Quectel EC25-AU in Brazil
The Quectel EC25-AU rates good on all 3 networks in Brazil (Vivo, Claro and TIM).
Network by network
| Network | Verdict | Bands in use it supports | Core bands missing |
|---|---|---|---|
| Vivo | ✔ Good 100% | B1 B3 B5 B7 B28 B40 | — |
| Claro | ✔ Good 100% | B1 B3 B7 B28 B40 | — |
| TIM | ✔ Good 100% | B3 B5 B28 | — |
Better-rated models here
In Brazil it is already among the best-rated models.
About the Quectel EC25-AU
Cat 4 · Australia, New Zealand, Latin America · Quectel12
- 4G B1 B2 B3 B4 B5 B7 B8 B28 B40
The maker notes that B2 on the EC25-AU has no receive diversity, so performance drops in weak signal. No B20, B12 or B13: not for Europe or the United States.
Network access: long-term roaming
Many globally deployed IoT devices use multi-network roaming SIMs that can attach to several networks in a country, but some countries restrict long-term roaming by foreign SIMs. A local SIM roaming domestically is not affected.
⚠ Long-term roaming by foreign SIMs is not allowed: Brazil bans permanent roaming by foreign SIMs (Cullen International); IoT devices deployed in Brazil need a local operator’s SIM.3
All networks and bands in Brazil → · The Quectel EC25-AU in 46 countries →
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Sources
- A EC25 variants and their bands, as published by Deutsche Telekom IoT Quectel · 2021
- A EC25 Series specification (bands of every variant), as published by Mouser Quectel · 2020
- B IoT regulation in the Americas: permanent roaming legally permissible in most countries (Brazil bans it); no SIM registration in the US and Canada Cullen International · 2026-02
