SMS vs. MMS

The meanings of SMS and MMS are below but I found an excellent page that explains how they are both used in marketing in the link that follows.

 I will need to look at my cell plan to see if MMS is automatically included or if they charge an additional fee. 

SMS - short message service - this is text only. (limit of 160-170 characters; splits into two messages if it is more)

MMS- multimedia message service - this is photos, videos, audio that can be sent from phone to phone.

http://txt180.com/blog/tips/sms-and-mms/