How we choose eSIM suppliers, and what gets one rejected
The criteria we apply, and the things we honestly cannot verify ourselves.
Quick answer
- We weight consistent profile issuance and clearly written terms above the lowest price.
- We do not claim field speed testing in every country, because we have not done it.
This page exists so you know what sits behind the plans we list, and so it is clear which claims we can stand behind and which we cannot.
The criteria we apply
- Profile issuance success rate, and the time from payment to QR
- Clarity of terms, especially when validity starts and where speed is capped
- The escalation path when a profile fails, and how fast they respond
- Whether the covered-country list matches what is advertised
What we do not claim
- We do not guarantee a speed figure, because speed depends on the network and the moment
- We have not personally tested every plan in every country
- We do not name every counterparty when a contract forbids it, and we say so when that is the case
Why this page exists at all
Most eSIM shops do not own a network, and many do not issue the profiles either. When what you buy is permission to use somebody else's network, the useful question is not which plan is best but who stands behind it and who fixes it when it breaks. This page answers that as far as we honestly can.
It is written to be checkable: the criteria we use, how the information reaches us, and where our knowledge simply stops. A page that says every country was tested without saying how the testing was done carries almost no weight, and we would rather this one not read like that.
What a supplier actually is in this chain
In travel eSIM, a supplier is the party doing two things: holding the arrangements that let a visitor use networks at the destination, and issuing the eSIM profile that installs on your handset. Sometimes those are the same company and sometimes they are not, which is why a single fault can pass through several hands before it reaches whoever can actually resolve it.
| Role | What it does | Why it matters to you |
|---|---|---|
| The local network | Owns the masts and the coverage that actually exists on the ground | Decides whether the signal on the street you are standing on is good; no reseller can change that |
| The party holding the roaming arrangements | Lets your profile attach to the local network as a visitor | Determines which countries genuinely work, and is where the country list comes from |
| The profile issuer | Generates the QR or activation code once you have paid | This is where installation failures most often originate |
| The seller you actually buy from | Takes the order, gives guidance and receives the complaint | The only one you can reach directly, so it has to be genuinely reachable |
Who does what between you and the mast
The pass a plan goes through before it is listed
- 1Read the full terms before anything elseBefore the price, we read when validity starts, how the stated data is counted, what happens when it runs out, and whether hotspot sharing is restricted. If any of that is vague enough to require guessing, the plan has not passed this step.
- 2Match the country list against the marketingRegional plans tend to be advertised by continent while covering a specific list of countries. We compare the two directly, and where they diverge our page carries the real list rather than the marketing phrase.
- 3Install one for realWe buy and install a real profile on a real handset to see how long payment to activation code takes, whether the instructions are clear to a first-timer, and which step a normal person will trip on.
- 4Test the escalation pathWe put a real question into whatever channel the supplier provides and watch what comes back and how quickly. A channel that is silent before any sale tells you plainly what it will be like when a customer is stuck.
- 5Write the plan page in our own wordsWe do not paste the supplier's copy. We rewrite it to match the terms we read, and where something depends on the network or the user's handset we say so instead of making a promise on somebody else's behalf.
Each criterion, and what fails it
The criteria listed at the top of this page are headline topics. The table below is how each one is actually judged, written as things that can be observed rather than impressions, because a criterion you cannot observe eventually becomes a preference.
| Criterion | What we look at | What fails it |
|---|---|---|
| Profile issuance | Time from payment to activation code, and how consistent it is | Repeated failures, or delays long enough to leave a customer boarding without a working plan |
| Clarity of terms | Whether it states when validity starts, in days or hours, and what happens when data runs out | Words like unlimited used without stating the conditions attached |
| Escalation path | A channel that answers, and a defined route when a profile does not work | Answers pre-sales questions and goes quiet on post-sales problems |
| Accuracy of the country list | The documented list matching the marketing and matching what the system actually sells | A continent in the headline while the real list omits countries people commonly visit |
| Price consistency | The displayed price matching what is charged, with no fee appearing at the end | Costs that were not disclosed up front |
What gets a supplier rejected
Rejection is rarely a score falling below a line. It usually comes from behaviour that predicts what happens when a customer is in trouble. The list below is what we treat as a stop signal rather than a note for improvement.
- Terms changing without notice, particularly around validity and how data is counted
- Coverage claims wider than the supplier's own documentation supports
- Disowning a failed profile issuance by pushing it back onto the buyer
- No written process for a refund or a reissue
- Very slow replies during travel itself, the only window when a reply is worth anything
- Guaranteed speed figures that cannot be substantiated, which say something about how the whole company thinks
Why cheapest is not the first criterion
Price matters and we will not pretend otherwise, but the cheapest option usually reaches its price by removing something: an allowance that suits two days sold against a seven-day trip, or a support channel that does not really exist. The true cost of a cheap plan shows up on the first day of the trip, which is the day you have the fewest alternatives.
Pros
- A low price genuinely helps when the terms are clear and the allowance fits your usage
- Small cheap plans suit short trips that lean on accommodation Wi-Fi
Cons
- Cheap because the allowance is too small ends in repeated top-ups that cost more overall
- Cheap because nobody handles post-sale problems only becomes visible when it is too late
The evidence we use, and what it cannot prove
Criteria only mean something when you can say where the information came from. This table separates what each kind of evidence shows from where it goes quiet, and the quiet part is what we will not turn into a claim on the site.
| Evidence | What it shows | What it does not show |
|---|---|---|
| Our own purchase and install | The buying flow, issuance speed and how clear the instructions are | How it performs in every city at every hour |
| The supplier's written terms | What they have committed to in writing | What they will actually do when a dispute arises |
| What customers report to us | Patterns that repeat often enough to be a trend | A statistical picture, since people for whom it worked rarely write in |
| How the supplier's team answers questions | Speed and relevance of replies over a given period | Whether it stays that way after the team or the ownership changes |
Marketing wording we do not let through
Most of the screening work does not end with choosing a supplier; it ends in the words on the plan page. Ambiguous copy causes more wrong purchases, in both size and validity, than network quality does, so we rewrite rather than paste.
- Unlimited has to arrive with an explanation of what happens after a certain point
- Nationwide coverage does not mean everywhere, and we will not use one phrase for the other
- A 5G mention has to say it depends on the handset, the network and the area, not only on the plan
- Validity has to state its starting point, since that is a leading cause of misunderstanding
- Hotspot sharing has to say whether it is permitted, because plans differ
When something goes wrong, who carries it
The answer is straightforward: you contact us and we chase the supplier on your behalf, every time, because every plan on this site is sold by us. We activate it through our own supplier's API, take payment ourselves, and handle every problem end to end.
This is worth knowing before you buy rather than after something goes wrong: whichever plan you choose on this site, there is only one channel to remember — contact us on LINE or by email. If anything is unclear before you pay, ask us.
A listed plan still has to keep earning its place
Passing once does not buy a permanent place on the site. Terms change, suppliers change who they contract with, and support quality moves with the team. What happens after the sale is therefore the most valuable information we have, because it is the only part measured on real customers.
- Watch whether the same problem recurs on the same plan
- Re-read the terms whenever the supplier announces a change and correct our page to match
- Reduce the visibility of a plan whose failures are becoming frequent, before deciding to stop selling it
- Tell affected customers directly when a plan is withdrawn for quality reasons
What we still cannot verify ourselves
We do not have field teams in every country and we have not tested every plan in every city. So when a page of ours says something depends on the network, the handset or the supplier, that is not evasion; it is the edge of what we actually know, written down plainly.
- Real-world speed in a given area at a given hour
- Signal quality indoors, underground or in remote areas
- Internal changes at a supplier that have not been announced
- How every handset model on every OS version behaves
- Local network policies, which can shift at any time
If you find something that contradicts this page
This page is only useful if it gets checked. If you buy from us and find the real terms differ from what we wrote, or the escalation path is not what we described, that is the information we most want. Write to us on LINE at https://lin.ee/skDPoNx or by email at esimonline.asia@gmail.com with your order number and a screenshot if you have one.
We take messages around the clock, every day, including by phone at 089-942-0818 or 088-521-6848. What we will commit to is this: where a page of ours is wrong, we change the page rather than reshaping the explanation to fit what was already written.
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What happens if a supplier starts failing often?+
We reduce that plan's visibility and stop selling it if failures persist, and we notify affected customers.
Can a supplier pay for a better position?+
No. Ranking follows the criteria on our ranking page, not commission.
Can a supplier pay for better placement?+
No. Ordering follows the criteria on this page and on our ranking page, not payment, so a position on the site cannot be bought by any route.
Why do some plans not name the supplier?+
Some contracts forbid naming the counterparty. When that applies we say plainly that we cannot name them rather than inventing a label. What we can always state is who the seller is, who receives the complaint, and what the plan's terms are.
Do these criteria mean a listed plan is guaranteed to work?+
No. They reduce the predictable failures, such as vague terms or nobody answering, but they cannot control a local network or every handset's compatibility. If an install works and the service does not, contact us with your order number and what the screen shows.
Can I apply these criteria to other shops?+
Yes, and that is the intention. The four questions that work best are: when does validity start, what happens when the data runs out, which countries are included according to the actual documentation, and who do I contact if the install fails. A shop that answers those clearly usually handles the rest as well.
How would you know if a supplier started slipping?+
The first signals are usually slower or more frequently failing issuance, plus customer reports repeating the same shape of problem. When we see that we cut the plan's visibility first, then stop selling it if the pattern continues, and tell affected customers.
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