Structured equipment comparison
Compare more than machines.
Align grinder, bean and accessory records field by field. Unknown values remain visible, and database completeness is never presented as product quality.
Prepared grinder decisions
Start with a researched comparison.
Select two or three grinders2/3 selected
| Database field | FellowOpusOriginal Opus · FL1221MB-UK / FL1221MW-UKOpen full record → | DF GrindersDF54 V4DF54 V4 · Earl SKU DF-001Open full record → |
|---|---|---|
| Product lifecycle | Current model | Current model |
| Current retailer context | £195 · Healf · verified delivered Check at Healf ↗ Direct retailer link · no commission enabled · checked 23/07/2026 | £239 · Earl Coffee · verified delivered Check at Earl Coffee ↗ Direct retailer link · no commission enabled · checked 23/07/2026 |
| Best-supported offer confidence | 90/100 · high confidence · Bella Barista · exact model · checked 23/07/2026 | 100/100 · high confidence · Earl Coffee · exact model · checked 23/07/2026 |
| Model-verified offers | 2 current exact or verified | 2 current exact or verified |
| Price-history maturity | snapshot · 1 checked date | snapshot · 1 checked date |
| Best for | Buyers wanting one sub-£200 grinder for espresso and filter coffee, especially when changing beans | Buyers wanting a compact flat-burr, single-dose workflow for espresso and filter without moving to a £350-plus grinder |
| Main trade-off | This is the original Opus, not the newly announced Opus 2 with 48mm burrs and a stepless side dial. UK Opus 2 availability is still inconsistent, so compare the exact name and burr specification before buying. The original’s hidden inner ring improves espresso granularity but makes adjustments less intuitive than a single external dial. Anti-static performance needs chute cleaning, and Fellow’s low-retention and grind-quality language remains unverified by Home Coffee Index testing. The recorded retailer warranty is 12 months, and delivery cost must be confirmed at checkout. | DF54 is a white-label platform sold under names including Solo, Turin, MiiCoffee and G-Iota; confirm the V4 hardware, UK plug, seller and warranty rather than assuming every DF54 listing is equivalent. Manufacturer and retailer dimensions differ slightly, and the sub-0.1g retention figure is a seller or manufacturer claim—not a Home Coffee Index measurement. Stepless adjustment favours espresso precision but does not provide repeatable numbered clicks. Independent grind distribution, retention, static, noise, speed and durability testing is pending, so no quality ranking is published. |
| Burrs | C6-40 six-blade stainless-steel conical burrs | Custom flat stainless-steel burrs |
| Burr diameter | 40 mm | 54 mm |
| Adjustment | 41 outer settings plus hidden inner micro-adjustment and calibration ring | Stepless micrometric |
| Claimed grind range | Espresso, AeroPress, pour-over, filter, French press and cold brew | Espresso, pour-over, AeroPress and French press |
| Dosing workflow | Single dose into magnetic catch cup or portafilter insert | Single dose into supplied 58mm catch cup · bellows included |
| Load bin | 110 g | Not recorded for this product |
| Timed auto-stop | 30, 60, 90 or 120 seconds | Not recorded for this product |
| Anti-static system | Chute should be brushed about every 60 grinding cycles | Not recorded for this product |
| Manufacturer width | 12.9 cm | 11 cm |
| Manufacturer depth | 21 cm | 19 cm |
| Manufacturer height | 26.8 cm | 29.7 cm |
| Manufacturer weight | 2.3 kg | 4.7 kg |
| Recorded UK retailer warranty | 12 months | 2 years · repair warranty |
| Bean hopper | Not recorded for this product | 25 g |
| Static control | Not recorded for this product | Plasma generator in exit chute |
| Published retention claim | Not recorded for this product | Below 0.1g · not independently verified |
| UK motor | Not recorded for this product | 150W · 220–240V three-pin |
| Compatible records | 3 evidenced pairings | 10 evidenced pairings |
| Manual or product hub | Linked | Linked |
| Replacement parts | 2 linked | 2 linked |
| Evidence sources | 4 sources | 4 sources |
| Record completeness | 87% · not a quality score | 90% · not a quality score |
Structured comparison shows recorded differences and evidence gaps. It does not claim that the most complete, cheapest or most connected product makes better coffee. Commercial relationships never change comparison order or evidence fields. Read the affiliate policy.