aloSIM or Eskimo 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: aloSIM ranked higher on 3, Eskimo on 12, tied on 1; average gap 19%.

aloSIM

Ranked higher on 3 of the 16 trips compared★ 4.7 · 419 reviewsOfficial website ›

Eskimo

Ranked higher on 12 of the 16 trips compared★ 4.5 · 94 reviewsOfficial website ›

The verdict, by type of trip

Short stay3 days, 5 GBaloSIM€7.00 against €9.74 with Eskimo (39% more)
One week7 days, 5 GBaloSIM€9.00 against €9.74 with Eskimo (8% more)
Unlimited7 days, unlimitedEskimo€19.66 against €26.00 with aloSIM (32% more)
Family of 44 travellers, 7 days, 5 GB eachaloSIM€36.00 against €38.96 with Eskimo (8% 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.

Prices, trip by trip
Trip	aloSIM	Eskimo
3 days
1 GB, 3 days	€4.00that's €1.33/day15% more expensive	€3.49that's €1.16/dayRanked higher
5 GB, 3 days	€7.00that's €2.33/dayRanked higher	€9.74that's €3.25/day39% more expensive
10 GB, 3 days	€14.00that's €4.67/dayRanked higher	€16.00that's €5.33/day14% more expensive
Unlimited, 3 days	€11.00that's €3.67/day23% more expensive	€8.94that's €2.98/dayRanked higher
7 days
1 GB, 7 days	€4.50that's €0.64/day29% more expensive	€3.49that's €0.50/dayRanked higher
5 GB, 7 days	€9.00that's €1.29/dayRanked higher	€9.74that's €1.39/day8% more expensive
10 GB, 7 days	€16.00that's €2.29/dayTied	€16.00that's €2.29/dayTied
Unlimited, 7 days	€26.00that's €3.71/day32% more expensive	€19.66that's €2.81/dayRanked higher
15 days
1 GB, 15 days	€7.503 GBthat's €0.50/day43% more expensive per GB	€3.491 GBthat's €0.23/dayRanked higher
5 GB, 15 days	€10.00that's €0.67/day3% more expensive	€9.74that's €0.65/dayRanked higher
10 GB, 15 days	€17.00that's €1.13/day6% more expensive	€16.00that's €1.07/dayRanked higher
Unlimited, 15 days	€46.00that's €3.07/day17% more expensive	€39.33that's €2.62/dayRanked higher
30 days
1 GB, 30 days	€7.503 GBthat's €0.25/day43% more expensive per GB	€3.491 GBthat's €0.12/dayRanked higher
5 GB, 30 days	€11.00that's €0.37/day13% more expensive	€9.74that's €0.32/dayRanked higher
10 GB, 30 days	€17.00that's €0.57/day6% more expensive	€16.00that's €0.53/dayRanked higher
Unlimited, 30 days	€70.00that's €2.33/day14% more expensive	€61.67that's €2.06/dayRanked higher

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.

aloSIM★ 4.7 · 419 reviews
Eskimo★ 4.5 · 94 reviews

Going further

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