Choosing between TikTok Shop and Amazon FBA is one of the more consequential decisions you can make as an e-commerce seller right now. Both platforms generate real revenue, but they do it in fundamentally different ways, and what works well on one can fall flat on the other. TikTok Shop runs on social commerce, where discovery and impulse drive purchases. Your product type, audience, and business goals determine which model fits you better. This guide walks through both platforms so you can make a clear, informed decision.