
Simsima is an eSIM marketplace offering instant connectivity in 190+ countries. Travelers can browse, purchase, and activate eSIMs directly from their phone — no physical SIM swap needed. Plans range from 1-day local passes to multi-country regional bundles, with coverage across Europe, Asia, the Americas, and beyond. Simsima supports all eSIM-compatible devices and offers 24/7 customer support based in Barcelona.
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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.
Simsima does not offer a truly unlimited data eSIM for East Asia. The plans that carry the name “Unlimited” actually give 3 GB of high‑speed data per day and, after that amount is used, the speed is throttled to 1000 kbps. This is a fixed data plan with a hard cap, not an unlimited plan.
If a traveler needs more data, Simsima offers several large fixed‑data options. For example, a 100 GB plan is available for 180 days, and a 50 GB plan can be bought for 30 days. These fixed‑data plans are often more cost‑effective for users who need a lot of high‑speed data during their stay in East Asia.
Simsima does not provide eSIM plans for East Asia that include a local phone number or SMS capability. Only data‑only plans are available for travelers to the region. Travelers who need voice or messaging can use popular VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but some destinations in East Asia may block or restrict these services, so it is advisable to confirm that the apps a traveler relies on are accessible before purchasing.
The Simsima eSIM plans cover Japan, China, South Korea, Hong Kong, Macau, Taiwan, and Mongolia in East Asia.
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