1. A mobile phone with a hinged design that opens and closes like a book, popular in the early 2000s
She still uses a flip phone instead of a smartphone.
Ela ainda usa um telefone dobrável em vez de um smartphone.
2. A retro or nostalgic reference to early mobile phone technology
He bought a flip phone to disconnect from constant notifications.
Ele comprou um telefone dobrável para se desconectar das notificações constantes.