Which is better, a 4k Apple phone or a professional HD camera?

1. Professional HD cameras are equipped with larger sensors, which can provide better picture quality and higher dynamic range. In contrast, the sensor size of mobile phone is smaller, which limits its performance and image details in low light conditions.

2. Professional high-definition cameras use professional-grade optical lenses. These lenses have higher optical quality and larger aperture, which can provide better depth of field control and image clarity. The lens of mobile phone is relatively small, which can not provide the optical performance comparable to that of professional camera.