Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Boox - Tab Ultra C Pro | reMarkable - Paper Pro |
|---|---|---|
| Storage | 128 GB | 64 GB |
| Weight | 480 g | 525 g |
| Resolution | 300 ppi | 229 ppi |
| Screen size | 10.3 " | 11.8 " |
Between the Tab Ultra C Pro and Paper Pro, the Tab Ultra C Pro comes out ahead in storage / weight, while the Paper Pro wins on screen size. Overall, the Tab Ultra C Pro scores 84.3 and the Paper Pro scores 67.5 on our Mars Score.
Which should you buy?
The Tab Ultra C Pro is the clear pick on raw spec strength, leading by 16.8 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 you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are storage, weight, resolution. The single most decisive one: Storage — 100.00% more. 128 GB vs 64 GB.
Pick the Paper Pro 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 — 14.56% more. 11.8 " vs 10.3 ".
Both ship with comparable waterproof, color screen, so those specs do not 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.
Which should you buy: Boox - Tab Ultra C Pro or reMarkable - Paper Pro?
Boox - Tab Ultra C Pro leads the current Mars Score by 16.8 points.The more useful decision is the trade-off behind that result: compare screen size, resolution, storage, weight against the way you will actually use the product.
Choose Boox - Tab Ultra C Pro if…
Boox - Tab Ultra C Pro has the measurable edge on storage gb, weight g, resolution ppi.
Choose reMarkable - Paper Pro if…
reMarkable - Paper Pro has the measurable edge on screen size in.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Boox - Tab Ultra C Pro wins
- ▲Storage — 100.00% more. 128 GB vs 64 GB.
- ▲Weight — 45.00 g less. 480 vs 525.
- ▲Resolution — 31.00% more. 300 ppi vs 229 ppi.
Why reMarkable - Paper Pro wins
- ▲Screen size — 14.56% more. 11.8 " vs 10.3 ".
Spec comparison
Display
| Spec | Boox - Tab Ultra C Pro | reMarkable - Paper Pro |
|---|---|---|
| Screen size | 10.3 " | 11.8 "lead |
| Resolution | 300 ppilead | 229 ppi |
| Color screen | true | true |
| Warm light | true | true |
Design
| Spec | Boox - Tab Ultra C Pro | reMarkable - Paper Pro |
|---|---|---|
| Weight | 480 glead | 525 g |
| Waterproof | false | false |
| Page-turn buttons | false | false |
Storage & Battery
| Spec | Boox - Tab Ultra C Pro | reMarkable - Paper Pro |
|---|---|---|
| Storageⓘ | 128 GBlead | 64 GB |
| Battery life | 2 weeks | 2 weeks |