
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 provide a truly unlimited high‑speed data eSIM for Southeast Asia. The plans titled “Unlimited” give a fixed daily allowance of 3 GB; once that limit is reached the speed is throttled to 1000 kbps, so the data is not unlimited in the usual sense.
Travelers who need larger data volumes can choose from Simsima’s fixed‑data plans, such as the 100 GB plan valid for 180 days or the 50 GB plan valid for 90 days, both of which offer full‑speed data within the allocated amount. These larger‑allowance options can be more cost‑effective for users who consume significant data during their stay in Southeast Asia.
Simsima does not provide eSIM plans in Southeast Asia that include a phone number or SMS capability; all available plans are data‑only. Travelers who need messaging or voice communication over the data connection can use VoIP apps such as WhatsApp, Telegram, and iMessage. However, some destinations may restrict access to these services, so it is advisable to verify that the apps you intend to use are available in the specific country before purchasing a Simsima eSIM.
The two unnamed plans offered by Simsima cover the following Southeast Asian countries: the first plan includes Indonesia, Cambodia, Laos, Malaysia, Philippines, Singapore, Thailand, and Vietnam; the second plan covers those same eight nations plus Brunei and Timor‑Leste, providing the same core ASEAN coverage with the additional two countries. These are the only Southeast Asian destinations included in Simsima’s eSIM offerings.
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