4S eSIM
4S eSIM is a new global connectivity brand built by a team with strong experience in the telecommunications industry. Our partners provide direct network access to multiple mobile operators worldwide, giving us first-hand network resources and the ability to offer highly competitive pricing. We aim to make staying connected abroad simple, reliable, and affordable for everyone — from frequent travelers and digital nomads to business professionals and international students. With instant activation, flexible regional and global data plans, and no need for physical SIMs or complex KYC verification, 4S eSIM delivers a truly borderless mobile experience.
Promo Code
Unlimited4S eSIM eSIM Data Plans for Southeast Asia
15% OFF
13 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 13 Countries 15% OFF 111 Countries 15% OFF 111 Countries 15% OFF 111 Countries4S eSIM for Southeast Asia FAQ
Does 4S eSIM offer unlimited data eSIM for Southeast Asia?
4S eSIM does not provide a truly unlimited data eSIM for Southeast Asia. All of its plans have a hard data cap; the “Unlimited” label in the plan names only indicates that the high‑speed data is available until the cap is reached, after which the speed is reduced to 1000kbps.
Travelers who need a large amount of data can choose from the fixed data plans that 4S eSIM offers. For example, the Asia+ 50GB – 90 days plan gives 50GB of high‑speed data for 90 days, and the Asia+ 50GB Unlimited – 30 days plan also provides 50GB of data but applies the reduced speed after the limit is reached. These fixed data plans can be more cost‑effective for most users unless they require an extremely high data volume.
Does 4S eSIM offer Southeast Asia eSIM with phone number and SMS?
4S eSIM does not offer any Southeast Asia eSIM plans that include a phone number or SMS capability. The provider only supplies data‑only eSIMs, so travelers will not receive an active mobile number or the ability to send or receive traditional SMS text messages.
If a traveler needs to communicate while abroad, popular VoIP applications such as WhatsApp, Telegram, or iMessage can typically be used over the data connection for voice calls and messaging. However, some destinations may block or restrict these services, so users should verify that the apps they rely on are accessible in Southeast Asia before purchasing a plan.
What countries are covered by 4S eSIM's eSIM plans in Southeast Asia?
The Asia+ plan covers Indonesia, Malaysia, the Philippines, Singapore, Thailand and Vietnam, while the Global plan covers the same countries in addition to Cambodia.
Summarized by AI, Last updated:
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