1Zpresso J-Ultra vs Niche Zero

The 1Zpresso J-Ultra makes the smaller adjustments (2.5 µm a step against 12.4 µm), so it gives finer control between settings. Both reach the same grind sizes, just at different numbers.

Side by side

	1Zpresso J-Ultra	Niche Zero
Setting format	Click	Number
Finer direction	Lower numbers	Lower numbers
Smallest adjustment	2.5 µm	12.4 µm
Steps from espresso to French press	264	52
Espresso setting~250 µm	1.0.2	0.20
Moka pot setting~350 µm	1.4.2	0.28
AeroPress setting~450 µm	1.8.3	0.36
V60 setting~560 µm	2.2.8	0.45
Chemex setting~700 µm	2.8.5	0.56
French press setting~900 µm	3.6.6	0.73
Kalita Wave setting~600 µm	2.4.4	0.48
Cold brew setting~1100 µm	4.4.7	0.89
Siphon setting~650 µm	2.6.4	0.52

This compares how the grinders adjust, not build quality, burr type or price. Settings come from one shared particle-size scale fitted from the Honest Coffee Guide and are a starting point.

Convert between them

Questions

Which grinder has finer adjustment, the 1Zpresso J-Ultra or the Niche Zero?

The 1Zpresso J-Ultra makes the smaller adjustments (2.5 µm a step against 12.4 µm), so it gives finer control between settings. Both reach the same grind sizes, just at different numbers.

Can I use the same setting on both?

No. A V60 grind is about 2.2.8 on the 1Zpresso J-Ultra and 0.45 on the Niche Zero.