Roamless or eSIM.me for Japan?
2 brands checked on 27/10/2026 · published by Mocom SAS (Sirocco)
Brands compared: Sirocco, Airalo, Holafly, Orange Travel, Instabridge, Roamless, aloSIM, Kolet, Sim Local, Eskimo, eSIM.me and Jetpac
As of 27/10/2026, out of 12 trips compared in Japan: Roamless cheaper on 11, eSIM.me on 1; average gap 41%.
Roamless
Cheaper on 11 of the 12 trips compared★ 4.8 · 3,295 reviewsOfficial website › Roamless (new tab)The verdict, by type of trip
- Short stay3 days, 5 GBRoamless€8.89 against €12.48 with eSIM.me (40% more)
- One week7 days, 5 GBRoamless€8.89 against €12.48 with eSIM.me (40% more)
- Unlimited7 days, unlimitedRoamlessThe only one offering this trip (€21.02); eSIM.me: no unlimited plan long enough
- Family of 44 travellers, 7 days, 5 GB eachRoamless€35.56 against €49.92 with eSIM.me (40% more)
A written rule, the same for every pair: for each type of trip, the cheaper of the two at the price we checked. Nothing is picked by hand; customer ratings don't count.
Prices, trip by trip
For each trip, each brand's cheapest plan that covers the duration and the data. In green, the cheaper of the two; "+x%", how much more the other one costs.
| Trip | Roamless | eSIM.me |
|---|---|---|
| 3 days | ||
| 1 GB, 3 days | €3.53that's €1.18/day1% more expensive | €3.51that's €1.17/dayCheaper |
| 5 GB, 3 days | €8.89that's €2.96/dayCheaper | €12.48that's €4.16/day40% more expensive |
| 10 GB, 3 days | €13.36that's €4.45/dayCheaper | €19.03that's €6.34/day42% more expensive |
| Unlimited, 3 days | €10.22that's €3.41/day | no unlimited plan long enough |
| 7 days | ||
| 1 GB, 7 days | €3.53that's €0.50/dayCheaper | €4.70that's €0.67/day33% more expensive |
| 5 GB, 7 days | €8.89that's €1.27/dayCheaper | €12.48that's €1.78/day40% more expensive |
| 10 GB, 7 days | €13.36that's €1.91/dayCheaper | €19.03that's €2.72/day42% more expensive |
| Unlimited, 7 days | €21.02that's €3.00/day | no unlimited plan long enough |
| 15 days | ||
| 1 GB, 15 days | €3.53that's €0.24/dayCheaper | €5.30that's €0.35/day50% more expensive |
| 5 GB, 15 days | €8.89that's €0.59/dayCheaper | €12.48that's €0.83/day40% more expensive |
| 10 GB, 15 days | €13.36that's €0.89/dayCheaper | €19.03that's €1.27/day42% more expensive |
| Unlimited, 15 days | €39.42that's €2.63/day | no unlimited plan long enough |
| 30 days | ||
| 1 GB, 30 days | €3.53that's €0.12/dayCheaper | €5.89that's €0.20/day67% more expensive |
| 5 GB, 30 days | €8.89that's €0.30/dayCheaper | €13.08that's €0.44/day47% more expensive |
| 10 GB, 30 days | €13.36that's €0.45/dayCheaper | €19.03that's €0.63/day42% more expensive |
| Unlimited, 30 days | €55.69that's €1.86/day | no unlimited plan long enough |
12 brands compared, not an exhaustive listWhy this ranking?
Compared on price: for each trip, each brand's cheapest plan that covers the duration and the data, at the public price we checked. Average gap: the mean, over the trips compared, of the difference between the two prices relative to the cheaper one.
Not an exhaustive comparison: 12 brands out of the dozens that sell eSIMs. The list of brands compared is in our Methodology.
eSIMeter is published by Mocom SAS, which sells Sirocco: the site is funded by those sales. No other brand pays us.
Customer ratings
App Store United Kingdom, checked on 27/10/2026. Ratings don't count in the verdict.
- Roamless★ 4.8 · 3,295 reviews
- eSIM.meno rating
Going further
- Every brand we compare for Japan: the full ranking ›
- Roamless or eSIM.me, all destinations ›
- Other head-to-heads for Japan: Sirocco vs Roamless · Sirocco vs eSIM.me · Airalo vs Roamless · Airalo vs eSIM.me · Holafly vs Roamless · Orange Travel vs Roamless · Orange Travel vs eSIM.me · Instabridge vs Roamless · Instabridge vs eSIM.me · Roamless vs aloSIM · Roamless vs Kolet · Roamless vs Sim Local · Roamless vs Eskimo · Roamless vs Jetpac · aloSIM vs eSIM.me · Kolet vs eSIM.me · Sim Local vs eSIM.me · Eskimo vs eSIM.me · eSIM.me vs Jetpac
A page per destination is only published if both brands have a price for at least 4 of the 16 trips, and if the cheaper one changes with the trip or the average gap reaches 5%. Otherwise they are still compared in the destination's ranking. Methodology