Grinders · 3 differences · 1 published for only one

J-Max vs K4

1Zpresso and KINGrinder, side by side at the same height.

1Zpresso J-Max grinder KINGrinder K4 grinder
J-Max dimensions not published K4 dimensions not published

Shown at the same height, not to scale: J-Max and K4 do not publish a height.

Images: 1Zpresso, KINGrinder, the manufacturers' product photographs. About our images

Specification

FieldJ-MaxK4
Burr geometry Conical Conical
Burr diameter 48mm 48mm
Burr material not published Titanium-coated
Grind range Espresso Turkish to French press
Type Hand Hand
Dosing Manual Manual
Single dosing Yes Yes
Hopper 40g 35g
Adjustment Stepped Stepped
Weight 0.78kg 0.63kg

A lit cell is the better value only where nobody would argue (more capacity, less retention, a lower list price, a feature present) and only when both makers publish the figure. "Not published" is never counted as a loss.