Grinders · 4 differences · 2 published for only one

J-Ultra vs K0

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

1Zpresso J-Ultra grinder KINGrinder K0 grinder
J-Ultra dimensions not published K0 dimensions not published

Shown at the same height, not to scale: J-Ultra and K0 do not publish a height.

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

Specification

FieldJ-UltraK0
Burr geometry Conical Conical
Burr diameter 48mm 38mm
Burr material not published Steel
Grind range Espresso Filter
Type Hand Hand
Dosing Manual Manual
Single dosing Yes Yes
Hopper 40g 25g
Adjustment Stepped Stepped
Weight 0.7kg 0.58kg
List price $199 not published

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.