Xiaomi sends text messages showing green and blue.

What you want to ask is what Xiaomi means by sending a short message showing green and blue.

1, blue: free SMS, not through telecom operators. Only when both parties use Xiaomi mobile phone and turn on the network SMS function can they send and receive blue SMS.

2. Green: charged SMS, charged according to the mobile phone number package SMS, or the other party's mobile phone is not a Xiaomi mobile phone, or the network conditions are not good, and it needs to be sent through the telecom operator.