Best SIM and eSIM for Brazil: data plans, Wi-Fi and phone tips

The table below is a decision shortcut, not a rule. The pattern holds for US, UK, Canadian, Australian, New Zealand and Irish passports alike: no visa or registration step is needed to buy a SIM, but the paperwork at the counter is the same for everyone.

If you land late at night, are staying under two weeks, or move between cities by air, an eSIM removes the first-hour problem. If you are in Brazil for a month or more, plan to make local calls, or want a Brazilian number for WhatsApp and delivery apps, a prepaid SIM from Vivo, Claro or TIM is usually cheaper per gigabyte.

Check your phone supports eSIM before you buy. Most recent iPhones, Samsung Galaxy and Google Pixel models do; some Chinese-market and older handsets do not. Your phone must also be carrier-unlocked.

Buy from a travel eSIM provider or a Brazilian carrier's tourist eSIM, then install it while you still have home Wi-Fi. The profile downloads as a QR code or an app tap. Leave your home SIM active for calls and set the eSIM as the line for mobile data.

Turn on data roaming for the eSIM line only. That sounds wrong but is normal: travel eSIMs roam onto Vivo, Claro or TIM networks, so you get whichever signal is strongest. Data-only eSIMs do not give you a Brazilian phone number, so apps that verify by SMS will still use your home number.

Buy from an official Vivo, Claro or TIM store, an airport kiosk, or a partner shop. Bring your passport. Staff may also ask for a CPF, the Brazilian tax number; visitors do not have one, and some shops will still sell without it while others will not. This is the main reason travellers switch to an eSIM.

Ask the seller to activate the SIM and confirm data works before you leave the counter. Prepaid credit is topped up with a recharge code from a pharmacy, supermarket, newsstand or the carrier's app. Plans are usually sold in 7, 15 or 30 day blocks.

Keep the SIM in the phone for a few minutes after activation; registration can take a little time. If data fails, check the APN settings the seller gave you and restart the phone.

Mobile data is reliable in Rio de Janeiro, São Paulo, Salvador, Recife, Florianópolis and most coastal towns. Expect gaps on long road stretches, in national parks, on Amazon river routes and across much of the Pantanal. Lodges in those areas have Wi-Fi of varying quality, sometimes only in the main building and sometimes only at set hours.

Wi-Fi is common in hotels, hostels, cafés, shopping malls and airports, and is usually free with a password. It is fine for messaging and maps but can be slow for video calls. Public networks are not secure for banking; use your mobile data or a VPN for that.

WhatsApp is the default channel for hotels, guides, drivers and restaurants, so install it before you arrive. Uber and 99 both work well in cities and are cheaper than airport taxis. Google Translate with Portuguese downloaded offline covers menus and signs.

Prepaid data in Brazil is inexpensive by US or European standards. A 7 to 30 day plan typically runs R$20–60 (2026 estimate), and eSIMs for visitors sit around US$5–30 for 1–20 GB depending on length and provider (2026 estimate). Roaming with your home carrier is almost always the most expensive option.

Brazil uses 4G and 5G on bands that most modern phones support; check your model's band list if you bought it outside the Americas. Charging is 127V or 220V depending on the region, with the European-style two-round-pin plug plus a third pin on many sockets, so bring a universal adapter.

If you are in Brazil over New Year or Carnival, expect networks to be congested in Rio and Salvador and book anything you can in advance.