
iRoamly could be the most versatile travel eSIM brand, supporting fast and stable internet in over 140 countries. It offers a wide range of package options including Daily, Total, Unlimited, as well as packages with calls and SMS.
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 internet worked perfectly everywhere – airports , even on road trips. No annoying "loading..." screens! Plus their customer chat is LEGIT. Messaged them at 1AM (jetlag lol) and replied in 2 minutes. She literally stayed on chat while I set it up, double-checked everything. Way cheaper than my phone plan back home. Never going back to regular SIM cards!”
“I used their unlimited 3-day plan and could use more than 20GB of data, so it seems to be indeed unlimited. However, the speed was capped at 10 Mbps the whole time.
Traffic was routed through Hong Kong, so the latency was not great but not too bad.
The issue with a Hong Kong IP is that I couldn't access some services like ChatGPT.”
iRoamly does not provide an unlimited data eSIM plan for Japan. All of its Japan‑specific offerings have a fixed data cap, the largest being 90 GB for a 365‑day validity period. Travelers who need a large data allowance can choose one of these fixed data plans, such as the Asia‑12‑Countries‑eSIM‑90GB‑365 Days‑Total or the Japan‑Local‑eSIM‑50GB‑3 Days‑Total. Fixed data plans can be more cost‑effective for most users, unless the traveler is an extremely heavy data consumer who would benefit from a truly unlimited plan.
No, iRoamly does not offer an eSIM for Japan that includes a phone number or SMS capability. The provider offers only data‑only eSIM plans for this destination. Travelers who need voice or text can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some apps or VoIP services may be blocked or restricted in Japan, so it is recommended that travelers confirm that the services they rely on are accessible before purchasing a plan.
iRoamly provides 142 single‑country data plans for Japan, and no multi‑country plans that include Japan are listed. The plans span a price range from $0.00 to $257.00 and a data cap range from 500 MB up to 90 GB, with validity periods of 1 to 365 days. Some plans offer a fixed data amount, while others provide a daily data cap; the fixed‑data plans give a set amount of data that remains available for the entire validity, whereas the daily‑cap plans reset the available data each day. The available options are marked as single‑coverage or multi‑coverage accordingly.
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