Iphone SMS has green and blue boxes, and blue has light blue and dark blue. What is the difference?

The green one is paid SMS; Then the blue one is imessage only for Apple and Apple mobile phone users, and there is no charge.

1, Apple's mobile phone short message operation is divided into two types, one is light green, and the other is a very common short message that uses the phone bill, which is sent by the mobile phone operator and charged.

2. Blue message is a special message of Apple, which is only aimed at messages between Apple users. It can only be sent to each other between Apple phones, and there is no SMS fee, but it will consume traffic and iMessage information, whether using wireless network or mobile network.

3. SMS on 3.iphone has green and blue boxes, but there is no difference between light blue and dark blue in blue, only blue.

4. The messages displayed in green belong to the messages of traditional operators, that is, they are generally charged according to the number of messages. There is no limit to the sending of this short message, and it can be used regardless of the mobile phone model. That is, mobile, telecommunications and China Unicom. In addition, you can also see a prompt with the words "SMS/MMS" in the SMS text input box.