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HD (High Definition)

technology

720p or 1080p video resolution offering significantly better picture than SD.

Explanation

HD (High Definition) is video at 720p (1280×720) or 1080p (1920×1080) resolution. 1080p is also called Full HD or FHD. Most streaming services default to HD when the connection is fast enough. HD needs about 5–8 Mbps for smooth playback.

Related Terms

4K Ultra HD3840×2160 pixel resolution — four...SD (Standard Definition)480p video resolution — older...ResolutionThe number of pixels in...Adaptive Bitrate (ABR)Technology that automatically adjusts video...

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Last updated: March 2026