1Zpresso JX Pro S vs Breville Smart Grinder Pro
Hand grinder versus electric, near the same price. The 1Zpresso JX Pro S at $139 has large 48mm conical burrs and a precise numbered dial, delivering better espresso grind quality than the Breville — but you crank by hand. The Breville Smart Grinder Pro at $200 is a programmable, hopper-fed electric that grinds into the portafilter for convenience, at the cost of high retention and more fines. Choose the JX Pro for grind quality; choose the Breville for hands-free convenience.
Spec face-off
Bars scaled to the higher value. Coloured = wins that spec.
Full specifications
Strengths & weaknesses
Full comparison
The JX Pro S punches above its price on grind quality: 48mm conical steel burrs, an external 90-click numbered ring for repeatable dialing, and tight bearing tolerances that beat many electrics on concentricity. It's espresso-to-French-press capable and cup quality is excellent — but every dose is 90-120 seconds of cranking, and the 35g chamber means reloading for big batches. The Smart Grinder Pro is a 60-setting hopper-fed electric with 0.2-second timed dosing that grinds straight into the portafilter, programmable and hands-free.
Grind quality favors the 1Zpresso. The Breville's biggest real-world espresso weaknesses are high retention (roughly 18g in, 16g out, carrying stale grounds forward) and more fines and dust than peers, which risks muddy over-extraction. The JX Pro produces cleaner, more uniform espresso grounds with no retention concern.
Convenience favors the Breville. It grinds at a button press, doses by time, includes portafilter cradles and basket adapters, and offers finer filter-side control than a Baratza Encore ESP — ideal for a household grinding several cups daily, especially with pressurized or dual-wall baskets.
Buy the JX Pro S ($139) for the best espresso grind quality and precise numbered dialing on a budget, if manual grinding is fine. Buy the Smart Grinder Pro ($200) for programmable, hands-free grinding into the portafilter, accepting more fines and retention.