eSIM for Brazil: from Rio's Carnival to the Amazon jungle

In Rio, the network is fast and reliable in tourist areas — Copacabana, Ipanema, Santa Teresa, and the viewpoints at Christ the Redeemer and Sugarloaf Mountain. For a week in the city with beaches, museums and cable car trips, 5-8 GB is usually enough.

During Carnival and other big festivals, the network faces peak load: hundreds of thousands of people fill the streets and stands at once, and even with good coverage, speeds can noticeably drop during the parade's busiest moments. On those days, it's worth saving addresses, tickets and your group's meeting point in your phone's notes beforehand, rather than counting on a fast page load in the crowd. The same applies to beach days at Copacabana or Ipanema in high season — with more people and nearby Wi-Fi hotspots in use, mobile speeds near the beach can also dip below normal.

Sao Paulo is the largest city in the Southern Hemisphere and Brazil's business hub, with even coverage nearly everywhere — from business districts like Faria Lima to outlying neighborhoods. For a business trip with video calls, presentations and navigating a dense city, it's better to take a plan with headroom, 10 GB or more, especially with meetings across town and constant map use due to traffic.

Unlike resort towns, data use here stays high in the evening too — restaurants, food delivery and ride-hailing are in demand at any hour in a megacity. It's also worth knowing Sao Paulo stretches for dozens of kilometers, and getting across town to a meeting often takes an hour or more, so navigation and ride-hailing apps run almost continuously through a full working day.

Iguazu, the falls on the border with Argentina, is usually reached by flight from Rio or Sao Paulo, and the town of Foz do Iguacu itself has stable coverage. But inside the national park, on trails along the cascades and especially on boat tours right up to the falls, signal often disappears — it's a remote natural area, not urban infrastructure.

The Amazon goes further still: many lodges and river cruise boats are reached only by boat or small plane, and coverage there can be absent for several days in a row. It's worth planning for this in advance and letting family know you may be unreachable.

Brazil speaks Portuguese, not Spanish, and the two languages differ enough that a Spanish phrasebook won't really carry a conversation with a taxi driver or a waiter. A phone translator is one of the most useful tools on the trip: translating a menu, explaining an address to a driver, checking a booking's details.

In Rio's major tourist zones, staff often speak English, but outside the hotel areas and in smaller towns like Foz do Iguacu, it's better to rely on a translator rather than spoken English.

Brazil is enormous, and a Rio – Iguazu – Amazon route almost always means several domestic flights rather than driving. That means part of your data goes toward checking in, boarding passes and tracking schedule changes right at the airport, so it's worth choosing a plan with enough headroom for the whole route, not just city days. Distances between Brazil's regions are comparable to flying between different European countries, so it helps to have data in reserve for a delayed flight or a layover in an unfamiliar airport.