What Is eSIM and How Does It Work?
Learn what eSIM is, how a digital SIM card works, which devices support eSIM technology, and how it differs from a traditional SIM card.
What Is IMEI: Where to Find the Number, What the Digits Mean, and How to Check It
At some point, everyone asks: what is IMEI and why is it needed on a phone? The short answer is simple: it is a unique 15-digit device identifier that helps networks recognize your smartphone and helps the carrier block it in case of theft in Moscow or abroad.
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How Many eSIMs Can Be Added to a Phone
This material will help you understand the limits for iPhone and Android, choose a plan for your trip, and set up a digital SIM without surprises. It is convenient to connect a travel profile through “eSimka” so you do not waste time looking for a local sales point at the airport.
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Data Roaming: A Traveler’s Guide for 2026
In simple terms, roaming means using a partner network of your mobile carrier outside your home coverage area. For internet access abroad, the system uses data traffic and charges it according to the terms of the visited network. In summer 2026, eSIM options are popular among Moscow residents because they help avoid overpaying during flights and international trips.
Helpful GuidesTraveler Types
