When it comes to TVs, 4K and Ultra HD (or UHD) are referring to the same resolution. Those TVs, along with Ultra HD Blu-ray, ...

There is also a setting that maintains the original aspect ratio by displaying black ... not another brand or model. See HDTV and DTV. THIS DEFINITION IS FOR PERSONAL USE ONLY.

Screen resolutions have a pixel count such as 1600x1200, which means 1,600 horizontal pixels and 1,200 vertical pixels (see high-definition ... See resolution and aspect ratio.

The Lorex 4K Battery Doorbell does some things really well. However, there are a couple big concerns here, including battery life.