SMS and MMS texts are the standard ways to send messages from one mobile phone to another via cell phones and smart phones. SMS texts consists of text only whereas MMS texts can include multimedia content.
SMS stands for Short Message Service and is the most common way to send text messages from one mobile phone to another. Americans send an average of 4.1 billion SMS text messages a day, according to ReadWriteWeb.
MMS stands for Multimedia Messaging Service and is considered an extension of SMS technologically. MMS messages can include multimedia content--picture, audio or video.
SMS texts are limited up to 160 characters in length, whereas MMS texts can go up to 1,000 characters, excluding multimedia content. SMS can only have texts whereas MMS can have a picture, a video or audio in the message.