Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Kobo - Clara BW | PocketBook - Era Color |
|---|---|---|
| Weight | 172 g | 200 g |
| Screen size | 6 " | 7 " |
| Color screen | false | true |
Between the Clara BW and Era Color, the Clara BW comes out ahead in weight, while the Era Color wins on screen size / color screen. Overall, the Clara BW scores 67.2 and the Era Color scores 69.2 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (67.2 vs 69.2). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Clara BW 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 — 28.00 g less. 172 vs 200.
Pick the Era Color 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, color screen. The single most decisive one: Screen size — 16.67% more. 7 " vs 6 ".
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.
Which should you buy: Kobo - Clara BW or PocketBook - Era Color?
PocketBook - Era Color leads the current Mars Score by 2.0 points.The more useful decision is the trade-off behind that result: compare screen size, weight against the way you will actually use the product.
Choose Kobo - Clara BW if…
Kobo - Clara BW has the measurable edge on weight g.
Choose PocketBook - Era Color if…
PocketBook - Era Color has the measurable edge on screen size in, has color screen.
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 Kobo - Clara BW wins
- ▲Weight — 28.00 g less. 172 vs 200.
Why PocketBook - Era Color wins
- ▲Screen size — 16.67% more. 7 " vs 6 ".
- ▲Has Color screen.
Spec comparison
Display
| Spec | Kobo - Clara BW | PocketBook - Era Color |
|---|---|---|
| Screen size | 6 " | 7 "lead |
| Resolution | 300 ppi | 300 ppi |
| Color screen | false | truelead |
| Warm light | true | true |
Design
| Spec | Kobo - Clara BW | PocketBook - Era Color |
|---|---|---|
| Weight | 172 glead | 200 g |
| Waterproof | true | true |
| Page-turn buttons | false | truelead |
Storage & Battery
| Spec | Kobo - Clara BW | PocketBook - Era Color |
|---|---|---|
| Storageⓘ | 16 GB | 16 GB |
| Battery life | 6 weekslead | 5 weeks |