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.

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.
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.
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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 provides a range of unlimited data eSIM plans specifically for Japan, covering validity periods from 1 day up to 30 days. The prices start at $2.80 USD for a 1‑day plan and go up to $75.00 USD for a 30‑day plan, with each plan including an unlimited data allowance, tethering permission, and a maximum speed of 20000 kbps. The advertised speed may be throttled after heavy usage, so the actual throughput could reduce once a fair usage threshold is reached.
Because iRoamly applies a Fair Usage Policy that limits speeds after a certain amount of data is consumed, travelers who require consistent high speeds should contact iRoamly directly. This will confirm whether a specific FUP applies to their chosen plan and clarify how much data can be streamed at normal speed during the validity period.
iRoamly does not provide a Japan eSIM that includes a phone number SMS service. The provider offers only data‑only plans for Japan, so travelers cannot make or receive regular phone calls or text messages. However, call and messaging apps that operate over the internet, such as WhatsApp, Telegram, and iMessage, work over the data connection and can be used for voice, video, and text communication.
The dataset supplied does not contain a provider‑level or country‑level breakdown of plans. Because of that, the exact number of iRoamly data plans that are available for Japan cannot be determined from the information provided.
Summarized by Gen AI. Last updated: