Sakura SIM
Sakura SIM: Unlimited Japan data on au/KDDI, with validity starting at first network connection. Ranked #56 of 60 in Japan eSIM Plans by our editors (3.1/10); pricing: Paid; best for travelers wanting unlimited data on au/KDDI.
At a glance
- Editor score3.1 / 10
- PricingPaid
- Best forTravelers wanting unlimited data on au/KDDI
- Free planNo
- Data typeUnlimited
- Facts checked3 Oct 2026
Where it wins
- Unlimited data over au (KDDI)'s 4G LTE and 5G network
- Email delivery of a QR code and eSIM setup instructions
- Validity starts on first connection to au's network in Japan
Where it doesn't
- Japan-only coverage
- Data-only service excludes voice calls and SMS
- Tethering has a plan-specific sharing allowance
Our verdict on Sakura SIM
Sakura SIM sells prepaid, Japan-only eSIM data plans for travelers visiting Japan and people temporarily returning there. It is a fit for travelers who want unlimited data on au (KDDI)'s network and can use a compatible mobile device. Plans support 4G LTE and 5G. This is data-only service, so it does not include voice calls or SMS; travelers who need those services should choose a separate option.
Setup is centered on email delivery: after purchase, customers receive a QR code and instructions for installing the eSIM. Plan validity begins when the eSIM first connects to au's network in Japan, rather than at purchase. Tethering is supported, but its sharing allowance depends on the plan, so travelers planning to hotspot other devices should check that allowance when selecting a plan. Sakura SIM's fit is therefore strongest for a Japan trip where mobile data is the priority and the traveler can manage setup by QR code.
According to the product page, €17.90 was displayed while the product was shown as sold out, and selectable periods and corresponding prices were not visible. That does not establish an available plan price or validity period. Sakura SIM is best considered by travelers seeking Japan-only unlimited data who are comfortable confirming current availability before purchase. It is less suitable for trips requiring service outside Japan, included calls or texts, or a known tethering allowance before choosing a plan.
Sakura SIM pricing
Sakura SIM fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Data type | Unlimited |
| Data allowance | Unlimited data; tethering has a plan-specific sharing allowance |
| Validity | Not verified |
| Hotspot support | Yes |
| Coverage scope | Japan_only |
| Activation timing | First_connection |
| Deployment | Mobile |
| Platforms | iOS, Android |
| Support | |
| Built for | Solo (editorial estimate) |
| Pricing | Paid (source) |
| Website | sakura-sim.com |
| Facts checked | 3 Oct 2026 |
Alternatives to Sakura SIM
- 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
See all Sakura SIM alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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