Buyers should focus on the differentiation capability (3-part vs. 5-part), as 5-part analyzers provide more detailed white blood cell breakdowns essential for complex diagnoses. Key metrics include throughput (samples per hour), typically ranging from 40 to 110 t/h, and sample volume requirements, where micro-sampling (e.g., ≤20μL) is critical for pediatric use. Ensure the unit utilizes SF Cube flow cytometry technology for accurate abnormal cell detection and has a high-resolution touch screen for operational efficiency.