There is a limit to sending pictures, videos and other multimedia files via mobile MMS, generally around 300k per message. If you have videos saved on your phone, it is recommended to connect your phone to your computer via a data cable to export them.

MMS can send 30-second videos and can be compressed, but it mainly depends on the memory. Its biggest feature is that it supports multimedia functions and can deliver comprehensive content and information, including text, images, sounds, data and other information in various multimedia formats.

MMS is the abbreviation of Multimedia Messaging Service, which is translated into Chinese as Multimedia Messaging Service, also known as "MMS". It is the latest business developed in accordance with the standards of 3GPP and the WAP Forum regarding multimedia information.

Its biggest feature is that it supports multimedia functions. With the support of GPRS, CDMA 1x, 3G, and EDGE, it can transmit video clips, pictures, sounds, and text using the WAP wireless application protocol as a carrier. In addition to transmission between mobile phones, it can also be transmitted between mobile phones and computers.

The unique feature of a mobile phone with MMS function is its built-in media editor, which allows users to easily write multimedia messages. If the phone has a built-in or external camera, users can create PowerPoint-formatted messages or electronic postcards and send them to friends or colleagues.

This application service has gradually matured and become the mainstream SMS format.