Global eSIM Providers in 2026: 7 Scored Out of 100, 4 More Compared, Plus Airalo Alternatives, Saily Competitors and the Pros and Cons

The highest-scoring travel eSIM in 2026 is Ubigi, at 89 out of 100 on six published criteria, with the lowest combined 10GB price of the seven scored (US$15 in Europe, US$16.50 in Japan, US$14 in the USA), followed by Airalo (81), Nomad eSIM (79), Saily (77), Yesim (71), Holafly (66) and aloSIM (61). These are the scores of Uncompromised Travel's September 2026 seven-way comparison, the one set of eSIM scores used across the site. Firsty, JamboSim, Jetpac and Maya Mobile, read for this page on 22 September 2026, have not been through those criteria, so they are compared on what they publish and carry no score. Below are the scores, the alternatives to Airalo and to Saily, the pros and cons as the providers themselves write them and what "security standards" means when nobody will name your network.

Scores from the seven-way comparison, inputs read in the first week of September 2026 · other facts verified 22 September 2026 · provider pricing pages · terms of service and refund policies · company registries

Global eSIM providers compared: 7 scored out of 100

Ubigi scores 89 out of 100, Airalo 81, Nomad eSIM 79, Saily 77, Yesim 71, Holafly 66 and aloSIM 61, on six published criteria, of which price and plan choice weigh most. The four providers read for this page that have not been through these criteria are compared further down, without a score.

Prices are for 10GB over 30 days in US dollars, read on each provider's own plan page in the first week of September 2026, with Nomad eSIM's from its price list of 10 September 2026. Networks and unlimited terms as published on the plan pages that month; Nomad eSIM's confirmed by the company on 17 September 2026.

Score breakdown by criterion

Three things stand out in that table. Price separates the field most, with scores from 8 to 20: Ubigi's 20 comes from a combined 10GB price of US$45.50 across Europe, Japan and the USA, while Holafly's 8 reflects a provider that sells unlimited plans only. Review evidence pulls the other way: Holafly has the largest Trustpilot base of the seven, 4.7 from 110,554 reviews, with the only full score on that criterion. And network transparency is Saily's weakest criterion, 8 of 15, because its plan pages name the network only for Japan. Nomad eSIM's weakest criterion is unlimited terms, at 9 of 15; Yesim scores 6 there because it publishes no full-speed threshold at all.

Airalo eSIM review and alternatives comparison

One provider scores above Airalo on the six criteria: Ubigi, at 89 against Airalo's 81, on lower 10GB prices and named networks in all four test markets; Nomad eSIM (79) and Saily (77) sit just below. Airalo is the largest brand in the category, past 30 million customers as of June 2026. It publishes its plan terms as completely as anyone: top-up on rechargeable eSIMs, data that expires with the validity period, hotspot allowed and a 3GB daily ceiling behind its unlimited plans, throttled to 1 Mbps. Its refund terms are among the most specific in the field. For a Japan trip the gap is disclosure: its Japan page shows SoftBank and "+1 other", where Firsty names all three Japanese carriers outright.

Two cautions before switching away from Airalo on price alone. When read on 22 September 2026, Airalo's Japan page listed unlimited plans only (the September comparison had read a 10GB Japan plan at US$25 earlier that month), so the C$16.50 three-day plan is not comparable with a 5GB tier. You are buying a different thing; if you use under 2GB on a short trip the gigabyte sellers are cheaper. And Airalo's top-up only works on eSIMs it designates rechargeable; where no top-up button appears, its help centre states the eSIM is non-rechargeable or the carrier has changed. If you want the underlying explanation of how any of this works, our guide to choosing an eSIM and what an eSIM costs cover the mechanics without the scoring.

Saily roaming alternatives evaluation

Three providers score above Saily's 77 on the six criteria: Ubigi (89), Airalo (81) and Nomad eSIM (79). All three name more of their networks, because Saily's plan pages name the operator only for Japan. Firsty, which has not been scored, is the alternative for anyone who wants all three Japanese networks named. Saily is a Nord Security product launched on 21 May 2024, trading through Saily UAB in Vilnius for the EEA and a Delaware entity elsewhere. Its published terms are among the most complete in the field: a 180-day activation window, auto top-up on by default, no rollover, hotspot allowed with a bar on excessive tethering, 3 to 5GB a day at full speed depending on destination and a 30-day refund on non-activated plans.

Two things that catch people out when comparing Saily against these. Saily's auto top-up is enabled by default and has to be switched off, which is the opposite of aloSIM, whose terms state in capitals that as at 1 October 2026 it offers no auto top-up feature. And none of these rolls unused data over; that is universal across all eleven providers read for this page, not a Saily limitation. Our guide to how much data you need is the one to read before buying a bigger plan than the trip justifies.

Global eSIM providers security standards comparison

No provider in this field holds a GSMA certification of its own and only Airalo publishes a product-level audit, so the honest comparison is the three things that actually determine your exposure: which network your traffic runs over, which legal entity holds your account and what the terms let that entity do and on all three, Firsty, Ubigi and Saily disclose most. The question people are really asking is who they are handing their connection to. On 22 September 2026 only Firsty named all three Japanese networks; Yesim, which named all three for the September comparison, could not be read that day.

Two specifics worth holding on to. Jurisdiction is not cosmetic: Saily's EEA customers contract with a Lithuanian company and everyone else with a Delaware one and those are different consumer-protection regimes for the same product. And Maya Mobile is registered in the Bahamas while its own listings put operations in New Mexico, with no founding date published anywhere, the thinnest corporate record in the field, despite otherwise solid terms. If you want the connection itself hardened rather than the account, that is a separate question and our note on hotel and airport Wi-Fi is the relevant one.

eSIM pros and cons

The advantages are real and boring, no kiosk, no card swap, your own number stays live and 5GB in Japan for US$7 to US$11 and the disadvantages are all in the terms: no provider assessed rolls unused data over, every daily-capped "unlimited" plan stops full speed at 2 to 5GB a day (Ubigi instead pools 60GB over 30 days), refunds generally stop at activation and four of eleven will not name the network you are being put on. The list below is drawn from what the eleven providers publish about themselves, not from a general argument about the technology.

Two things that catch travellers out specifically. Auto top-up defaults differ in opposite directions, Saily turns it on unless you turn it off, Maya turns it off unless you turn it on and aloSIM does not offer it, so a plan running out mid-trip behaves differently depending on who you bought from. And "activation" is not the same event everywhere: some providers start the clock when you install the profile, others when the eSIM first attaches to a network, which is the single most common cause of a refused refund. Our note on common eSIM problems and the compatibility check cover the failure modes.

Four more providers, compared but not scored

Firsty, JamboSim, Maya Mobile and Jetpac were read for this page on 22 September 2026 but have not been through the six published criteria, so they are named here with their published figures and no score. A provider without a score here has not been assessed on the criteria yet; it is not a judgement on the product. The full record for each, with every source and observation date, sits in the evidence base behind this page.

Three rules for buying a travel eSIM in 2026

1 · Check the daily ceiling before you buy anything sold as unlimited. The published daily ceilings across this field run from 2GB a day (Nomad eSIM) to 5GB a day (Firsty); Ubigi pools 60GB over a 30-day plan instead. Four providers publish no figure at all. On a seven-day trip the difference between a 2GB and a 5GB ceiling is twenty-one gigabytes of full-speed data. An unlimited plan from a provider that will not state the number is a plan whose value you cannot calculate. Work out what you actually need first.

2 · Buy by the gigabyte for short trips and unlimited for long ones, the crossover is around 2GB a day. Japan at 5GB for 30 days costs US$8 to US$10.99 from Ubigi, Nomad, Jetpac and Saily. Japan unlimited for three days costs US$9.99 to C$16.50. If you are a maps-and-messages traveller you will not reach 5GB in a fortnight and the unlimited plans are dead money; if you tether a laptop you will pass it in three days and the gigabyte plans become expensive top-ups. Compare both against your own carrier's roaming rate before assuming an eSIM wins.

3 · Read the refund clause for the word "activated" not the number of days. A 30-day refund window means very little if, as with Airalo, the statutory withdrawal right is voided at activation, or if, as with JamboSim, installation ends the entitlement regardless of usage. The two policies in this field that actually protect a traveller who lands and finds no signal are aloSIM's, which names connectivity issues explicitly and Firsty's, which sets a 72-hour report window and a 24-hour resolution target. Know the failure modes before you need the clause.

What changed for travel eSIMs in 2026

The category moved towards unlimited plans and away from comparability in 2026; four dated changes show it. On 2 June 2026 Airalo announced it had passed 30 million customers, up from around 20 million a year earlier, with unlimited-plan usage up 193% since the third quarter of 2025 and unlimited now available in 150 of its 200-plus destinations, the clearest signal that the category is moving away from the gigabyte model that makes providers comparable (Airalo press release). On 27 May 2026 Saily added airport lounge access across more than 1,000 lounges, fast-track security and ride vouchers, moving a connectivity product into travel benefits (Saily announcement). aloSIM's terms of service carry a dated statement that as at 1 October 2026 it offers no auto top-up feature, a rare case of a provider publishing a forward-dated limitation rather than quietly omitting it. And Yesim's country and policy pages were unreachable throughout 22 September 2026, so its Japan figures could not be re-read for this page that day; its score comes from the September comparison.

On 19 October 2026 this page moved to the scores of the seven-way comparison, the one set of eSIM scores used across Uncompromised Travel. From 22 September to 18 October it had carried a separate set of scores of its own; those are no longer used. Firsty, JamboSim, Jetpac and Maya Mobile, which have not been through the comparison's criteria, now carry no score.