This report provides a detailed comparative marketing analysis of the Samsung Galaxy S10e and the Apple iPhone 11 Pro, examining their Segmentation, Targeting, and Positioning (STP) strategies, value propositions, and points of parity and difference. The analysis is based on observations from store visits, product examinations, and reviews, using marketing theory to structure the discussion. The report delves into the specific STP strategies of each product, dissecting their marketing mix elements and target audiences. It then evaluates the value propositions as communicated through their marketing communications, highlighting key differentiators. The report concludes with a personal product choice, based on customer perceived value and key features, providing a critical evaluation of the two phones and identifying the most salient features influencing the decision. The report also includes a comprehensive bibliography of cited sources.