Question 1

What’s the difference between HD, Full HD, and 4K?

Accepted Answer

HD (High-Defination) refers to 1280 x 720 pixels (720p) and offers clear visuals suitable for streaming on smaller devices, while Full HD (FHD or 1080p) doubles that resolution to 1920 x 1080 pixels, delivering sharper, more detailed imagery for laptops, TVs, and Blu-ray content. In contrast, 4K (Ultra  HD) boosts resolution further to 3840 x 2160 pixels, four times the pixel count of FHD, providing substantially greater clarity, especially noticeable on large screens.

Question 2

What’s the best video resolution?

Accepted Answer

The best resolution depends on your setups. 720p works well for mobile and low-bandwidth situations, while 1080p hits a reliable balance between clarity and data use, ideal for most TVs and computers. If your hardware, internet, and content support it, 4k delivers noticeably crisper detail on large screens and advanced editing workflow. 8k offers even more detail, but it’s often unnecessary without dedicated equipment and native content.

Question 3

What does upscaling mean in video resolution?

Accepted Answer

Upscaling stretches a lower-resolution video to fit a higher-resolution display by using algorithms to generate extra pixels that approximate the original image. Traditional methods interpolate colors between existing pixels, while AI-powered upscalers use machine learning to enhance sharpness and texture, although they cannot recreate actual detail that wasn’t present in the original source.