ChillaxSIM eSIM Data Plans for Japan

ChillaxSIM does not provide a truly unlimited data eSIM for Japan; all of its so‑called unlimited plans actually allow only 1GB per day and will throttle speed to 5000kbps once that daily limit is reached.

Travelers who need a higher, fixed data allowance can choose from ChillaxSIM’s fixed‑data plans instead. For example, the 50GB plan valid for 60 days costs $34.95 USD, and the 30GB plan for 30 days is priced at $31.13 USD. These plans offer a larger data budget at a set price, and the speed reduction after the fixed allowance is applied is 128kbps.

ChillaxSIM does not provide Japanese eSIM plans that include a phone number or SMS capability. The company only offers data‑only eSIMs for Japan. Travelers who want to make voice calls or send text messages can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection.

ChillaxSIM lists 30 single‑country data plans for Japan and no multi‑country plans are sold exclusively for Japan. The plans range from $1.50 to $70.00 and offer data caps between 1 GB and 50 GB over validity periods of 1 to 60 days. Some plans provide a fixed data amount for the whole validity period while others give a daily data cap, allowing a set amount of data each day. Tethering is allowed on several plans, though some may incur reduced speeds of 128 kbps or 5000 kbps under certain conditions.