This image was taken from a Ring wifi camera with 1080p HD resolution during the day and the person is standing 7 feet from the camera. Notice how you can't read the license plate on the red car behind him. When enlarging this picture, it just gets so blurry you can't see anything.

This picture was captured from a 4K 8MP security camera we installed, the same one filming the video below which is recording the car backing to the street 50 feet away. Notice how the license plate on the black car can be read at 50 feet from the camera very easily by enlarging this photo. If this were a wireless wifi camera, you would not see the tag number at this distance. If detail imagery from your security camera is important to you, a 4K 8-12MP camera is the best solution. 

Watch the black car back up down the driveway. The street is 50 feet from the camera and you can still read the tag number. This video was shot with a 4K 8MP security camera we installed on the front of this home. 

• Make sure your playing the video in 4K. To check, start video and then pause it. Click the gear icon in the bottom right of the video player. Click Quality and choose 2160p 4K. Click Full screen to open up the player to the size of your monitor. You will need to watch it on a desktop monitor because You Tube doesn't allow viewing in 4K on mobile devices. You can also view it on a 4K TV provided your settings are set to 4K. Sometimes when people first get a 4K security camera, they sometimes think its not that clear because they are watching video with different settings other than 4K. No matter what device you're using to watch 4K video, your settings matter and need to be adjusted properly. In other words, the clarity is still 4K but the wrong settings will show you less than 4K clarity. Its a matter of settings, not the camera.