Monty eSIM eSIM Data Plans for Japan

Monty eSIM does not provide an unlimited data plan for Japan. All plans for Japan have a fixed data allowance, with the largest available package offering 100GB for 30 days.

Travelers can choose from these fixed data plans, such as the 50GB 30‑day package priced at $32.99 or $51.99, or the 100GB 30‑day plan for $64.50. For extended stays or coverage beyond Japan, Monty eSIM offers the Asia Plus plan, which supplies 50GB for 180 or 365 days and covers Japan plus nine other countries. Fixed data plans can be more cost‑effective for most users unless extremely heavy data usage is expected.

Monty eSIM does not provide a Japan eSIM that includes a phone number or SMS capability; the provider offers only data‑only plans for Japan.

Travelers wishing to communicate while in Japan can use popular VoIP applications such as WhatsApp, Telegram, or iMessage, which operate over the data connection and allow calls and messaging without a traditional phone number or SMS function.

Monty eSIM offers 16 single‑country data plans for Japan and 17 multi‑country plans that include Japan. Across all of these options the prices range from roughly $2.50 to $134.50, while data caps vary between 1 GB and 100 GB. The plans differ chiefly in data volume and validity period, with higher‑priced plans usually providing larger data allowances and longer activation periods.