nextSIM eSIM Data Plans for Southeast Asia

NextSIM does not provide a truly unlimited high‑speed data eSIM for Southeast Asia. All plans that carry “Unlimited” in the name are in fact capped, either at 1GB total or 1GB per day. Once the allocated data is used, the connection speed drops to 512kbps for standard plans or 2000kbps for the Plus variants, meaning that the data allowance is not unlimited.

Travelers who need larger or non‑throttled data quantities can instead choose from nextSIM’s fixed‑data eSIM offers. For instance, the eSIM Asia 20GB 30Days Standard plan delivers 20GB of high‑speed data for 30 days at $51.71 USD, while the eSIM GLOBAL 20GB 30Days Standard provides the same amount for $159.21 USD. Higher‑tier options such as the eSIM GLOBAL 30GB, 40GB and 50GB 30Days Premium plans supply even more data, making them more cost‑effective for users who want to avoid speed reductions.

NextSIM does not provide an eSIM plan for Southeast Asia that includes a phone number with inbound or outbound SMS capability. All plans available from this provider for the region are data‑only; they offer high‑speed internet on 4G or 5G networks but do not include voice or SMS services. Travelers can still use popular VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection for calls and messaging.

nextSIM offers a range of eSIM plans that cover multiple Southeast Asian countries. The eSIM Asia Standard, eSIM Asia Economy, eSIM Global Standard, eSIM Global Unlimited Standard, and eSIM Global Unlimited Plus Standard plans all include Indonesia, Malaysia, Singapore, Thailand, and Vietnam. The eSIM Oceania Premium plan also covers Indonesia, Malaysia, Singapore, and Thailand while adding the Philippines to the roster. The eSIM GLOBAL Premium plan expands on the core set by adding Cambodia and Laos and retains coverage of Indonesia, Malaysia, Singapore, Thailand, Vietnam, and the Philippines. All plans that list regions outside of Southeast Asia do not affect the country coverage listed above.