ZenSim eSIM Data Plans for Southeast Asia

ZenSim does not provide a truly unlimited high‑speed data eSIM for South East Asia. All of the plans listed for the region have a defined data allowance, such as 3 GB per day for the “Asia+ Unlimited STANDARD” bundles or fixed totals of 20 GB, 10 GB, and 5 GB for the other offerings. Fixed‑data plans can be more economical unless a traveler requires continuous high‑speed data beyond the capped amount, in which case a plan with a larger data supply might be chosen. For example, the Asia+ 20GB – 10 days plan is priced at $32.00 USD and lasts 10 days, while the Asia+ 10GB – 30 days plan costs $29.00 USD and is valid for 30 days.

ZenSim does not provide eSIM plans that include a phone number or SMS capability for South East Asia. The provider offers only data‑only eSIM plans in that region, so receive or make voice calls or send SMSs through a local mobile network. However, common VoIP applications such as WhatsApp, Telegram, and iMessage work over the data connection and can be used for voice and messaging without a traditional phone number or SMS service.

ZenSim’s Asia+ eSIM plan covers Indonesia, Malaysia, Philippines, Singapore, Thailand, and Vietnam in Southeast Asia.