
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 any plan that offers truly unlimited high‑speed data for Central Asia. All of the listed plans have a definite data cap in the Data cap column, ranging from 3GB up to 50GB, and a fixed validity period. These plans are fixed data plans; after the allotted data is used the connection is throttled to a reduced speed of 1000kbps.
If a traveler wants a large amount of data, 4S eSIM offers high‑allowance fixed plans such as the Caucasus+ 50GB plan, valid for 5 to 90 days, or the Global 50GB plan, valid for 5 to 30 days. Each of these gives a generous amount of data, but the data supply stops once the cap is reached.
4S eSIM does not offer Central Asia eSIM plans that include a phone number or SMS capability. The provider’s Central Asia offerings are strictly data‑only, so travelers will not receive an assigned local phone number or inbound/outbound SMS.
However, you can still use common VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection for voice calls and messaging. Note that some destinations within Central Asia may block or restrict access to specific apps or VoIP services, so it is advisable to verify that the apps you rely on are available before purchasing a plan.
The 4S eSIM Caucasus+ plan and the Global plan both include coverage in Kyrgyz Republic (Kyrgyzstan), Kazakhstan and Uzbekistan; these are the only Central Asian countries listed in the provider’s offerings, and no additional Central Asian nations such as Tajikistan or Turkmenistan appear in either plan.
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Discover some of the most popular eSIM brands offering plans for Central Asia