
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.
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4S eSIM does not provide a genuinely unlimited data eSIM for Asia. The plans that include “Unlimited” in their names, such as Asia+ 3GB Unlimited or Asia+ 5GB Unlimited, actually contain a fixed high‑speed data allowance (3 GB, 5 GB, etc.) and after that limit the speed drops to 1000 kbps.
Travelers who need large data amounts can choose fixed data plans that offer larger bundles, for example the Asia+ 50GB plans that are available for 5, 7, 15, 30 or 90 days, or the Asia+ 20GB Unlimited plan that provides a 4 GB/day allowance for five days. These fixed bundles can be more cost‑effective for most users unless a traveler is an extremely heavy data consumer.
4S eSIM does not provide an Asia eSIM that includes a phone number or SMS capability. Only data‑only eSIM plans are available from this provider for Asia. Travelers who need voice or messaging can set up popular VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but some destinations may restrict access to these services so callers should verify availability before purchasing.
The Asia+ plan includes China, Hong Kong, Indonesia, Japan, South Korea, Malaysia, Philippines, Singapore, Thailand, Taiwan, Vietnam, while the Global plan covers United Arab Emirates, Armenia, Azerbaijan, Bangladesh, Bahrain, China, Georgia, Hong Kong, Indonesia, Israel, India, Jordan, Japan, Kyrgyz Republic (Kyrgyzstan), Cambodia, South Korea, Kuwait, Kazakhstan, Sri Lanka, Malaysia, Oman, Philippines, Pakistan, Qatar, Saudi Arabia, Singapore, Thailand, Turkey, Taiwan, Uzbekistan, Vietnam.
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