Is there a difference between MMS and SMS WeChat?

Multimedia message is a short message, which can contain pictures, sounds, words and so on.

Short message is a communication mode in which only one user can send a text message to another user's mobile phone.

Wechat is a chat software that came out later, similar to qq.

Short message is a text message transmitted through the No.7 signaling network. The size of information content is limited to 70 words (140 bytes). Short messages are mainly sent and received end-to-end through mobile phones and between mobile phones and the Internet.

MMS is not a real short message with multimedia information, and it has nothing to do with short messages technically. With the support of GPRS network and WAP wireless application protocol as the carrier, it transmits not only words, but also pictures, animations, sounds and other information.

However, because the receiving process of MMS is very similar to SMS, people will have an illusion that MMS is an extension of SMS.

The first two do not need traffic, and the latter needs traffic.

The first two need money, and the latter generally doesn't.