Best eSIM for Brazil

Brazil has 4 mobile networks: Vivo (Telefônica — ~38% market share, the only carrier with 100% of Brazilian municipalities covered by 4G; widest 5G geographic reach), Claro (~33% market share, fastest 5G speed in dense urban areas — Ookla 5G speed leader 2025), TIM (~23%, competitive pricing, solid 4G in cities), and Oi (in restructuring, less consistent). For São Paulo, Rio, Brasília, Salvador, Recife, all four work in city centres. Coverage drops significantly off the coast: Amazon interior (deep jungle past Manaus), Pantanal, Chapada Diamantina rely on Vivo's 700 MHz spectrum and have weak-or-no signal on competitors. For Amazon expeditions, no mobile network is reliable past major river towns — consider a satellite communicator. Verify which underlying network your travel eSIM routes through; Claro or Vivo are the safest defaults. Download offline maps for all routes before leaving São Paulo, Rio, Salvador or Manaus.

Brazilian local SIM cards (Vivo, Claro, TIM, Oi) require CPF (Brazilian tax ID) or passport for activation. Some operators charge a registration fee of R$10–20 (~$2–4) for the SIM and registration process. Tourist plans range from TIM's "Tim Visitor" R$25 (~$4) for 1.5 GB / 7 days, to Claro's R$100 (~$17) for 4 GB. International travel eSIMs are exempt from this registration — they roam onto Brazilian networks via international agreements and operate without local paperwork. Practical note: Brazil's Federal Supreme Court has occasionally suspended specific apps (WhatsApp 2016, Telegram 2022, X/Twitter 2024) for short periods following court orders. These are exceptional, time-limited events rather than persistent restrictions, but worth being aware of for high-profile messaging dependencies — keep an alternative communication channel (email, alternative messaging) for any week-long trip.