Comparison
The Celestron CGEM II 1100 is the clear winner for most amateur astronomers seeking a serious observing platform. Its 11-inch aperture delivers superior light-gathering capability, translating to brighter deep-sky views and finer planetary detail than the 9.25-inch Advanced VX. The CGEM II's 14-point overall score advantage reflects genuine performance gains across nearly all observing categories, with particularly strong planetary (77 vs 58) and deep-sky (65 vs 56) scores.
The single most important differentiator is aperture; the CGEM II's extra 1.5 inches of optical glass fundamentally changes what you can observe, revealing fainter galaxies and nebulae while providing sharper lunar and planetary resolution. The Advanced VX's only meaningful advantage is portability, though both instruments demand serious commitment to transport. The Celestron Advanced VX 9.25" EdgeHD Telescope suits observers prioritizing a lighter instrument they can actually transport regularly.
The Celestron CGEM II 1100 belongs with dedicated astronomers building a permanent or semi-permanent observing setup who value optical performance over convenience. For most buyers, invest the additional $500 in the CGEM II 1100. Its superior optics and mount stability will provide years of satisfying observations that justify the cost premium and modest portability sacrifice.
Why choose Celestron Advanced VX
Why choose Celestron CGEM II