SMT5600 vs. Razr. Which name sticks with you?

I don't understand cell phones. I mean I don't understand the logic behind the marketing. Nokia, Audiovox, LG, these are all powerful brands. But do people decide they want an Audiovox phone? I don't think so. Instead, they decide they want a particular Audiovox phone, say the SMT5600.

I've seen this phone. I like this phone. But I have trouble remembering the name. Because it's not a name. It's a bunch of letters and numbers. The Motorola Razr, on the other hand. I remember. Surely part of the phone's success comes from their smarts in using the opportunity of a phone's name to help market it.