When sourcing from a factory, prioritize 4K resolution at 60fps for smooth motion capture. Ensure the sensors used are from reputable brands like Sony or OmniVision to guarantee low-light performance. Key hardware features should include Electronic Image Stabilization (EIS 2.0 or higher), a wide-angle lens of at least 170 degrees, and a waterproof rating of IP68 (native or with housing). For professional use, verify if the factory supports H.265 encoding to optimize storage without losing video quality.