Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | BenQ - EC1-CW | BenQ - EC3-CW |
|---|---|---|
| Weight | 77 g | 75 g |
Between the EC1-CW and EC3-CW, the EC1-CW comes out ahead in several specs, while the EC3-CW wins on weight. Overall, the EC1-CW scores 50.7 and the EC3-CW scores 51.1 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (50.7 vs 51.1). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
The EC1-CW does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
Pick the EC3-CW if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight. The single most decisive one: Weight — 2.00 g less. 75 vs 77.
Both ship with comparable max dpi, polling rate, wireless, 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: BenQ - EC1-CW or BenQ - EC3-CW?
BenQ - EC3-CW leads the current Mars Score by 0.4 points.The more useful decision is the trade-off behind that result: compare weight against the way you will actually use the product.
Choose BenQ - EC1-CW if…
BenQ - EC1-CW does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose BenQ - EC3-CW if…
BenQ - EC3-CW has the measurable edge on weight g.
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 BenQ - EC1-CW wins
- No decisive advantages.
Why BenQ - EC3-CW wins
- ▲Weight — 2.00 g less. 75 vs 77.
Spec comparison
Sensor
| Spec | BenQ - EC1-CW | BenQ - EC3-CW |
|---|---|---|
| Max DPI | 3200 | 3200 |
| Max IPS | 400 | 650lead |
| Polling rate | 1000 Hz | 1000 Hz |
Design
| Spec | BenQ - EC1-CW | BenQ - EC3-CW |
|---|---|---|
| Weight | 77 g | 75 glead |
| Buttons | 5 | 5 |
| Shape | Right-handed | Right-handed |
Connectivity
| Spec | BenQ - EC1-CW | BenQ - EC3-CW |
|---|---|---|
| Wireless | true | true |
| Battery | 70 h | 70 h |