Epson - EcoTank ET-2850 vs Epson - WorkForce Pro WF-7840
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Epson - EcoTank ET-2850 | Epson - WorkForce Pro WF-7840 |
|---|---|---|
| Pages/min (color) | 5 | 12 |
| Pages/min (mono) | 10.5 | 25 |
| ADF | false | true |
Between the EcoTank ET-2850 and WorkForce Pro WF-7840, the EcoTank ET-2850 comes out ahead in several specs, while the WorkForce Pro WF-7840 wins on pages/min (color) / pages/min (mono). Overall, the EcoTank ET-2850 scores 63.4 and the WorkForce Pro WF-7840 scores 73.1 on our Mars Score.
Which should you buy?
The WorkForce Pro WF-7840 is the clear pick on raw spec strength, leading by 9.7 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.
The EcoTank ET-2850 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 WorkForce Pro WF-7840 if you care most about pages/min (color) / pages/min (mono). Its strongest claims are pages/min (color), pages/min (mono), adf. The single most decisive one: Pages/min (color) — 140.00% more. 12 vs 5.
Both ship with comparable type, color, auto duplex, so those specs do not separate the two — focus on the differences below.
Bottom line: the WorkForce Pro WF-7840 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: Epson - EcoTank ET-2850 or Epson - WorkForce Pro WF-7840?
Epson - WorkForce Pro WF-7840 leads the current Mars Score by 9.7 points.The more useful decision is the trade-off behind that result: compare pages/min (mono), pages/min (color) against the way you will actually use the product.
Choose Epson - EcoTank ET-2850 if…
Epson - EcoTank ET-2850 does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose Epson - WorkForce Pro WF-7840 if…
Epson - WorkForce Pro WF-7840 has the measurable edge on ppm color, ppm mono, has adf.
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 Epson - EcoTank ET-2850 wins
- No decisive advantages.
Why Epson - WorkForce Pro WF-7840 wins
- ▲Pages/min (color) — 140.00% more. 12 vs 5.
- ▲Pages/min (mono) — 138.10% more. 25 vs 10.5.
- ▲Has ADF.
Spec comparison
Spec
| Spec | Epson - EcoTank ET-2850 | Epson - WorkForce Pro WF-7840 |
|---|---|---|
| Type | Inkjet AIO | Inkjet AIO |
| Ink system | Refillable tanklead | Cartridge |
| Color | true | true |
| Pages/min (mono) | 10.5 | 25lead |
| Pages/min (color) | 5 | 12lead |
| Resolution | 5760x1440 dpi | 4800x2400 dpi |
| Max paper size | Letter | Tabloidlead |
Features
| Spec | Epson - EcoTank ET-2850 | Epson - WorkForce Pro WF-7840 |
|---|---|---|
| Auto duplex | true | true |
| ADF | false | truelead |
| Wi-Fiⓘ | true | true |
| AirPrint | true | true |