In today’s mobile-first eCommerce landscape, the first 550 pixels can make or break a sale. This expert guide unpacks how to optimize the mobile “above-the-fold” experience—focusing on layout, trust cues, CTA placement, and real-world CRO tactics proven to increase add-to-cart rates. Designed for digital leaders and conversion strategists, this article reveals the principles, patterns, and pitfalls that separate top-performing product pages from the rest.