Core Insights - Amazon's Prime Day generated record U.S. sales, with e-commerce consulting firm Momentum Commerce estimating over $750 million in online transactions during the event [2] - The event has evolved into an industry-wide phenomenon, generating $24.1 billion in online spending, a year-over-year increase of 30.3% [3][4] - Major competitors like Walmart have capitalized on Amazon's Prime Day, offering their own promotions and leveraging their physical store presence [5][6] E-commerce Landscape - Prime Day has transformed from a single company's event into a significant moment for the entire e-commerce industry, with over a hundred merchants participating [4] - Walmart's "Deals" event has been strategically timed to overlap with Prime Day, allowing the company to promote both online and in-store discounts [5][7] - Retail foot traffic surged at various store brands, indicating a shift in consumer behavior towards brick-and-mortar shopping during Prime Day [6][7] Competitive Dynamics - Amazon's inability to establish a strong presence in physical retail has been highlighted as a disadvantage compared to competitors like Walmart [5][9] - Despite Amazon's success in online sales, its efforts to connect with consumers in the physical retail space have not yielded significant results [10] - The competitive landscape is shifting, with brick-and-mortar retailers becoming more proactive in capturing consumer attention during Prime Day season [7][8]