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Head-to-head

Boox - Tab Ultra C Pro vs Kobo - Libra Colour

Last updated · How Mars Score works
Tab Ultra C ProBOOXRENDER
Probe A
Boox
Tab Ultra C Pro
95.0/ 100S
Display95· 45%
Storage & Battery95· 30%
Design—· 25%
Libra ColourKOBORENDER
Probe B
Kobo
Libra Colour
65.5/ 100C
Display75· 45%
Storage & Battery50· 30%
Design—· 25%
Quick verdict

Between the Tab Ultra C Pro and Libra Colour, the Tab Ultra C Pro comes out ahead in storage and screen size, while the Libra Colour wins on weight and waterproof. Overall, the Tab Ultra C Pro scores 95 and the Libra Colour scores 65.5 on our Mars Score.

Buying advice

Which should you buy?

The Tab Ultra C Pro is the clear pick on raw spec strength, leading by 29.5 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the Tab Ultra C Pro if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are storage, screen size.

Pick the Libra Colour if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight, waterproof.

Both ship with comparable resolution, color screen, so those specs don't separate the two — focus on the differences below.

Bottom line: the Tab Ultra C Pro is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.

Why Boox - Tab Ultra C Pro wins

  • ▲Storage — 300.00% more. 128 GB vs 32 GB.
  • ▲Screen size — 47.14% more. 10.3 " vs 7 ".

Why Kobo - Libra Colour wins

  • ▲Weight — 281.00 g less. 199 vs 480.
  • ▲Has Waterproof.
Full readout

Spec comparison

Display

SpecBoox - Tab Ultra C ProKobo - Libra Colour
Screen sizeⓘ10.3 "lead7 "
Resolution300 ppi300 ppi
Color screentruetrue
Warm lighttruetrue

Design

SpecBoox - Tab Ultra C ProKobo - Libra Colour
Weight480 g199 glead
Waterprooffalsetruelead
Page-turn buttonsfalsetruelead

Storage & Battery

SpecBoox - Tab Ultra C ProKobo - Libra Colour
Storageⓘ128 GBlead32 GB
Battery life2 weeks6 weekslead
Reader questions

Frequently asked

Drill down

Spec-level deep dives

Screen size→Resolution→Color screen→Warm light→Weight→Waterproof→Page-turn buttons→Storage→Battery life→
By manufacturer

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