AlpineSIM eSIM Data Plans for Japan

AlpineSIM does not provide an unlimited data eSIM plan for Japan. The provider’s catalog lists only fixed data bundles with set allowances and validity periods. For example, AlpineSIM Japan – 50GB / 30 Days offers 50 GB of data for 30 days at $24.44 USD, and AlpineSIM Japan – 50GB / 180 Days supplies the same 50 GB over 180 days for $40.26 USD. Similar bundles are available, such as 20 GB for 30 days and 20 GB for 180 days, each priced accordingly. Choosing a fixed data plan can be more cost‑effective for most travelers unless very heavy data usage is expected.

AlpineSIM does not provide a Japan eSIM that includes a phone number or SMS capability. All of the AlpineSIM plans for Japan are data‑only, so travelers will not receive a local number for incoming or outgoing calls or texts. Instead, users can rely on VoIP applications such as WhatsApp, Telegram, or iMessage to make calls and send messages over the data connection. However, some services may be restricted in certain destinations, so it is wise to check whether the apps you depend on are accessible in Japan before purchasing a plan.

AlpineSIM offers 58 single‑country plans and 228 multi‑country plans that include Japan. The plans cover a price range from roughly $0.29 to $288.18 and data caps from 100 MB up to 50 GB. Some plans provide a fixed data amount, while others impose a daily data cap, giving customers flexibility to choose the option that best matches their usage patterns.