Comparison
The Celestron Origin is the clear winner for virtually all amateur astronomers at this price point. The single most important differentiator is optical design; the Origin's f/2.20 focal ratio gathers significantly more light and delivers a wider true field of view compared to the CGX 800 HD's f/10 design, making it superior for deep sky observation and astrophotography where it scores 76 and 70 respectively versus the CGX's 40 and 20. The CGX 800 HD's narrow field and long focal length make it better suited only for lunar and planetary work, yet it inexplicably scores just 18 and 20 in those categories, suggesting optical quality issues.
The Origin's smart telescope features, modern mount, superior tracking, and lighter weight provide better overall usability for beginners learning the night sky. Purchase the Celestron Origin if you want a modern instrument capable of excellent work across all observing categories without compromise. Buy the CGX 800 HD only if you need the absolute longest possible focal length for extreme planetary magnification and have no interest in deep sky or astrophotography.
The Origin represents exceptional value and should be your choice unless you have a very specific narrow-field requirement.
Why choose Celestron CGX 800
Why choose Celestron Origin