cheapest of the three.
Every brand we price for Czechia is in the full comparison at /blog/best-esim-for-czechia, all on the same day. The card to buy Ringo Light is further up this page, after the side-by-side table.
Which to pick
- Airalo, if you want unlimited for 15 days and 30 days and are choosing between the two. $48 against $48.99 for 15 days, and $69 against $71.99 for 30.
- Airalo, if you want 3 days. $11.50 for 3 days of unlimited; Saily has no 3-day plan.
- Airalo, if you want a week. $26.50 for 7 days of unlimited; Saily has no 7-day plan.
- Airalo and Saily, if you want a bucket. Airalo: 10 GB for 30 days at $15, 20 GB at $24. Saily: 10 GB at $14.99, 20 GB at $23.99. Ringo Light has no bucket.
- ✓Ringo Light, if the trip is two weeks or a month. Unlimited data at full speed for $13.99 or $26.99, under any 15-day or 30-day plan these two sell and under Airalo's 7 days at $26.50.
Pick by trip
Airalo's 3 days at $11.50. Ringo Light sells no 3-day plan, but its 2 weeks at $13.99 covers you if the trip might run longer.
Ringo Light, 2 weeks, $13.99. A week at Airalo is $26.50, so you pay less and keep a week spare.
Ringo Light at $13.99, against $48 at Airalo and $48.99 at Saily for 15 days.
Ringo Light, 30 days, $26.99, against $69 at Airalo and $71.99 at Saily.
Airalo's 10 GB at $15 or Saily's at $14.99, both for 30 days. Ringo Light sells no buckets.
Frequently asked questions
How we compared, and our sources
Airalo, Saily, Ringo Light
We priced Airalo, Saily and Ringo Light for Czechia on 28 September 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: Holafly, Nomad and Ubigi. They sell Czechia too and are priced on the same day in the full comparison at /blog/best-esim-for-czechia. This page answers one question, Airalo or Saily, so it keeps to those two and the cheaper third option.
- Airalo: www.airalo.com/czech-republic-esim?currency=USD, unlimited and buckets in dollars on the site, 28 September 2026
- Saily: esimdb.com/czechia/saily, listing dated 15 June 2026; saily.com refused the fetch
- Ringo Light: our own catalogue, the prices the checkout charges on 28 September 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.
