Between the Page and Sage, the Page comes out ahead in weight, while the Sage wins on screen size and waterproof. Overall, the Page scores 65.5 and the Sage scores 69.6 on our Mars Score.
Which should you buy?
The Sage edges ahead on the Mars Score (65.5 vs 69.6), but the 4.1-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Page if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight.
Pick the Sage 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, waterproof.
Both ship with comparable resolution, storage, color screen, so those specs don't 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 tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Boox - Page wins
- ▲Weight — 45.00 g less. 195 vs 240.
Why Kobo - Sage wins
- ▲Screen size — 14.29% more. 8 " vs 7 ".
- ▲Has Waterproof.
Spec comparison
Display
| Spec | Boox - Page | Kobo - Sage |
|---|---|---|
| Screen sizeⓘ | 7 " | 8 "lead |
| Resolution | 300 ppi | 300 ppi |
| Color screen | false | false |
| Warm light | true | true |
Design
| Spec | Boox - Page | Kobo - Sage |
|---|---|---|
| Weight | 195 glead | 240 g |
| Waterproof | false | truelead |
| Page-turn buttons | true | true |
Storage & Battery
| Spec | Boox - Page | Kobo - Sage |
|---|---|---|
| Storageⓘ | 32 GB | 32 GB |
| Battery life | 4 weeks | 8 weekslead |
Frequently asked
Spec-level deep dives
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