Roamix eSIM Data Plans for Southeast Asia

Roamix does not provide an unlimited data eSIM for Southeast Asia. All of its plans available for this region list a hard data cap, the largest being 50GB. The largest validity period is 180 days, while the shortest is 30 days for 20‑gigabyte plans.

For travelers who need a large amount of data without a pay‑as‑you‑go model, Roamix offers fixed data plans such as the 50GB 180‑day bundle for $101.85 USD and the 20GB 30‑day bundle for $35.80 USD. Choosing a fixed data plan can be a more cost‑effective option unless the user is an extremely heavy data consumer who would prefer the flexibility of a pay‑as‑you‑go balance.

Roamix does not offer any Southeast Asia eSIM plan that includes a phone number or SMS capability. All available Roamix plans for this region are data‑only, meaning travelers cannot receive or make regular voice calls or send SMS messages with the eSIM.

Because there is no phone number, VoIP applications such as WhatsApp, Telegram, or iMessage can be used over the data connection for voice and text communication. However, some destinations in Southeast Asia may block or restrict certain apps, so travelers should verify that the VoIP services they rely on are accessible in the specific countries where they intend to use the eSIM.

Roamix offers several eSIM plans that cover a wide range of Southeast Asian countries. The “Asia (7 areas) /Day” plan includes Indonesia, Cambodia, Malaysia, Philippines, Singapore, Thailand, and Vietnam, while the “Asia (12 areas) /Day” plan covers Indonesia, Cambodia, Malaysia, Singapore, Thailand, and Vietnam. The more extensive “Asia (20 areas) /Day” plan adds Laos to the same list of countries, and the “Asia-20” plan covers Indonesia, Cambodia, Malaysia, Philippines, Singapore, Thailand, and Vietnam. The “Singapore & Malaysia & Vietnam & Th” plan includes Indonesia, Malaysia, Singapore, Thailand, and Vietnam. The “Global (120+ areas) /Day” plan lists Indonesia, Malaysia, Philippines, Singapore, and Thailand as its Southeast Asian coverage. Finally, the “Global139” plan features Brunei in addition to Indonesia, Cambodia, Malaysia, Philippines, Singapore, Thailand, and Vietnam. Thus, the countries covered by Roamix’s eSIM plans in Southeast Asia are Indonesia, Cambodia, Malaysia, Philippines, Singapore, Thailand, Vietnam, Laos, and Brunei.