Global eSIM Providers in 2026: 11 Scored Out of 100, Plus Airalo Alternatives, Saily Competitors and the Pros and Cons

The best-documented travel eSIM in 2026 is Saily, at 89/100 — US$10.99 for 5GB in Japan, KDDI and SoftBank named before you pay, and a 3 to 5GB daily ceiling published behind its unlimited plans — followed by Firsty (87), Nomad (84), Airalo (81), Ubigi (78) and aloSIM (77). Eleven providers were scored against six published criteria worth 100 points, every input read at source and dated. Holafly, the second-biggest name in the category, finishes seventh at 75 and is not in the index. Below: the full scoring, the alternatives to Airalo and to Saily, what "security standards" actually means when nobody will name your network, and the pros and cons as the providers themselves write them.

Verified 22 September 2026 · provider pricing pages · terms of service and refund policies · company registries · every figure re-read at source

Global eSIM providers compared: 11 scored out of 100

Score breakdown by criterion

Three things fall out of that table. First, nobody wins on network disclosure except Firsty, and Firsty is the provider that then refuses to publish a support hour or an email address — the two highest-scoring criteria in the field are held by companies that fail badly somewhere else. Second, price transparency is not the differentiator the category thinks it is: five of six ranked providers score 16 or better, because publishing a price is easy. Third, the criterion that actually decides the order is plan mechanics. Every provider that publishes all five mechanics — validity, top-up, rollover, hotspot and a fair-use number — finishes in the top four. Every provider that leaves one out finishes below them. Holafly, seventh at 75, misses on exactly that: no top-up route and no number behind "unlimited".

Airalo eSIM review and alternatives comparison

Three providers score above Airalo: Saily (89), Firsty (87) and Nomad (84), against Airalo's 81 — and the gap is almost entirely about which network you are put on and whether Japan can be bought by the gigabyte. Airalo is the largest brand in the category, past 30 million customers as of June 2026, and it publishes its plan mechanics 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. The test it fails 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. Airalo's Japan product is unlimited-only, so the C$16.50 three-day plan is not comparable with a 5GB tier — you are buying a different thing, and 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

The alternatives to Saily are Firsty (87), which beats it on network disclosure, Nomad (84), which matches it on mechanics but not on support, and Ubigi (78), which is the only one of the four that is a network operator rather than a reseller. 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. It is the youngest company in the top three and the most complete on paper: 180-day activation window, auto top-up on by default, no rollover, hotspot allowed with a bar on excessive tethering, 3 to 5GB daily 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 the four rolls unused data over — that is universal across all eleven providers assessed, 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 publishes a security standard in the formal sense, 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. Eleven providers, and only one of them tells you the full answer for a given country.

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, which is why it scores 5 of 10 on substance 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 "unlimited" plan has a 2 to 5GB daily ceiling, 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.

The five providers assessed but not ranked

Holafly, JamboSim, Maya Mobile, Jetpac and Yesim were measured on the same rubric, from the same kind of public documents, and are named here with their published figures and no score. Only the six highest are ranked; assessment is free and identical for everyone, and a provider's absence from the index above is a position on the rubric, not an absence of evidence. The full record for each, with every source and observation date, sits in the evidence base behind this index.

Three rules for buying a travel eSIM in 2026

1 · Check the daily ceiling before you buy anything sold as unlimited. The published ceilings across this field run from 2GB a day (Nomad) to 5GB a day (Firsty), and 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, and the four dated changes below are why this index scores disclosure rather than price. 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, which is why its record in this index is marked incomplete rather than scored down — a provider whose pages cannot be read cannot be fairly assessed, and the finding is recorded as a gap.