Flysimio vs MobiMatter.
MobiMatter wins per-gigabyte at high data volumes. Flysimio wins on most short trips. Here is how to know which one to pick.
See Flysimio pricingSame network, different price tags.
Five gigabytes on Japan's NTT Docomo network. Identical speed and caps.
What actually really differs.
| Feature | Flysimio | MobiMatter |
|---|---|---|
| Japan · 5 GB / 30 days | $6.75 | $10.99 |
| Japan · 20 GB / 30 days | $22.75 | $13.99 |
| Europe · 10 GB / 30 days | $14.18 | $16.99 |
| USA · 5 GB / 30 days | $7.75 | $12.99 |
| Real carriers | ||
| Instant activation | ||
| Top-ups supported | ||
| Plan flexibility (5 GB and under) | Wins | Limited options |
Where MobiMatter might still win.
MobiMatter wins on per-GB cost at high data volumes.
True. For Japan, MobiMatter offers 20 GB / 30 days at $13.99 — that is $0.70/GB, which is lower than Flysimio at the equivalent data tier. If you stream or tether heavily, MobiMatter may be cheaper for that specific trip.
MobiMatter aggregates many eSIM providers in one marketplace.
MobiMatter is a multi-provider marketplace, which means plan quality varies by the underlying partner. You need to check carrier names per plan. Flysimio is a direct provider — the carrier is transparent upfront.
MobiMatter has a wider range of plan options.
Because MobiMatter aggregates multiple suppliers, the sheer number of plan variants is higher. For travelers who like shopping around, that breadth is useful. For travelers who want a clean, fast checkout, it adds noise.
Common questions.
When does Flysimio beat MobiMatter on price?
On most 5 GB and under plans. MobiMatter's per-GB advantage only shows up at 15 GB+ where their bulk pricing kicks in. For a typical 5–7 day trip, Flysimio is cheaper.
Which carrier does MobiMatter use in Japan?
It depends on the plan — MobiMatter aggregates multiple eSIM providers. Some use NTT Docomo (IIJ), others use KDDI or SoftBank partners. Always check the carrier listed on the plan before purchasing.
Can I use both simultaneously?
Yes — most modern phones support dual eSIM. Buy Flysimio for your primary data; keep MobiMatter as a backup if you need burst data mid-trip.
What is the refund policy?
14 days from purchase, full refund, no questions asked.
Short trip? We're cheaper.
Most travelers need 5 GB or less. Flysimio is the lower price for that use case.
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