With in-built tools for sending bulk SMS you can send targeted messages based on specific criteria defined via filters.
Re-marketing SMS campaigns helps to get the customer's attention instantly.
SMS has the ability to reach you anywhere even at the remotest parts of the planet where cell signals are very weak to talk.
Unlike e-mail access where internet connectivity is must, with SMS you can reach to your customers even if they don't have internet connectivity or using a feature phone.
Hardly in your targeted market anyone will be there who doesn't have a cell phone and couldn't receive a SMS.