USR IOT USR-G771-E in Brazil
The USR IOT USR-G771-E 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 63% | B1 B3 B7 B28 | — |
| Claro | ✔ Good 83% | B1 B3 B7 B28 | — |
| TIM | ✔ Good 60% | B3 B28 | — |
Better-rated models here
In Brazil it is already among the best-rated models.
About the USR IOT USR-G771-E
DTU · Cat 1 · RS232/RS485 DTU · Europe · USR IOT1
- 4G B1 B3 B7 B8 B20 B28
LTE Cat 1 for the mainstream European bands, with 2G fallback; no B5, so not for the Americas. The Chinese USR-G771 has different bands; do not mix them up.
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.2
All networks and bands in Brazil → · The USR IOT USR-G771-E in 46 countries →
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Sources
- C USR-G771-E listing (bands, links to the maker’s datasheet) Gotronik · 2025-04-19
- 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
