Fellow Opus 2 Conical Burr Grinder vs Niche Duo
Technical comparison · All-purpose grinders
Duo is ahead on burr diameter; beyond that the two differ in burr type and supported brew methods, which is a design choice rather than a ranking. On the category's technical index, Duo ranks #2 of 15, Opus 2 Conical Burr Grinder #13.
| Parameter |
Opus 2 Conical Burr Grinder
Fellow
F3 · Advanced
|
Duo
Niche
F4 · Semi-professional
|
|---|---|---|
| Awards | ||
| Identity | ||
| Launch year | — | 2023 |
| Use tier | F3 — Advanced | F4 — Semi-professional |
| Price | ||
| Price (€) | ~90–200 € | ~450–1000 € |
| Price updated on | 09/2026 | 09/2026 |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 13 × 20.6 × 26.7 cm | 13.5 × 23 × 35.5 cm |
| Weight (kg) | 2.3 kg | 5 kg |
| Power (W) | 300 W | — |
| Category specs | ||
| Burr type | Conical | Flat |
| Burr diameter (mm) | 48 mm | 83 mm |
| Retention (g) | — | 0 g |
| Single dose | Yes | Yes |
| Supported brew methods | Espresso, Pour over, Drip filter, French press, Cold brew | Espresso, Drip filter |
| Adjustment type | Stepless | Stepless |
| Burr material | Stainless steel | — |
| Drive | Electric | Electric |
| Hopper capacity (g) | 100 g | — |
CoffeeSpecs Awards
Opus 2 Conical Burr Grinder
Best price Advanced
The lowest price band among advanced All-purpose grinders machines (between €900 and €2,000). It is a positioning estimate, not a selling price.
How we assign awards →Duo
Most capable Semi-professional
Highest technical score among the 5 All-purpose grinders between €2,000 and €5,000 machines: 60/100.
How we assign awards →The differences that matter
- Burr diameter: Opus 2 Conical Burr Grinder 48 mm vs Duo 83 mm — Duo wins (+73%)
- Burr type: Opus 2 Conical Burr Grinder Conical · Duo Flat
- Supported brew methods: Opus 2 Conical Burr Grinder Espresso, Pour over, Drip filter, French press, Cold brew · Duo Espresso, Drip filter
Which one to choose
Questo confronto rimanda alle due schede, dove trovi i dati completi e i link ufficiali.