
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 data eSIM for Southeast Asia.
The plans that carry the word “Unlimited” – Unlimited – 7 days and Unlimited – 30 days – each give 3 GB of high‑speed data per day and slow down to 1000 kbps once that daily limit is reached.
If a traveler needs more data, Simsima offers fixed‑data plans with larger allowances. For example, a 20 GB plan is available for 30 days or 365 days, a 10 GB plan for 30 days, and a 5 GB plan for 30 days or 60 days. These plans provide high‑speed 5G coverage across many Southeast Asian countries and may be more cost effective unless an extremely heavy data user is required.
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.
Simsima’s eSIM packages include coverage across several Southeast Asian nations: the first package lists Brunei, Indonesia, Cambodia, Laos, Malaysia, Philippines, Singapore, Thailand, Timor‑Leste, and Vietnam, while the second package covers Indonesia, Cambodia, Laos, Malaysia, Philippines, Singapore, Thailand, and Vietnam. Thus, the countries in Southeast Asia that are covered by Simsima’s eSIM plans are Brunei, Cambodia, Indonesia, Laos, Malaysia, Philippines, Singapore, Thailand, Timor‑Leste, and Vietnam.
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