The study aims to test and analyze hypotheses related to the consumer commitment to the brand / product. Based on an construct analysis related to the consumer commitment identified in the literature, the study aims to evaluate their relationship with the final intention of brand switching, seeking to identify significant effects between these constructs. The literature review presents and discusses a range of models and analyzes according to the study by Bansal, Irving, and Taylor (2004) and also addresses the proposed two-dimensional model of commitment, previously suggested by Meyer and Allen in their studies in the decade of 90. Through a survey, a sample was collected from 201 consumers of mobile telephony services, all smartphones users and residents of Rio de Janeiro. Data analysis and testing of the proposed hypotheses was performed using structural equation modeling, with the ratios evaluated by defining a twodimensional model of commitment, addressing relationships and instrumental. It has been proven in hypotheses test the conclusions once discussed in the literature: in fact, the antecedents: satisfaction, trust, alternative attractiveness and switching costs have direct effects on commitment types studied, which in turn have direct and negative effect on the switching intentions, explaining 59 per cent of final intention. The antecedents, when mediated by their commitments, also have an indirect effect on switching intention. The structural model proposed in this study illustrates these relationships and their significance when it comes to consumers and products. It should be noted, unlike the basic model of the study by Bansal, Irving, and Taylor (2004), the affective commitment was more strongly related to switching intention than the continuance commitment, but both showed good levels of significance, also present in other relationships.