aloSIM 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: aloSIM cheaper on 9, eSIM.me on 3; average gap 27%.
The verdict, by type of trip
- Short stay3 days, 5 GBaloSIM€7.00 against €12.48 with eSIM.me (78% more)
- One week7 days, 5 GBaloSIM€9.00 against €12.48 with eSIM.me (39% more)
- Unlimited7 days, unlimitedaloSIMThe only one offering this trip (€26.00); eSIM.me: no unlimited plan long enough
- Family of 44 travellers, 7 days, 5 GB eachaloSIM€36.00 against €49.92 with eSIM.me (39% 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 | aloSIM | eSIM.me |
|---|---|---|
| 3 days | ||
| 1 GB, 3 days | €4.00that's €1.33/day14% more expensive | €3.51that's €1.17/dayCheaper |
| 5 GB, 3 days | €7.00that's €2.33/dayCheaper | €12.48that's €4.16/day78% more expensive |
| 10 GB, 3 days | €14.00that's €4.67/dayCheaper | €19.03that's €6.34/day36% more expensive |
| Unlimited, 3 days | €11.00that's €3.67/day | no unlimited plan long enough |
| 7 days | ||
| 1 GB, 7 days | €4.50that's €0.64/dayCheaper | €4.70that's €0.67/day4% more expensive |
| 5 GB, 7 days | €9.00that's €1.29/dayCheaper | €12.48that's €1.78/day39% more expensive |
| 10 GB, 7 days | €16.00that's €2.29/dayCheaper | €19.03that's €2.72/day19% more expensive |
| Unlimited, 7 days | €26.00that's €3.71/day | no unlimited plan long enough |
| 15 days | ||
| 1 GB, 15 days | €7.50that's €0.50/day42% more expensive | €5.30that's €0.35/dayCheaper |
| 5 GB, 15 days | €10.00that's €0.67/dayCheaper | €12.48that's €0.83/day25% more expensive |
| 10 GB, 15 days | €17.00that's €1.13/dayCheaper | €19.03that's €1.27/day12% more expensive |
| Unlimited, 15 days | €46.00that's €3.07/day | no unlimited plan long enough |
| 30 days | ||
| 1 GB, 30 days | €7.50that's €0.25/day27% more expensive | €5.89that's €0.20/dayCheaper |
| 5 GB, 30 days | €11.00that's €0.37/dayCheaper | €13.08that's €0.44/day19% more expensive |
| 10 GB, 30 days | €17.00that's €0.57/dayCheaper | €19.03that's €0.63/day12% more expensive |
| Unlimited, 30 days | €70.00that's €2.33/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.
- aloSIM★ 4.7 · 419 reviews
- eSIM.meno rating
Going further
- Every brand we compare for Japan: the full ranking ›
- aloSIM or eSIM.me, all destinations ›
- Other head-to-heads for Japan: Sirocco vs aloSIM · Sirocco vs eSIM.me · Airalo vs aloSIM · Airalo vs eSIM.me · Holafly vs aloSIM · Orange Travel vs aloSIM · Orange Travel vs eSIM.me · Instabridge vs aloSIM · Instabridge vs eSIM.me · Roamless vs aloSIM · Roamless vs eSIM.me · aloSIM vs Kolet · aloSIM vs Sim Local · aloSIM vs Eskimo · aloSIM vs Jetpac · 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