The biggest Android rivalry in Brazil has a different answer per price range: in entry, Xiaomi delivers more hardware per real; in premium, Samsung returns with cameras, updates and stronger resale.
We built a mixed ranking of both brands by real value from the catalog — and explain below when each one wins.
Under R$ 2,500, yes: Redmi/Poco remain unbeatable on battery+charging. Above that, compare case by case.
Recent A and S models get 4 Android generations + 5 years of security — the best policy between the two.
Samsung has its own network in Brazil; Xiaomi depends on authorized shops — consider it if you don't buy at an official store.