Multimedia Messaging Services (MMS) can be an effective tool for grabbing your customer’s attention. It’s essentially a visual version of an SMS. The price of an MMS is much higher than an SMS, and it’s largely determined by the size of your image or animated GIF.
MMS Marketing Examples
Here are the recommended sizes:
480px by 480px
640px by 640px
Other sizes:
640px by 1138px
1080px by 1920px
480 x 640 px (tall)
480 x 720 px (tall)