Kolet
Kolet: Fixed Japan data plans add hotspot, top-ups, transfers and credits for unused data. Ranked #16 of 60 in Japan eSIM Plans by our editors (7.2/10); pricing: From €3.99; best for travelers wanting transferable or creditable unused data.
At a glance
- Editor score7.2 / 10
- PricingFrom €3.99
- Best forTravelers wanting transferable or creditable unused data
- Free planNo
- Data typeFixed
- Facts checked3 Oct 2026
Where it wins
- Japan bundles stay valid for 30 days from first data use at destination
- Hotspot sharing and in-app or website top-ups
- Unused data can be transferred or converted into future-purchase credits
Where it doesn't
- No free plan; the listed 1 GB bundle costs €3.99 one-time
- The listed bundles are fixed-data rather than unlimited
- The unlimited option's price, allowance details and validity are not shown
Our verdict on Kolet
Kolet sells travel eSIM plans for Japan and other destinations, with country-specific, regional and global options. Japan travelers can choose fixed-data bundles or an unlimited option, install the eSIM before departure, and start the plan when they first use data at their destination. Its combination of fixed bundles and ways to handle leftover data suits travelers who value flexibility; those seeking a free plan or a clearly priced unlimited bundle may prefer another option.
The Japan page lists one-time bundles of 1 GB for €3.99, 3 GB for €8.99, 5 GB for €12.99, 10 GB for €19.99, and 20 GB for €29.99. Each listed bundle has 30-day validity. That period starts with first data use at the destination, so the plan need not begin running just because it was installed before departure. Kolet also lists an unlimited Japan option, but its price, allowance details and validity are not provided on the page. The fixed plans make the purchase choices clear, while the limited published detail around unlimited makes it harder to compare that option.
Data management is a notable part of the offer: users can share a hotspot, top up through the app or website, transfer data to another person, or convert unused data into credits for future purchases. The service is available on web, iOS and Android, and support is offered by chat around the clock. Kolet is a good fit for travelers who want a Japan-specific plan and value the ability to carry unused data forward or share it. Travelers who need a free option, or who want full pricing and validity details before weighing an unlimited plan, should compare alternatives.
Kolet pricing
All 5 Kolet plans and prices →
Kolet fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Data type | Fixed |
| Data allowance | 1 GB |
| Validity | 30 days |
| Hotspot support | Yes |
| Coverage scope | Japan_only |
| Activation timing | First_connection |
| Deployment | Cloud, Mobile |
| Platforms | Web, iOS, Android |
| Support | Live chat · 24/7 |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | From €3.99 (source) |
| Website | kolet.com |
| Facts checked | 3 Oct 2026 |
Alternatives to Kolet
- AiraloA broad Japan eSIM lineup with app tracking, low-data alerts, and eligible top-ups.9.3
- Orange TravelA flexible prepaid choice, from a €1 1 GB bundle to larger and unlimited plans.9.1
- Vodafone Travel eSIMJapan data plans range from fixed bundles to unlimited and shared options.9.0
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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