Sirocco or Sim Local 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 16 trips compared in Japan: Sirocco ranked higher on 8, Sim Local on 8; average gap 19%.
Sim Local
Ranked higher on 8 of the 16 trips compared★ 4.8 · 420 reviewsBadges for the 7 days, 5 GB trip, worked out among the 12 brands we compare, as on the destination page.
The verdict, by type of trip
- Short stay3 days, 5 GBSirocco Our eSIM€9.00 against €9.75 with Sim Local (8% more)
- One week7 days, 5 GBSirocco Our eSIM€9.00 against €9.75 with Sim Local (8% more)
- Unlimited7 days, unlimitedSim Local€16.75 against €23.20 with Sirocco (39% more)
- Family of 44 travellers, 7 days, 5 GB eachSirocco Our eSIM€32.40 against €39.00 with Sim Local (20% more)
A written rule, the same for every pair: for each type of trip, the better ranked of the two on price per GB (for unlimited, on price), at the prices 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 better ranked of the two: price per GB, not counting GB beyond one and a half times the data requested (for unlimited, price). "+x%", how much more the other one costs, per GB when the data differs.
| Trip | Sirocco Our eSIM | Sim Local |
|---|---|---|
| 3 days | ||
| 1 GB, 3 days | €3.80that's €1.27/day9% more expensive | €3.50that's €1.17/dayRanked higher |
| 5 GB, 3 days | €9.00that's €3.00/dayRanked higher | €9.75that's €3.25/day8% more expensive |
| 10 GB, 3 days | €15.20that's €5.07/day7% more expensive | €14.25that's €4.75/dayRanked higher |
| Unlimited, 3 days | €10.40that's €3.47/dayRanked higher | €11.50that's €3.83/day11% more expensive |
| 7 days | ||
| 1 GB, 7 days | €3.801 GBthat's €0.54/dayRanked higher | €6.753 GBthat's €0.96/day18% more expensive per GB |
| 5 GB, 7 days | €9.00that's €1.29/dayRanked higher | €9.75that's €1.39/day8% more expensive |
| 10 GB, 7 days | €15.20that's €2.17/day7% more expensive | €14.25that's €2.04/dayRanked higher |
| Unlimited, 7 days | €23.20that's €3.31/day39% more expensive | €16.75that's €2.39/dayRanked higher |
| 15 days | ||
| 1 GB, 15 days | €3.801 GBthat's €0.25/dayRanked higher | €9.755 GBthat's €0.65/day71% more expensive per GB |
| 5 GB, 15 days | €9.50that's €0.63/dayRanked higher | €9.75that's €0.65/day3% more expensive |
| 10 GB, 15 days | €15.60that's €1.04/day9% more expensive | €14.25that's €0.95/dayRanked higher |
| Unlimited, 15 days | €42.20that's €2.81/day23% more expensive | €34.25that's €2.28/dayRanked higher |
| 30 days | ||
| 1 GB, 30 days | €3.801 GBthat's €0.13/dayRanked higher | €9.755 GBthat's €0.33/day71% more expensive per GB |
| 5 GB, 30 days | €9.90that's €0.33/day2% more expensive | €9.75that's €0.33/dayRanked higher |
| 10 GB, 30 days | €16.10that's €0.54/day13% more expensive | €14.25that's €0.48/dayRanked higher |
| Unlimited, 30 days | €60.30that's €2.01/dayRanked higher | €68.25that's €2.28/day13% more expensive |
Sirocco is ranked lower on 8 trips: 3 days, 1 GB (€3.80 against €3.50); 3 days, 10 GB (€15.20 against €14.25); 7 days, 10 GB (€15.20 against €14.25); 7 days, unlimited (€23.20 against €16.75); 15 days, 10 GB (€15.60 against €14.25); 15 days, unlimited (€42.20 against €34.25); 30 days, 5 GB (€9.90 against €9.75); 30 days, 10 GB (€16.10 against €14.25).
12 brands compared, not an exhaustive listWhy this ranking?
Compared on price per GB: for each trip, each brand's cheapest plan that covers the duration and the data, at the public price we checked, divided by its GB (at most one and a half times the data requested); for unlimited, the price. Average gap: the mean, over the trips compared, of the difference between the two brands relative to the better ranked 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.
- Sirocco Our eSIMno rating
- Sim Local★ 4.8 · 420 reviews
Going further
- Every brand we compare for Japan: the full ranking ›
- Sirocco or Sim Local, all destinations ›
- Other head-to-heads for Japan: Sirocco vs Airalo · Sirocco vs Holafly · Sirocco vs Orange Travel · Sirocco vs Instabridge · Sirocco vs Roamless · Sirocco vs aloSIM · Sirocco vs Kolet · Sirocco vs Eskimo · Sirocco vs eSIM.me · Sirocco vs Jetpac · Airalo vs Sim Local · Holafly vs Sim Local · Orange Travel vs Sim Local · Instabridge vs Sim Local · Roamless vs Sim Local · aloSIM vs Sim Local · Kolet vs Sim Local · Sim Local vs Eskimo · Sim Local vs eSIM.me · Sim Local 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 better ranked one changes with the trip or the average gap reaches 5%. Otherwise they are still compared in the destination's ranking. Methodology