EM04 Wireless Trackball Mouse vs EM05 NL Trackball Ergonomic Vertical Mouse
EM05 NL Trackball Ergonomic Vertical Mouse — Pick the EM05 NL Trackball Ergonomic Vertical Mouse — it leads these groups: Design 1
Tap a group name to see the proof · The scoring method is public
The short answer
EM05 NL Trackball Ergonomic Vertical Mouse wins this comparison with a score of 54.2/100, ahead of EM04 Wireless Trackball Mouse (54.1).
The main differences: Buttons (6 vs 7).
Scores are computed from 5 public spec attributes; missing values stay marked unknown in tables and are imputed at the category median, never passed off as measured.
At a glance
0–100 per group, normalized within the category · Tap a group for details
| EM04 Wireless Trackball Mouse | EM05 NL Trackball Ergonomic Vertical Mouse | |
|---|---|---|
| Performance | 77 | 77 |
| Design | 33 | 41 |
| Connect | 68 | 68 |
| Battery | 4 | 0 |
How to choose
Pick the EM05 NL Trackball Ergonomic Vertical Mouse if you care about…
- Buttons 7 +1 vs 6
Best price now
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Where they differ
1 · Only rows that actually differ, with a verdict per row
| EM04 Wireless Trackball Mouse | EM05 NL Trackball Ergonomic Vertical Mouse | Where they differ | |
|---|---|---|---|
| Buttons | 6 | 7 | EM05 NL Trackball Ergonomic Vertical Mouse |
The record
Grouped and collapsible · Tap a group to fold
Performance2▾
| EM04 Wireless Trackball Mouse | EM05 NL Trackball Ergonomic Vertical Mouse | |
|---|---|---|
| Sensor | Trackball | Trackball |
| Weight | 2.4 g | 2.4 g |
Design1▾
| EM04 Wireless Trackball Mouse | EM05 NL Trackball Ergonomic Vertical Mouse | |
|---|---|---|
| Buttons | 6 | 7 |
Connect1▾
| EM04 Wireless Trackball Mouse | EM05 NL Trackball Ergonomic Vertical Mouse | |
|---|---|---|
| Wired | — | — |
Battery1▾
| EM04 Wireless Trackball Mouse | EM05 NL Trackball Ergonomic Vertical Mouse | |
|---|---|---|
| Battery life | — | 2 h |
Data sources: Amazon
FAQ
Which is better, EM04 Wireless Trackball Mouse or EM05 NL Trackball Ergonomic Vertical Mouse?
EM05 NL Trackball Ergonomic Vertical Mouse edges ahead 54 to 54 and leads in Design.
What are the main differences?
The main differences: Buttons (6 vs 7).
How are the scores calculated?
We normalize 5 public spec attributes within the category and weight them by group into a 0–100 score; missing values are inherited from spec-identical twins or imputed at the category median, so a sparse spec sheet never earns an advantage. The methodology is public.