iPad Air (2019)
Setting up your tablet for iMessaging
You can send iMessages to phone numbers or email addresses if the recipient has a device which supports iMessage. To set up your tablet for iMessaging, you need to activate your Apple ID.
Step 1 of 4
Press Settings.
Step 2 of 4
Press Messages.
Step 3 of 4
Press the indicator next to "iMessage" to turn on the function.
Step 4 of 4
Press the Home key to return to the home screen.