About eSIMBench

eSIMBench is an independent benchmark authority for travel eSIMs. We grade every major provider across eight weighted dimensions and publish a citable State of eSIM report each quarter. Our job is to tell you which eSIM is actually good, and to show our working.

Part of a research network

eSIMBench is part of the AFF Network eSIM research cluster. Our sister site, howfastesim.com, is a geographic speed atlas: it measures real-world eSIM speeds country by country. eSIMBench takes a different angle — instead of mapping speed by place, it scores providers across every dimension that matters and rolls those into a single grade. The two sites share data where it makes sense and link to each other so you can move from "how fast is this provider in Japan" to "how good is this provider overall" in a click.

Editorial standards

We hold ourselves to a small set of rules that do not bend:

• No invented data. If a value is not real and sourced, we show "Pending" or a dash — never a placeholder number.
• Fixed, public rubric. The dimensions and weights are published in advance and applied identically to every provider.
• Mechanical scoring. Grades are computed from data and weights, not assigned by someone who knows which providers pay best.
• Sources on everything. Every score carries a visible source and date, so any reader can audit it.
• No pay-to-play. No provider can buy a higher grade, a better rank, inclusion, or a preview of its scorecard.

The full scoring method, including our independence safeguards, is on the methodology page.

Affiliate disclosure

eSIMBench is funded in part by affiliate commissions. Some links on this site are affiliate links: if you click one and make a purchase, we may earn a commission at no extra cost to you, and in some cases you may receive a discount. These links are marked as sponsored outbound links.

Here is the part that matters: affiliate revenue has no effect on any score. Whether we earn a commission from a provider does not change its grade, its rank, or whether it appears on the site at all. We track every major provider on the same terms, including ones we cannot earn a cent from. Scoring is computed from the data and the published weights, and the rubric is fixed before the data is in, so there is no lever to pull for a paying partner. On scorecard pages we deliberately keep purchase links away from the data, so you reach a grade and its evidence before you reach anything we profit from.

Contact

Think a score is wrong, or have a question about the method? We want to hear it — corrections backed by evidence are how the benchmark stays honest. Reach us at hello@esimbench.com. Material corrections are logged publicly in the score changelog.