Fixed-lens four-megapixel IP cameras use a set viewing angle, while varifocal cameras let installers adjust the focal length, framing, and zoom during setup. Dome, turret, and bullet describe the camera housing: domes offer a low-profile appearance, turrets provide a compact adjustable form factor, and bullets use a directional housing that often suits wall or outdoor mounting.

Yes, four-megapixel IP cameras can connect to an existing NVR or network through ONVIF and Power over Ethernet (PoE), while select models support 2.4 GHz Wi-Fi for wireless network connections. Many also integrate with supported smart home platforms, and local microSD storage provides an option for standalone operation.

Four-megapixel IP cameras may support local recording to a microSD card, with many models including thirty-two gigabytes of storage and supporting cards up to 512 GB. For larger surveillance systems, cameras can connect to a compatible multi-channel network video recorder (NVR), which provides centralized recording and management across multiple cameras.

Four-megapixel IP cameras with Sony STARVIS image sensors, True Wide Dynamic Range, and infrared night vision help capture clear video in dim or nighttime conditions. For outdoor installations, select models add IP66 or IP67 ingress protection, while color-at-night models use warm-white supplemental lighting to preserve color in darker scenes.