Core dimensions include grip comfort (ergonomic design, weight balance, anti-slip performance), button feedback (travel length, trigger sensitivity, anti-misclick performance), connection stability (wireless latency testing, multi-device compatibility), battery life (continuous gaming duration on full charge, charging speed), and special function tests (e.g., vibration feedback, back button customization, motion control accuracy). Recommends controllers for different player types (competitive/casual/multiplayer gaming).