Breville
Smart Grinder Pro
$199.95Cheaper
Released 2014
Best Coffee Grinders · head-to-head
Smart Grinder Pro vs C40 MK4 Nitro Blade
A sourced, side-by-side comparison. Smart Grinder Pro is cheaper at $199.95. Every spec and price links to its source.
Comandante
C40 MK4 Nitro Blade
$325
Released 2021
Which is better: the Smart Grinder Pro or C40 MK4 Nitro Blade?
The C40 MK4 Nitro Blade wins 2 of the 2 specs we compare head to head; the other wins 0. The Smart Grinder Pro is the cheaper at $199.95. Get the C40 MK4 Nitro Blade for the stronger spec sheet, the Smart Grinder Pro to spend less.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Smart Grinder Pro | C40 MK4 Nitro Blade |
|---|---|---|
| US price | $199.95 MSRP, Breville official US store | $325 |
| Brand | Breville | Comandante |
| Released | 2014 | 2021 |
| Type | electric | manual |
| Burr type | conical | conical |
| Burr size (mm) | 40 | 39 |
| Grind settings | 60 stepped | ~40 clicks per rotation |
| Hopper capacity (g) | 454 | 40 |
| Best for | all | all |
| Weight (lb) | 6.4 | 1.63 |
| Release | 2014 | 2021 |
Sources — Smart Grinder Pro: breville.com (verified 2026-06-19). C40 MK4 Nitro Blade: prima-coffee.com (verified 2026-06-19).
What's the difference between the Smart Grinder Pro and C40 MK4 Nitro Blade?
Where the two actually differ on the specs we track (5 of 7). Matching specs are omitted.
- Type: Smart Grinder Pro electric vs C40 MK4 Nitro Blade manual
- Burr size (mm): Smart Grinder Pro 40 vs C40 MK4 Nitro Blade 39
- Grind settings: Smart Grinder Pro 60 stepped vs C40 MK4 Nitro Blade ~40 clicks per rotation
- Hopper capacity (g): Smart Grinder Pro 454 vs C40 MK4 Nitro Blade 40
- Weight (lb): Smart Grinder Pro 6.4 vs C40 MK4 Nitro Blade 1.63
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Smart Grinder Pro
One whitelisted source survived verification: NYT Wirecutter's 'Best Coffee Grinder' guide (updated 2026-01-14). It evaluated the Breville Smart Grinder Pro hands-on as a competition-section entry and dismissed it, citing a complicated digital interface, an overwhelming abundance of settings, and too many fines in the grounds. No measured or lab metrics were captured. This is a single-source, entirely negative verdict. (1 sourced review.)
Flagged: Complicated digital interface and an abundance of settings make it difficult to use; Produces too many fines in the grounds.
C40 MK4 Nitro Blade
Only one whitelisted hands-on reviewer survived verification: Tom's Guide, which lab-measured grind uniformity (Kruve sieves), retention (scale, before/after) and grind speed, and named the Comandante C40 MK4 Editor's Choice. Every quote and measured value in this entry was confirmed verbatim against the fetched article. Verdict: best-in-class hand grinder for consistency and low retention, but slow to crank at fine settings and very expensive. (1 sourced review, 1 lab-tested.)
Praised: Consistent, uniform grind across the full range (verified via Kruve sifter test); Low grind retention, averaging 2.75%; Exceptional build quality and ergonomic body/handle.
Flagged: Very expensive (~$277-$323); Hard and slow to crank at finer settings (below ~20 clicks); No indicator showing the current click/grind setting.