This study conducted to test mediation effect of brand commitment based on Commitment-trust theory in relationship marketing in the case of Indian smartphone market. Conceptual framework of this paper contains antecedents of two mediators, those are brand commitment and continuance commitment and purchase intention of particular brand (as a dependent variable). Totally, 469 valid online surveys were obtained for data analysis from smartphone users (Samsung, Huawei). The result of data analysis indicates continuance and brand commitment has significant positive effect on both of chosen smartphone brands usage intent in Indian market. The discussion of theoretical and managerial implication of the result and the future research recommendations are proposed.

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