DF64 Gen 2 Single Dose Grinder vs Fellow Opus 2 Conical Burr Grinder
DF64 Gen 2 Single Dose Grinder (#2, best premium) vs Fellow Opus 2 Conical Burr Grinder (#4, best value): in our Coffee Grinders scoring the DF64 Gen 2 Single Dose Grinder totals 9.1/10 and the Fellow Opus 2 Conical Burr Grinder 8.2/10.
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TopsFive comparison scores
Side by side
| DF64 Gen 2 Single Dose Grinder | Fellow Opus 2 Conical Burr Grinder | |
|---|---|---|
| Burrs | 64mm flat | 48mm conical steel |
| Retention | <0.3g | — |
| Adjustment | Stepless | — |
| Motor | 250W | — |
| Upgrades | SSP burrs compatible | — |
| Settings | — | 48 |
| Hopper | — | 100g |
| Features | — | Ionizer, dual catch cups |
| Design | — | Opus successor |
| Price | Check price → | $200 → |
How they differ in real use
Built from our coffee grinders scoring, each product's published specifications, and verified owner feedback — not hands-on testing.
Both the DF64 Gen 2 Single Dose Grinder and the Fellow Opus 2 Conical Burr Grinder made our Top 5 Coffee Grinders, at #2 (best premium) and #4 (best value). 64mm flat burrs with near-zero retention at half the price of established competitors. The home espresso community's darling. Fellow discontinued the original Opus on Amazon in favor of the redesigned Opus 2: 48 settings (up from 41), a 100g load bin with dedicated espresso/filter catch cups, and an integrated ionizer that further cuts static and retention. It's new enough that long-term reliability data is still thin, and some colorways ship on backorder from Fellow directly, so we link the retailer carrying current stock.
We score coffee grinders on Grind Consistency (40%), Grind Range (25%), Retention (15%), Build Quality (10%) and Value (10%). On that basis the DF64 Gen 2 Single Dose Grinder totals 9.1 out of 10 and the Fellow Opus 2 Conical Burr Grinder 8.2. The widest gap is Grind Consistency, where the DF64 Gen 2 Single Dose Grinder scores 9 against 8 for the Fellow Opus 2 Conical Burr Grinder: particle uniformity. Retention also separates them: 10 for the DF64 Gen 2 Single Dose Grinder versus 8.3 for the Fellow Opus 2 Conical Burr Grinder.
On paper, the specifications that actually differ: Burrs: 64mm flat on the DF64 Gen 2 Single Dose Grinder versus 48mm conical steel on the Fellow Opus 2 Conical Burr Grinder.
The Fellow Opus 2 Conical Burr Grinder lists at $200; the DF64 Gen 2 Single Dose Grinder's current price is on the merchant page. Owners praise the DF64 Gen 2 Single Dose Grinder for 64mm flat burrs and near-zero retention; the most common complaint is QC can vary. Owners praise the Fellow Opus 2 Conical Burr Grinder for 48 grind settings and integrated ionizer cuts static cling; the most common complaint is new model with limited long-term reliability data yet.
DF64 Gen 2 Single Dose Grinder
- 64mm flat burrs
- Near-zero retention
- Great value
- SSP burr upgradeable
- QC can vary
- Needs alignment check
- Clumpy stock
Fellow Opus 2 Conical Burr Grinder
- 48 grind settings
- Integrated ionizer cuts static cling
- 100g load bin with dedicated espresso + filter catch cups
- Covers espresso through cold brew
- New model with limited long-term reliability data yet
- Premium pricing for a non single-dose design
- Some colorways ship on backorder
Which should you buy?
The DF64 Gen 2 Single Dose Grinder is the better fit for single-dose home espresso and value-seekers; it is the higher-scoring pick here, chiefly for Grind Consistency and Retention. The Fellow Opus 2 Conical Burr Grinder is the better fit for design-conscious coffee lovers and multi-method brewers. The DF64 Gen 2 Single Dose Grinder is a poor fit for set-and-forget users; the Fellow Opus 2 Conical Burr Grinder is a poor fit for serious espresso focus.
Choose the DF64 Gen 2 Single Dose Grinder if
- Single-dose home espresso
- Value-seekers
- Those comfortable modding
Skip it if
- Set-and-forget users
- Those wanting premium support
Choose the Fellow Opus 2 Conical Burr Grinder if
- Design-conscious coffee lovers
- Multi-method brewers
- Fellow ecosystem fans
Skip it if
- Serious espresso focus
- Budget shoppers
Common questions
Is the DF64 Gen 2 Single Dose Grinder better than the Fellow Opus 2 Conical Burr Grinder?
In our Coffee Grinders ranking the DF64 Gen 2 Single Dose Grinder scores higher overall, 9.1 to 8.2, with the biggest advantage in Grind Consistency. The Fellow Opus 2 Conical Burr Grinder does not out-score it on any criterion we weigh.
What is the main difference between the DF64 Gen 2 Single Dose Grinder and the Fellow Opus 2 Conical Burr Grinder?
The headline spec difference is Burrs: 64mm flat on the DF64 Gen 2 Single Dose Grinder versus 48mm conical steel on the Fellow Opus 2 Conical Burr Grinder. In use, the gap that matters most is Grind Consistency (9 vs 8 in our scoring): particle uniformity.