On iPhone and iPad, the “Messages” app combines both functions. The classic Text message is shown in green, an iMessage is usually highlighted in blue.
An Text message is delivered as usual via the cellular network. An imessage for windows message is sent on the internet.
An SMS could be received by every mobile phone owner. An iMessage can only just be delivered to owners of Macintosh, iPhone, iPad and iPod touch.
Your iOS device immediately detects if the recipient can obtain an iMessage. If this isn’t the circumstance, a classic SMS will be directed.
Whether you mail an iMessage or an Text message, you usually see in the text field (see photo).