Why do Apple iPhone SMS have two colors: green and blue?

For users who use iPhone for the first time, when using iPhone to send short messages, they may find that the short messages they send have two colors: green and blue background. PC6· Bian Xiao will introduce why Apple iPhone SMS has two colors, and how to set them when using imessage SMS service. 1. 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. 2. As shown in the figure below, the background color of the SMS you sent is green, indicating that you are currently using SMS from traditional operators, namely mobile, telecom and Unicom. In addition, you can also see a prompt with the words "SMS/MMS" in the SMS text input box. 3. Next, the text message with blue background is highlighted, as shown in the figure below. In fact, this is a service provided by Apple for its own devices, which sends information through the network for free, that is, iMessage information, whether using wireless network or mobile network. 4. Of course, certain conditions are required when sending information with blue background. First, you must use Apple iPhone to open the iMessage function service in Settings-Information. As shown in the figure below, as long as you are currently using an iPhone, you can turn on this function yourself. In addition, the other party also uses Apple's mobile phone, and after opening iMessage service, they can send each other free information. It is worth mentioning that you can not only send free iMessage blue messages between iPhone, but also send messages between iPod Touch, iPad and Mac, as long as both parties enable iMessage service. 7. There are also some tips when using iMessage information. When you encounter network signals from time to time, there will be a problem that information cannot be sent. Therefore, in the setting interface of iMessage, that is, Settings-Information, you can turn it on as an option to send short messages, so that when the network is not smooth, the system will automatically switch from iMessage to traditional short messages without delaying the sending of information. 8. In addition, when sending iMessage information, you can also switch by pressing and holding the information being sent and selecting the option of sending using SMS. 9. The above are some reasons why there are two kinds of short messages with different background colors on Apple iPhone, and some operating skills when sending short messages on iPhone. I hope I can help you.