
Roamify allows users to save over 80% on roaming charges, in 150+ countries worldwide, all done in under 3 minutes via the power of Roamify eSIMs! We offer both regular and unlimited plans.
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Data plans for this provider are automatically updated. While we strive to keep the information accurate, we cannot guarantee its completeness or accuracy. Please confirm all details on the provider's official website or app before purchasing.
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“The first time I used an international eSIM from this website with this company, I had no problems at all. I generally got 5G, and I was even in small towns in Japan—I honestly didn’t expect it to work that well.
I highly recommend it. To avoid any issues, and since it was 20GB, I disabled several apps so they wouldn’t use data in the background. By the way, I was also sharing it with my wife.
Everything was perfect.”
“Used without issues in both Tokyo and Osaka. The latency wasn't great due to roaming connection through Singapore, but was manageable. At least it’s more convenient than eSIMs that go through Hong Kong and don’t work with services like ChatGPT. The network was au’s LTE or 5G, and signal was solid everywhere, no complaints.”
“coverage was very good, easy setup at public wifi spot upon arrival. One major thing though: internet breakout is Hong Kong.
There is no instagram coverage (anymore) in Hong Kong!
If you plan to use this operator, you should be aware of this.”
“Had some trouble setting this up at first. The eSIM supports many of the major networks in japan (KDDI, NTT Docomo, SoftBank) and I had to manually force it to connect to Docomo before it would work.
On android: Settings -> Connections -> Mobile Networks -> Network Operators -> disable "select automatically"
After that, it worked flawlessly.”
“Used the 20GB, then the unlimited plan 5 day plan when I ran out. Both worked great.”
Yes, Roamify offers unlimited data eSIM plans for Japan that can be used for 1 day up to 30 days, with prices ranging from $5.00 to $79.90 USD. The plans provide 5G network coverage and allow tethering, but the speed may be throttled after heavy usage, subject to a fair usage policy.
If the potential for speed restrictions is a concern, users should contact Roamify directly to confirm whether a fair usage policy applies and to inquire about the typical amount of data available at normal speed.
Roamify sells eSIM plans that work throughout Japan and include a phone number that can send and receive calls and texts. The available plans cover a price range from $15 USD for a 1 GB 7‑day package to $105 USD for a 20 GB 365‑day package, with validity periods between 7 days and 365 days. Each plan assigns a dialing code of +1 (or +33 for some Asia‑specific packages), meaning the phone number is not a local Japanese number but still supports inbound and outbound voice calls and SMS. Travelers who need a specific type of functionality are advised to verify details directly with Roamify.
Roamify’s catalog contains 37 single‑coverage eSIM options and 113 multi‑coverage options overall, covering a wide range of destinations including Japan. The exact breakdown of these plans that are specifically dedicated to Japan is not detailed in the dataset, so the precise number of single‑country and multi‑country plans available for Japan cannot be stated. Across all plans, users can expect prices that span from as low as $3.00 up to $160.00, with data allowances ranging from 1 GB to unlimited and validity periods between 1 and 365 days. Some plans support tethering, while others may experience throttled speeds.
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