Where is the SMS draft box for iphone?

There is no SMS draft box on iphone. If the message is not sent after editing, you can exit the message directly and resend it when you need to send it. Let's take the iphone7 as an example to demonstrate:

Tools/Materials: One iphone7 mobile phone.

1, find the SMS on iphone7.

2. Edit the short message.

3. Press the HOME button to exit the edited SMS directly.

When you enter the message again, you will see the message you just edited. If you need to continue editing, you can edit it before sending it.