This document summarizes a study on consumer behavior in selecting smartphones in Mumbai, India. The primary objective was to study how mobile phone users make purchasing decisions. Secondary objectives included understanding brand preferences, usage patterns, and factors influencing purchase decisions. The study found that touchscreens are highly preferred, accounting for 90% of phones. Samsung has the largest market share at 35%, followed by Apple. Most consumers are brand loyal, with Nokia, Samsung, and Apple being the most popular brands. The study recommends that smartphone companies focus on product quality, technology, utility, and competitive pricing to attract consumers.