On iPhone and iPad, the “Messages” app combines both functions. The classic SMS is shown in green, an iMessage is highlighted in blue.
An Text message is delivered as normal via the mobile phone network. An download imessage for pc communication is sent online.
An SMS can be received by every cellular phone owner. An iMessage can only be sent to owners of Mac pc, iPhone, iPad and ipod itouch.
Your iOS system quickly detects if the recipient can obtain an iMessage. If this isn’t the circumstance, a classic SMS will be dispatched.
Whether you give an iMessage or an SMS, you constantly see in the written text field (see photo).