First1
Publishes the most generous headline allowance: roughly 90 GB per month at high speed before a slowdown to 256-1024 kbps, lifted within a day. Hotspot is allowed but separately capped at about 1 GB per day to share.
Independent · Best of · Last reviewed 01 Jun 2026 · Methodology v1
Best unlimited travel eSIM
How Simscanner reads each brand's fair use policy
Data confidence: Sourced 02 Jun 2026
Direct answer
No travel eSIM is truly unlimited. Every "unlimited" plan we tracked throttles speed once a fair use policy (FUP) ceiling is hit, so the honest question is how much full-speed data you get first. On the published high-speed allowance, the differentiator for this category, three brands stand apart: Holafly publishes the most generous headline allowance at roughly 90 GB per month before a 256-1024 kbps slowdown; Ubigi publishes the largest fixed monthly figure with the fastest throttle, 60 GB on a 30-day plan then about 2 Mbps; and Saily publishes the largest daily figure, 5 GB per day then up to 1 Mbps. Every number on this page is read from the brand's own wording and dated 02 Jun 2026.
Why "unlimited" is a misnomer: are unlimited eSIMs really unlimited? · how the ceiling works: what is FUP on an unlimited eSIM?
What is measured
The criterion
"Unlimited" on a travel eSIM almost never means uncapped throughput. It means the plan keeps working after you pass a fair use threshold, but at a reduced speed. Simscanner ranks this category on the figure that actually changes your trip: the published high-speed allowance before throttling, and the throttle speed that follows. A brand that prints "90 GB per month" or "5 GB per day" in the same place as the unlimited claim tells you more than a brand that says only "subject to fair use". The larger and clearer the published allowance, and the faster the post-throttle speed, the higher a brand sits here. The full definition lives at /how-we-score#unlimited-fup, and the plain-English explainer is what is FUP on an unlimited eSIM?
Editorial shortlist, ranked on published allowance
The shortlist
Simscanner does not publish a single composite score for this category. The shortlist below is editorial, ordered by the clarity and size of each brand's published high-speed allowance, the one differentiator we can trace to a source for every position. No price appears on this page; per-brand pricing lives on each brand profile with retrieved dates.
The shortlist, ranked on published FUP allowance3 brands sourced
Second2
Publishes the largest fixed monthly figure with the fastest post-throttle speed we recorded: 60 GB on a 30-day plan (20 GB on 7-day), then about 2 Mbps, fast enough that the slowdown stays usable. Hotspot allowed.
Third3
Publishes the largest daily figure: most commonly 5 GB per day at high speed (3 GB on some markets), then up to 1 Mbps. Its Ultra plan instead gives 30 GB high-speed per month, then unlimited at up to 1 Mbps.
Why these three: each prints a numeric high-speed allowance in the same place as its unlimited claim, so the ceiling is checkable. Holafly leads on raw monthly size, Ubigi on a clean fixed monthly figure plus the quickest throttle, Saily on daily headroom. Brands that publish smaller or only-daily allowances (Airalo, Jetpac, GigSky, Nomad, aloSIM, Maya) are compared in full below. HelloRoam is held out of the shortlist: it states "no throttling during the plan period" rather than printing a numeric allowance, so there is no published ceiling to rank, and a Simscanner US test reached about 6 GB in a day before speed dropped to roughly 1 Mbps, which the brand wording does not flag.
The comparison
Side by side
Every tracked brand's published high-speed allowance and throttle speed, read from the brand's own wording on 02 Jun 2026. Where a brand does not publish a number, the cell reads pending, never a guess. No price column appears anywhere.
Ordered by published high-speed allowance, largest and clearest first.
| Brand | Published high-speed allowance | Speed after FUP | Hotspot | Source · retrieved |
|---|---|---|---|---|
| Holafly | ~90 GB / month | 256-1024 kbps | Allowed, share ~1 GB/day | Holafly · 02 Jun 2026 |
| Ubigi | 60 GB / 30d (20 GB / 7d) | ~2 Mbps | Allowed | Ubigi · 02 Jun 2026 |
| Saily | 5 GB / day (3 GB some markets) | Up to 1 Mbps | Allowed | Saily · 02 Jun 2026 |
| Airalo | 3 GB / day | 1 Mbps, resets midnight local | Allowed | Airalo · 01 Jun 2026 |
| Jetpac | 3 GB / day | 1 Mbps (1024 kbps) | Allowed, tethering uncapped | Jetpac · 01 Jun 2026 |
| Maya Mobile | 3 GB / day | 10 Mbps, then 1 Mbps on very high use | Included | Maya · 01 Jun 2026 |
| GigSky | 2.5 GB / day (up to 3.5 GB some plans) | Throttled rest of day | Permitted | GigSky · 02 Jun 2026 |
| Nomad | 2 GB / day | 512 kbps | Pending verification | Nomad · 02 Jun 2026 |
| aloSIM | 2 GB / day | 512 kbps | Allowed | aloSIM · 02 Jun 2026 |
| HelloRoam | No numeric allowance published (states "no throttling during the plan period"); a Simscanner US test measured ~6 GB/day before throttling | ~1 Mbps (Simscanner test); brand publishes none | Included free (hotspot & tethering) | HelloRoam · 03 Jun 2026; Simscanner test 03 Jun 2026 |
No price column appears here. Allowances are the brand's stated high-speed quota before throttling, not a guaranteed minimum. Per-brand plan and pricing detail, with retrieved dates, lives on each brand profile.
What you give up
Trade-offs
A bigger headline allowance does not always win. Holafly's roughly 90 GB monthly pool is generous for a single device, but its post-FUP floor of 256-1024 kbps is the slowest on the table, and hotspot sharing is separately capped near 1 GB a day. Ubigi's 60 GB fixed monthly figure is smaller on paper, yet its roughly 2 Mbps throttle stays usable for maps and messaging after the quota, and Maya's 10 Mbps step-down is faster still before its 1 Mbps floor. Daily-cap brands such as Saily, Airalo, Jetpac, GigSky, Nomad and aloSIM reset every midnight, which suits steady daily use but punishes one heavy download day. Match the shape of the allowance to your trip: a monthly pool for bursty heavy use, a fast throttle for long stays, a daily cap for predictable everyday browsing. Read the mechanics in are unlimited eSIMs really unlimited?
Use-case fit
Best fit by traveller type
Each card points to the brand whose published allowance best matches the use case. The pick follows the sourced figures in the table above, not a paid placement.
Heavy single device, short trip
Streaming and uploads on one phone for a few days, where a large pool matters more than throttle speed.
Holafly~90 GB/month is the largest published pool
See the deciding category →
Long stay, needs usable speed after the quota
Weeks in one place where the post-FUP speed decides whether the plan stays workable.
Ubigi~2 Mbps after 60 GB is the fastest throttle
See the deciding category →
Steady daily browsing across borders
Predictable everyday use where a daily reset matters more than a single large pool.
Saily5 GB/day is the largest published daily cap
See the deciding category →
Honest backlog
Where data is pending
What we could not source to a number on 02 Jun 2026. Each is shown as pending rather than estimated.
Nomad hotspot policyNomad publishes a 2 GB/day allowance and 512 kbps throttle, but its tethering wording is not yet read verbatim from the brand page.Pending
Per-country allowance variationSome brands vary the daily cap by market (e.g. Saily 5 GB vs 3 GB, GigSky 2.5 GB vs 3.5 GB). Country-level figures are sourced on each country page.Pending
Unlimited tier validity windowsValidity differs by plan length. Recorded per plan on the brand profiles rather than summarised here.Pending
The rules
How Simscanner compares brands
1
The shortlist is editorial and ranks only on a sourced differentiator: the published high-speed allowance and throttle speed, defined on /how-we-score. No composite "overall" score is published, and no brand pays for position.
2
Every cell shows either a figure read from the brand's own wording with a source link and retrieved date, or "Pending verification". Cells are never left blank, never filled with a placeholder dash, and never filled with a marketing claim treated as fact.
3
A brand can only appear in the shortlist if it publishes a numeric allowance. HelloRoam is held out for that reason alone, not on quality, and joins the moment a figure is sourced inside the review window.
Common questions
Common questions
Is any travel eSIM genuinely unlimited?
No. Every "unlimited" plan we tracked keeps working but slows down once a fair use policy ceiling is reached. The plan does not stop, yet throughput drops, on the brands here to somewhere between 256 kbps and 2 Mbps. So "unlimited" means "no hard cut-off", not "no speed limit". The mechanics are explained in are unlimited eSIMs really unlimited?
Which unlimited eSIM gives the most full-speed data?
What happens after I pass the fair use ceiling?
Your speed is throttled, usually until the next reset. The floor varies: Holafly drops to 256-1024 kbps, Nomad and aloSIM to 512 kbps, Airalo, Jetpac and Saily to about 1 Mbps, while Ubigi (about 2 Mbps) and Maya (10 Mbps before a 1 Mbps floor) stay fastest. Daily-cap brands reset at local midnight; monthly-pool brands reset with the billing window. One brand to read carefully here is HelloRoam, which states "no throttling during the plan period" yet publishes no numeric allowance; in a Simscanner US test the connection slowed to about 1 Mbps after roughly 6 GB used in a day, so treat the no-throttling wording as the brand's claim, not a tested guarantee. See what is FUP on an unlimited eSIM?
Why are no prices shown on this page?
Simscanner does not sell travel eSIMs and does not run a price-comparison or affiliate funnel. Unlimited prices swing with plan length, country and currency, so a price here would date quickly. Per-brand pricing detail lives on the brand profile pages with retrieved dates. This page ranks on the published allowance, not on point-in-time prices.
Are these picks paid placements?
No. No brand pays for inclusion, order, or language. The shortlist order follows the sourced high-speed allowance figures defined on /how-we-score. The full neutrality enforcement chain lives at /zero-paid-placements.