1. A mobile phone with essential calling and texting features, without advanced smartphone capabilities
My grandmother uses a basic phone because she only needs to make calls.
Minha avó usa um telefone básico porque ela só precisa fazer ligações.
2. A simple, economical mobile device intended for fundamental communication purposes
He switched to a basic phone to reduce distractions and save money.
Ele mudou para um telefone básico para reduzir distrações e economizar dinheiro.