How to send text messages on Apple mobile phone?

1, click the "SMS" icon on the home screen.

2. Click the Edit SMS button in the upper right corner.

3. Type a name or phone number in the To field, or add one or more contacts from the address book. Type the information, then tap Send. To send a photo or video, tap the camera button, select a media file, and then tap Send. It will be displayed in a green message box.

4. If you send iMessage information to other iPhone, iPad and iPod touch users running iOS 5 or above, users can enter their Apple ID. If the other party's mobile phone number also uses the iMessage function, the system will automatically convert the text information into iMessage and send it, and display it in the blue message box.