What is the best 4k security camera?

Video technology makes it possible to use video surveillance not only for security and safety, but for all kinds of uses to cost-effectively monitor operations for business optimization and process improvement.

ANNKE 8CH Security Surveillance System H.264+ 1080P Lite Wired DVR and (8 )Ч1080P HD Weatherproof CCTV Camera System, 100ft Night Vision,Easy 
4K IP camera systems offer the highest level of detail and clarity available.
Top Security Camera Features to Consider Before Buying. 1. High-definition (HD) video quality. The higher the camera resolution, the sharper the 

Video Surveillance software enables new level of home security & surveillance.

Artificial intelligence is giving surveillance cameras digital brains to match their eyes, letting them analyze live video with no humans necessary. This could be good news for public safety, helping police and first responders more easily spot crimes and accidents and have a range of scientific and industrial applications. But it also raises serious questions about the future of privacy and poses novel risks to social justice.
Video Tutorial:
1) How to use video surveillance software?
2) How to add new video surveillance devices?
3) How to view video surveillance archive?
4) How to create Live broadcast from IP camera?
5) How to upload events to youtube automatically?
Video Surveillance Software
Video tutorial