At a glance
Fixed local plans, preferably for 30 days. Any different validity period is shown with the price. A hotspot lets you share your phone’s internet connection with a device such as a laptop.
| Feature | HolySim | Holafly |
|---|---|---|
| Network | NTT docomo / Rakuten Mobile / KDDI/au / SoftBank · 5G where available | KDDI / SoftBank · 4G/5G where available |
| 5 GB | €9.99 · 30 days | Not offered as a fixed local plan |
| 10 GB | €13.99 · 30 days | Not offered as a fixed local plan |
| 20 GB | €19.99 · 30 days | Not offered as a fixed local plan |
| 50 GB | €32.99 · 30 days | Not offered as a fixed local plan |
| Hotspot | Allowed on all compared plans. | Product page specifies 1 GB of sharing per day. |
| Validity starts | At first connection at the destination. | At connection at the destination; one day means 24 hours from activation. |
| Top-ups | Extra data through My eSIM. | Conflicting help pages; do not assume renewal on the same profile. |
| Support | Email support in Dutch. | 24/7 chat; help by email and WhatsApp. |
Unlimited data with Holafly
7 days: €25.50 · 15 days: €46.90 · 30 days: €68.90. These are different products from the fixed allowances in the table. Unlimited phone data does not mean unlimited sharing or a guaranteed speed.
All amounts are euro prices displayed by the provider, without a discount code. Promotions are marked. HolySim prices include VAT; possible payment or card fees at other providers have not been checked. A network name or 5G listing does not guarantee reception or speed at your location.
Where Holafly is better
Holafly lets you choose your trip length without a fixed allowance of gigabytes. That may suit you if you watch a lot of video on your phone while travelling.
The product page names KDDI and SoftBank, 24/7 support and 1 GB of hotspot data per day. The amount you can share is therefore clear in advance.
Where HolySim is better
Our 30-day fixed plans cost less than Holafly’s unlimited 30-day plan. If you use hotel Wi-Fi frequently, a small allowance can therefore reduce your spending considerably.
The fixed HolySim plans list NTT docomo and Rakuten Mobile alongside KDDI/au and SoftBank. That network listing is product information, not our own speed or reception test.
Which should you choose?
Choose Holafly if…
Choose Holafly if you want unlimited phone data and sharing 1 GB per day is enough. Intensive usage can lead to temporarily lower speeds.
Choose HolySim if…
Choose HolySim if 5 to 50 GB is enough and you want to pay a lower total price upfront. Hotspot use is allowed on these fixed plans.
Where these figures come from
We checked the published plans and terms on 16 September 2026. HolySim prices come from our own catalog. Holafly prices come from its official range for Japan. We compare local plans; regional and worldwide alternatives are outside the table’s scope.
HolySim confirmed hotspot support for the compared eSIM Access plans on 16 September 2026.
Unlimited applies to data on your phone. The network operator may temporarily reduce speeds during intensive use; the product page does not state a fixed usage threshold.
The specific top-up help page says you need a new eSIM. A general help page still mentions top-ups. Ask Holafly which process applies to your purchase.
- HolySim · plans for Japan. Consulted on 16 September 2026.
- HolySim · contact and support. Consulted on 16 September 2026.
- Holafly · plans for Japan. Consulted on 16 September 2026.
- Holafly · activation. Consulted on 16 September 2026.
- Holafly · top-ups. Consulted on 16 September 2026.
- Holafly · top-ups. Consulted on 16 September 2026.
This comparison is published by HolySim, which sells eSIMs itself. We use provider information and have not carried out our own speed or reception measurements. We review the comparison monthly. The prices shown are a snapshot; the price at purchase may differ.
About the publisher (Dutch)·Our editorial methodology (Dutch)