After testing dozens of software solutions and online tools, we have ranked the following methods based on speed, video quality preservation (4K/1080p), and safety.

For a safer and legal experience, consider official services like Amazon Prime Video

The "best" downloaders are often replicated by malicious fake versions. Never download "M4UHD Downloader" from random pop-ups on the site. Stick to official sources (IDM.com, 4KDownload.com).