4K Security Cameras: Complete Guide to 8MP Surveillance
Sep 17, 2026
4K Security Cameras: Complete Guide to 8MP Surveillance
4K security cameras provide approximately 8 megapixels of video resolution, giving professional surveillance systems substantially more recorded image detail than traditional 1080p cameras.
Resolution alone does not determine surveillance performance. Lens selection, viewing distance, camera placement, lighting, night vision, bitrate, recording settings and the NVR all influence the final video. This guide explains what 4K really means and how to choose the right 8MP surveillance equipment and complete system.
What Is a 4K Security Camera?
A 4K security camera typically records at 3840 × 2160 resolution, or approximately 8.3 million pixels per frame. For this reason, 4K surveillance cameras are also commonly called 8MP security cameras.
Understanding 4K Resolution in Security Cameras
In professional video surveillance, 4K typically refers to 3840 × 2160 video. Higher pixel density gives the camera more image information to record, which can be useful when reviewing important events or enlarging areas of recorded footage.
Benefits of 4K Security Cameras
How Do 4K Security Cameras Perform at Night?
A 4K resolution specification alone does not determine nighttime performance. Sensor capability, lens quality, infrared illumination, available ambient light, exposure settings and camera placement all affect low-light results.
How a 4K PoE Security Camera System Works
Professional 4K PoE security cameras combine IP video with Power over Ethernet. With compatible equipment, one Ethernet connection carries network video while also supplying power to the camera.
How Much Storage Do 4K Security Cameras Need?
Storage needs vary according to camera count, resolution, frame rate, bitrate, compression, recording mode and desired retention period. A large commercial system recording continuously will require more hard-drive capacity than a smaller system recording configured events.
Types of 4K Security Cameras
4MP vs. 4K Security Cameras
Both resolutions can provide excellent surveillance video. A 4MP camera records approximately four million pixels, while a 4K/8MP camera records approximately eight million. Higher resolution can provide additional recorded detail but also increases recording bandwidth and storage requirements.
Shop Professional 4K Security Cameras & Systems
CCTV Security Pros offers professional SureVision IP cameras and complete 4K PoE security camera systems with local NVR recording, remote viewing, intelligent detection features and no required monthly recording fees.
Shop 4K Security Camera Systems Shop SureVision CamerasFrequently Asked Questions About 4K Security Cameras
Are 4K security cameras worth it?
Is an 8MP security camera the same as 4K?
Can 4K security cameras record locally?
Can I view 4K cameras remotely?
Build the Right 4K Security Camera System
Need help choosing the right camera count, storage, lens or NVR? Our team can help configure a professional wired 4K surveillance system for your property.
