Between the WorkForce Pro WF-7840 and BM5100ADW, the WorkForce Pro WF-7840 comes out ahead in color and pages/min (color), while the BM5100ADW wins on pages/min (mono). Overall, the WorkForce Pro WF-7840 scores 60.4 and the BM5100ADW scores 75.8 on our Mars Score.
Which should you buy?
The BM5100ADW is the clear pick on raw spec strength, leading by 15.4 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 WorkForce Pro WF-7840 if you care most about color and pages/min (color). The biggest gaps in its favor are color, pages/min (color).
Pick the BM5100ADW if you care most about pages/min (mono). Its strongest claims are pages/min (mono).
Both ship with comparable auto duplex, adf, airprint, so those specs don't separate the two — focus on the differences below.
Bottom line: the BM5100ADW is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Epson - WorkForce Pro WF-7840 wins
- ▲Has Color.
- ▲Pages/min (color): 12 vs 0.
Why Pantum - BM5100ADW wins
- ▲Pages/min (mono) — 60.00% more. 40 vs 25.
Spec comparison
Spec
| Spec | Epson - WorkForce Pro WF-7840 | Pantum - BM5100ADW |
|---|---|---|
| Type | Inkjet AIO | Laser AIO |
| Color | truelead | false |
| Pages/min (mono) | 25 | 40lead |
| Pages/min (color) | 12lead | 0 |
| Resolution | 4800x2400 dpi | 1200x1200 dpi |
| Max paper size | Tabloidlead | Letter |
Features
| Spec | Epson - WorkForce Pro WF-7840 | Pantum - BM5100ADW |
|---|---|---|
| Auto duplex | true | true |
| ADF | true | true |
| Wi-Fi | true | true |
| AirPrint | true | true |
Frequently asked
Spec-level deep dives
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