How is phenomenology different from empiricism?

Phenomenology and empiricism are distinct philosophical approaches, though they share a fundamental respect for the data of experience. While empiricism generally restricts its focus to sense experience—often viewing knowledge as derived from sensory input—phenomenology expands this scope.12

Key differences include:

• Scope of Experience: Phenomenology does not limit experience to the sensory realm. It admits "categorial" data, such as relations and values, provided they present themselves intuitively.1
• Knowledge of Essences: Unlike traditional empiricism, which often emphasizes the accumulation of factual knowledge, phenomenology seeks to discover the essential structures and relationships of phenomena through a systematic study of concrete examples. It recognizes synthetic a priori knowledge—truths that are independent of experience but not logically contained within the subject—based on insight into these essential relationships.341
• Methodology: Phenomenology employs a "fresh approach" that attempts to be as free as possible from conceptual presuppositions, often utilizing the epochē (suspension of belief) to focus on how phenomena appear to consciousness. It resists the empiricist tendency to reduce phenomena to simplified constructions or causal explanations, preferring to analyze them for what they are in themselves.3516

In essence, while empiricism is often concerned with the justification of knowledge through sensory observation, phenomenology focuses on the intentional structure of consciousness and the immediate self-givenness of phenomena.14