What is the difference between sms and mms?

1. Different concepts

The Chinese name of sms is short message service, which is a storage and forwarding service. In other words, short messages are not sent directly from the sender to the recipient, but are always forwarded through the SMS service center. If the recipient is not connected (perhaps the phone is turned off), the message will be sent when the recipient connects again.

MMS is the English abbreviation, which can be the abbreviation of Membership Management System, and its Chinese translation is Membership Management System. It can also be the abbreviation of Multimedia Messaging Service, which is translated into Chinese as MMS.

2. Different content capabilities

SMS can only send and receive text messages, and each message can only carry a maximum of 140 bytes of character information or 70 Chinese character information.

MMS message size breaks through the 140-byte limit, ranging from dozens of K bytes to hundreds of K bytes. Users are almost completely unaffected by the amount of information and can complete it in one message. express one's thoughts freely. MMS can support a variety of data formats, including major graphics, image, sound, and animation format standards.

3. Different network carrying methods

SMS uses the GSM signaling channel. Due to the limited transmission capacity of the signaling channel, it is impossible for SMS to transmit large amounts of data, so SMS-based applications cannot be carried out arbitrarily. It must be an application with a small amount of data.

In terms of network bearing methods, mms supports GSM, GPRS, WCDMA, CDMA2000 and other bearing modes. In the future, it will support more 4G?LTE network bearing modes.