The Consumer-Based Brand Equity (CBBE) literature has, in recent years, introduced various CBBE models and measurement scales. This study aims to compare the external validity of the two prominent CBBE models in the fashion retail industry; those introduced by Yoo and Donthu (2011) based on Aaker (1991)’s CBBE concept and Nam et al. (2011). In order to make this comparison, the study collected data from 285 respondents in Turkey. Research findings show that Nam et al.’s (2011) CBBE model is, in the fashion industry context, the more reliable and valid. When the concept of “brand awareness” is included in this model, the psychometric properties of the model are improved.