Boox - Go Color 7 vs Boox - Note Air 4 C

These two are nearly even on the Mars Score (76.1 vs 77.7). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.

Pick the Go Color 7 if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight. The single most decisive one: Weight — 225.00 g less. 195 vs 420.

Pick the Note Air 4 C if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are screen size. The single most decisive one: Screen size — 47.14% more. 10.3 " vs 7 ".

Both ship with comparable resolution, storage, waterproof, so those specs do not separate the two — focus on the differences below.

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.