No need for data connection, which can be (more) expensive and energy intensive. The phone can be in deep sleep, consuming nothing, and yet deliver texts in a t

No need for data connection, which can be (more) expensive and energy intensive. The phone can be in deep sleep, consuming nothing, and yet deliver texts in a timely manner. Sometimes in bad network conditions, texts work while calls and data fail. Some pitfalls are reliability and lack of encryption and usually requiring a phone (which almost requires running non free today in practice, and having an entity knowing your position at all time and exposition to electromagnetic waves) In France texts are usually unlimited in any offer, starting at 2€