Huawei E3372h-320 in Brazil
The Huawei E3372h-320 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 Huawei E3372h-320
Dongle · Cat 4 · USB dongle · Europe, Asia-Pacific and most of the world · Huawei12
- 4G B1 B3 B7 B8 B20 B28
Per its GCF certification record: LTE B1, B3, B7, B8, B20 and B28, no TDD. Some listings quote the bands of the E3372h-153 (without B28), so check the suffix when buying.
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 Huawei E3372h-320 in 46 countries →
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Sources
- A GCF certification record 8575: Huawei E3372h-320 (bands certified on 2020-01-08) Global Certification Forum · 2020-01-08
- C Huawei E3372h-320 listing (bands) SincereOne · 2026-10-03
- 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
