Kolet or Jetpac 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: Kolet ranked higher on 4, Jetpac on 12; average gap 40%.
Kolet
Ranked higher on 4 of the 16 trips compared★ 4.9 · 1,034 reviewsJetpac
Ranked higher on 12 of the 16 trips compared★ 4.4 · 140 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 GBJetpac€7.00 against €12.99 with Kolet (86% more)
- One week7 days, 5 GBJetpac€8.00 against €12.99 with Kolet (62% more)
- Unlimited7 days, unlimitedJetpac€25.00 against €25.48 with Kolet (2% more)
- Family of 44 travellers, 7 days, 5 GB eachJetpac€32.00 against €51.96 with Kolet (62% 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 | Kolet | Jetpac |
|---|---|---|
| 3 days | ||
| 1 GB, 3 days | €3.991 GBthat's €1.33/dayRanked higher | €6.003 GBthat's €2.00/day< 1% more expensive per GB |
| 5 GB, 3 days | €12.99that's €4.33/day86% more expensive | €7.00that's €2.33/dayRanked higher |
| 10 GB, 3 days | €19.99that's €6.66/day82% more expensive | €11.00that's €3.67/dayRanked higher |
| Unlimited, 3 days | €11.46that's €3.82/day9% more expensive | €10.50that's €3.50/dayRanked higher |
| 7 days | ||
| 1 GB, 7 days | €3.991 GBthat's €0.57/dayRanked higher | €7.003 GBthat's €1.00/day17% more expensive per GB |
| 5 GB, 7 days | €12.99that's €1.86/day62% more expensive | €8.00that's €1.14/dayRanked higher |
| 10 GB, 7 days | €19.99that's €2.86/day60% more expensive | €12.50that's €1.79/dayRanked higher |
| Unlimited, 7 days | €25.48that's €3.64/day2% more expensive | €25.00that's €3.57/dayRanked higher |
| 15 days | ||
| 1 GB, 15 days | €3.991 GBthat's €0.27/dayRanked higher | €9.505 GBthat's €0.63/day59% more expensive per GB |
| 5 GB, 15 days | €12.99that's €0.87/day37% more expensive | €9.50that's €0.63/dayRanked higher |
| 10 GB, 15 days | €19.99that's €1.33/day29% more expensive | €15.50that's €1.03/dayRanked higher |
| Unlimited, 15 days | €50.55that's €3.37/day26% more expensive | €40.00that's €2.67/dayRanked higher |
| 30 days | ||
| 1 GB, 30 days | €3.991 GBthat's €0.13/dayRanked higher | €9.505 GBthat's €0.32/day59% more expensive per GB |
| 5 GB, 30 days | €12.99that's €0.43/day37% more expensive | €9.50that's €0.32/dayRanked higher |
| 10 GB, 30 days | €19.99that's €0.67/day29% more expensive | €15.50that's €0.52/dayRanked higher |
| Unlimited, 30 days | €89.70that's €2.99/day42% more expensive | €63.00that's €2.10/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.
- Kolet★ 4.9 · 1,034 reviews
- Jetpac★ 4.4 · 140 reviews
Going further
- Every brand we compare for Japan: the full ranking ›
- Kolet or Jetpac, all destinations ›
- Other head-to-heads for Japan: Sirocco vs Kolet · Sirocco vs Jetpac · Airalo vs Kolet · Airalo vs Jetpac · Holafly vs Kolet · Holafly vs Jetpac · Orange Travel vs Kolet · Orange Travel vs Jetpac · Instabridge vs Kolet · Instabridge vs Jetpac · Roamless vs Kolet · Roamless vs Jetpac · aloSIM vs Kolet · aloSIM vs Jetpac · Kolet vs Sim Local · Kolet vs Eskimo · Kolet vs eSIM.me · Sim Local vs Jetpac · Eskimo vs Jetpac · 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 better ranked one changes with the trip or the average gap reaches 5%. Otherwise they are still compared in the destination's ranking. Methodology