Use iMessage to send and receive messages with other iMessage users.
INSTRUCTIONS & INFO
iMessage is built into iOS versions 5 and later, and allows you to send unlimited text, photos, videos, locations, and contacts using Wi-Fi or cellular data from your iPhone or iPad. To turn iMessage on or off, from the Home screen select the Settings app.
Note: iMessages are billed as data usage when sent over a cellular data connection. Messages will be billed as text messages when sent to other device types, or to iOS devices using an earlier version of iOS. You need a valid phone number or Apple ID to use iMessage on iPhone.
Scroll to and select Messages.
Select the iMessageswitch to turn on or off.
Note: If you get an error when trying to activate iMessage, get help.
To send an iMessage, from the Home screen select the Messages app.
Select the Compose icon.
Enter a phone number or email address, or select the Add icon to choose a contact.
Type in your message, or select the Camera icon to attach a photo or video or select the Microphone icon to send an audio message.
Select the Send icon to finish.
iMessage lets you send text messages, photos, and videos to other iOS devices or Macs over Wi-Fi. SMS/MMS lets you send text messages and photos to other cell phones or devices. With iMessage you can also see when someone is replying to you with the "..." bubble icon.
Note: You can tell which type of message you're sending by the color of the Send button and text bubble. iMessage: Send button and text bubbles are blue. SMS/MMS: Send button and text bubbles are green.
A red exclamation mark appears if your recipient didn't get the message. Select the exclamation mark to try to send the message again.
To react to a specific message, select and hold the desired message then select the desired reaction.
To forward a message, select and hold the desired message then select More....
Select the desired message(s), then select the Forward icon. Enter the desired contact or phone number, then select the Send icon.
To delete a message, select and hold the desired message then select More....
To delete all messages, select Delete All. To delete a specific message, select the desired message(s) then select the Delete icon.
Select Delete Message.
Note: After you delete a message, you can recover it only by restoring from a backup.
To delete an entire conversation, from the Message screen select and drag the desired message to the left.
Note: After you delete a conversation, you can recover it only by restoring from a backup. Learn more from Apple support article: Send messages with your iPhone If you can't send or receive messages on your iPhone, get help.