Answer: Your plan's validity period (e.g., 7 days or 30 days) only begins when your eSIM connects to the local mobile network in your destination country.

The Benefit: This means you can safely purchase and install your eSIM weeks or even months before your trip. Your days will not start counting until you actually arrive and connect to the internet.

Answer: Our dedicated support team is available 24/7 to help you. If you encounter any connection problems, you can reach us immediately via Live Chat on our website or by email. We are here to ensure you get back online as quickly as possible. 

Answer: Customer satisfaction is our priority. If there is a technical issue with your eSIM caused by us or the network provider, and our support team cannot resolve it, we offer a 100% Money-Back Guarantee. You can buy with confidence. 

 Unlike buying a physical SIM card at the airport kiosk—which requires waiting in line and scanning your passport for registration—Cellesim eSIM does not require ID registration for data-only plans. You can buy it online and install it within minutes, skipping the paperwork and airport queues completely. 

Answer: Yes! Almost all Cellesim plans support the "Personal Hotspot" feature. You can freely share your internet data with your family, friends, or your other devices like tablets and laptops. 

Answer: Yes, you can easily top up your active plan. Simply log in to the "My eSIMs" section on our website and select the eSIM you wish to extend.

Important: Top-ups are only possible for eSIMs that are currently active. If your plan's validity period has already expired, you cannot top it up; you will need to purchase a new eSIM package.

 Most modern smartphones released by Apple, Samsung, and Google in recent years are compatible with eSIM technology. To be sure if your specific model is compatible, please check our complete [list of eSIM supported devices]. 

Answer: Activation is a simple two-step process:

1. Installation (Before You Fly): Scan the QR code sent to your email (Settings > Mobile Data > Add eSIM). We recommend doing this at home or at the airport while you have Wi-Fi.
2. Activation (Upon Arrival): Once you land, select your Cellesim line as your "Mobile Data" source. Most importantly, turn ON "Data Roaming" in your phone settings for the new eSIM to start the connection. Note: Your data plan validity only begins when you connect to the network at your destination.

Answer: Most Cellesim plans are data-only packages. This means they do not come with a local phone number for traditional calls or SMS.

The Solution: You can use your high-speed internet data to make voice and video calls via apps like WhatsApp, FaceTime, Messenger, Telegram, or Skype. Since these apps use the internet, you can stay connected with everyone without needing a standard phone number.

Answer: Yes. Cellesim partners with top-tier local network providers in every country to ensure you get the best possible coverage and 4G/5G speeds.

Note: Just like any mobile service, signal strength may vary in very remote areas, mountains, or islands. However, in cities and tourist destinations, you will enjoy a fast and stable connection just like a local.

Answer: Absolutely not. At Cellesim, we believe in 100% transparency. You only pay the price you see on the screen. It is a one-time prepaid purchase with no contracts, no recurring subscriptions, and definitely no surprise roaming bills. 

 You must set expectations. You will have excellent 4G/5G coverage in all major cities (Rio de Janeiro, São Paulo, Salvador) and in the main Amazon city of Manaus. However, once you are on a boat on the Amazon River or at a remote jungle lodge, you must expect the signal to be intermittent or completely non-existent. This eSIM is for cities, not for deep jungle expeditions. 

You must set expectations. During the peak of Carnival (especially at the Sambadrome or at a bloco with 1 million people), the local networks in Rio are under extreme strain. While our eSIM uses the best local networks (like Vivo/Claro), you should expect data to be slower than normal during these peak hours. It will still be more reliable for sending WhatsApp messages than a congested public Wi-Fi. 

 To give you the best coverage in this vast country, our eSIM connects to Brazil’s premium Tier-1 networks, typically Vivo or Claro. These are widely regarded as the best providers with the most extensive 4G coverage, ensuring you stay connected from the beaches of Copacabana to the business district of São Paulo. 

 This specific plan is valid only within Brazil. This is a critical point. If you are visiting Iguazu Falls, your connection will stop the moment you cross the bridge to the Argentinian side. For a seamless multi-country trip, we highly recommend our Latin America Regional eSIM to stay connected in both Brazil and Argentina. 

No! This is the single biggest advantage of our eSIM. Buying a physical local SIM card in Brazil (from TIM, Claro, or Vivo) is famously difficult as it requires a CPF (Cadastro de Pessoas Físicas) for activation, which tourists do not have. Our eSIM is a roaming plan that bypasses this entire bureaucratic process. You can buy online and connect instantly.