Guide
What unlimited really means
Unlimited is the most oversold word in travel connectivity. It is not a lie, but it does not mean what most buyers assume. This guide explains what a fair use policy actually does, sets out what each provider we track publishes, translates the throttle speeds into things you might want to do, and gives you a rule for when unlimited is worth paying for.
Unmetered, not unthrottled
An unlimited travel eSIM promises one thing reliably: you will not run out and you will not be billed again. There is no overage charge and no dead line halfway through a trip. That is a real benefit, and for some travellers it is the whole point.
What it does not promise is full speed for the whole plan. Nearly every unlimited travel plan carries a fair use policy with two parts - a daily full-speed allowance, and a reduced speed that applies once you pass it. The reduced speed lasts until the allowance resets, normally at midnight in whatever timezone the provider uses. Nothing is switched off. Everything just gets slower.
What our providers actually publish
The differences between providers are less about generosity and more about honesty. Some publish the allowance and the throttle speed plainly. Others state only that a fair use policy exists. Here is what we could verify from each provider on our last price check.
| Provider | Daily full-speed allowance | After the allowance | Hotspot |
|---|---|---|---|
| Saily | 5GB in Italy, 3GB on the Europe plan, unpublished elsewhere | 1 Mbps | Allowed |
| Nomad | Daily allowance, figure not published | 512 kbps | Allowed |
| Ubigi | Fair use allowance, figure not published | 2 Mbps | Allowed as data sharing |
| Maya Mobile | Daily high-speed quota, figure not published | Described as standard speed | Allowed |
| Holafly | Not published | Not published | Allowed, capped at 1GB per day |
| Airalo | Not published for its unlimited tiers | Not published | Allowed, no tethering fee |
Two entries deserve a second look. Nomad publishes the lowest throttle speed of the group and also makes its unlimited plans non-refundable, so an unlimited Nomad plan is a firmer commitment than most. Holafly is the only provider that puts a hard number on hotspot rather than on the phone itself, and 1GB per day is not much once a laptop is attached - see eSIM hotspot and tethering.
What a throttled connection can still do
Throttle speeds sound abstract until you match them against real applications. Two published sets of requirements make that easy. Zoom lists 600 kbps each way for a good one-to-one video call and 1.2 Mbps each way for 720p. Spotify lists 160 kbps for High and 320 kbps for Very High audio. From those two figures, the picture becomes concrete.
- 512 kbps. Messaging, email, maps, ride hailing and boarding passes all work. Music streams fine at High quality. Video calling is below Zoom's own recommendation, so expect it to degrade or drop. Video streaming is realistically off the table.
- 1 Mbps. Everything above, plus a one-to-one video call that meets Zoom's good-quality figure with a little headroom. Web pages feel slow rather than broken. Video streaming is possible at the lowest mobile settings and unpleasant above them.
- 2 Mbps. Comfortably above Zoom's 720p requirement, so calls hold up. Mobile-quality video streaming works. This is the only throttle tier of the three that most people would describe as usable rather than survivable.
The practical conclusion is that a throttled plan is not a dead plan. It is a plan that does navigation, messaging and payments perfectly well and does video badly.
The arithmetic that usually decides it
Unlimited plans are sold by the day. Fixed-data plans are sold by the gigabyte. So the comparison is not unlimited against a number, it is your daily cost against your daily appetite.
Take a fortnight abroad. A traveller doing maps, messaging, social feeds and the occasional evening episode lands somewhere around 8GB to 12GB across the whole fortnight, roughly the same as a UK user's average monthly use of 10.6GB reported by Ofcom. On every destination we track, a 10GB or 20GB fixed bundle covers that for a fraction of fourteen days of unlimited pricing. The unlimited plan only wins when daily consumption climbs into the several-gigabytes-per-day range, and at that point you are usually bumping into the fair use allowance anyway.
When unlimited is right
- You genuinely cannot predict usage - a long unstructured trip, or a work trip where the schedule is not yours to control.
- You want to stop thinking about it. Some people will happily pay a premium never to see a data warning again, and that is a legitimate reason.
- Your daily use is heavy but front-loaded, so the throttle arrives late in the day when you are less likely to notice it.
- The destination prices unlimited unusually well. That happens, and it is visible instantly on the destination table because unlimited plans are ranked by price per day there.
The reverse case is India, where our own country notes flag that unlimited carries a large premium across most providers and fixed-data plans are far better value - the India comparison shows the gap clearly.
Before you buy
Work out your real appetite first with how much eSIM data do you need, then read the fair use wording on the provider's own plan page rather than the marketing headline. Our methodology page explains why unlimited plans are ranked separately from fixed bundles.
Common questions
Is an unlimited travel eSIM actually unlimited?
It is unmetered rather than unthrottled. You will not be cut off or charged extra, but almost every unlimited travel plan has a daily full-speed allowance, after which your speed drops to a fixed low rate until the allowance resets the next day.
What speed do unlimited plans throttle to?
It varies by provider. Among the providers we track, Nomad states 512 kbps after its daily high-speed allowance, Saily states 1 Mbps, and Ubigi states 2 Mbps. Others describe the reduced tier as standard speed without publishing a figure.
Can I use hotspot on an unlimited plan?
Usually yes, but this is where the limits bite first. Holafly allows hotspot sharing capped at 1GB per day, which is a hard ceiling regardless of how much you use on the phone itself. Other providers we track allow hotspot without publishing a separate cap.
Is unlimited better value than a fixed-data plan?
Only for genuinely heavy use over short trips. Because unlimited plans are priced per day rather than per gigabyte, a traveller using a few gigabytes over a fortnight almost always pays less on a fixed-data bundle. Compare both on the destination page before deciding.
Fair use terms described here were read from each provider's own documentation on our last price check and are stated only where the provider publishes them. Providers revise allowances and throttle speeds without notice, so confirm on the plan page before buying.