Which to buy · Every setting
1Zpresso J-Ultra vs 1Zpresso X-Ultra
Both called Ultra, at opposite ends of the range.
Which to buy
Choose the
J-Ultra if you…
- pull mostly espresso — 1Zpresso optimises the J-Ultra burrs for it
- want 100 clicks a turn, 8 microns each
- grind larger doses — 35–40 g
Choose the
X-Ultra if you…
- brew pour over as well as espresso — 1Zpresso rates it for both
- want 12.5-micron clicks
- want a lighter grinder to carry — 590 g
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Sources: 1Zpresso — J-Ultra · 1Zpresso — J-Ultra product page · 1Zpresso — J-Ultra manual · 1Zpresso — X-Ultra · 1Zpresso — X series
| J-Ultra | X-Ultra | |
|---|---|---|
| Brand | 1Zpresso | 1Zpresso |
| Scale | Clicks | Clicks |
| Dial range | 0 clicks – 500 clicks | 0 clicks – 240 clicks |
| Burrs | Conical | Conical |
| Espresso → filter | 199.8 clicks | 90.9 clicks |
| Filter → coarse | 205.2 clicks | 103.3 clicks |
The same number means different things
Both grinders use a clicks, which makes it tempting to copy a number straight across. Setting 120 clicks sits at grind index 2.9 on the J-Ultra but 31.7 on the X-Ultra — far enough apart to change the cup.
Converting a setting
If a recipe quotes a setting for one of these grinders, read across for the equivalent on the other. Rows are spaced evenly by grind size, not by dial number — on a conical burr those are not the same thing.
| J-Ultra | X-Ultra |
|---|---|
| 95 clicks | 46 clicks |
| 169 clicks | 65 clicks |
| 227 clicks | 84 clicks |
| 257 clicks | 104 clicks |
| 276 clicks | 124 clicks |
| 301 clicks | 139 clicks |
| 334 clicks | 150 clicks |
| 369 clicks | 157 clicks |
| 403 clicks | 167 clicks |
| 431 clicks | 181 clicks |
| 455 clicks | 200 clicks |
| 477 clicks | 220 clicks |
| 500 clicks | 240 clicks |
| X-Ultra | J-Ultra |
|---|---|
| 46 clicks | 95 clicks |
| 65 clicks | 169 clicks |
| 84 clicks | 227 clicks |
| 104 clicks | 257 clicks |
| 124 clicks | 276 clicks |
| 139 clicks | 301 clicks |
| 150 clicks | 334 clicks |
| 157 clicks | 369 clicks |
| 167 clicks | 403 clicks |
| 181 clicks | 431 clicks |
| 200 clicks | 455 clicks |
| 220 clicks | 477 clicks |
| 240 clicks | 500 clicks |
Side by side, by brew method
Where each grinder lands for the same brew, worked out from its own dial curve.
| Method | J-Ultra | X-Ultra |
|---|---|---|
| Espresso | 139 clicks | 57 clicks |
| Moka pot | 218 clicks | 80 clicks |
| AeroPress (short steep) | 257 clicks | 104 clicks |
| Pour over — V60 / cone | 288 clicks | 133 clicks |
| Siphon | 302 clicks | 140 clicks |
| Pour over — flat bottom | 314 clicks | 144 clicks |
| Steep and release — Clever / Switch | 326 clicks | 148 clicks |
| Drip / batch brew | 270 clicks | 110 clicks |
| Cupping | 342 clicks | 152 clicks |
| Chemex | 368 clicks | 157 clicks |
| French press | 421 clicks | 175 clicks |
| Cold brew | 467 clicks | 211 clicks |
The shape of each dial
Where the connectors bunch, that grinder’s dial is compressed and single steps count for more. Comparing the two shapes tells you which gives finer control, and where.
1Zpresso J-Ultra
1Zpresso X-Ultra
Dialing in the J-Ultra
The J-Ultra widens the useful band relative to the J-Max, trading a little espresso resolution for genuinely usable filter and French press. If you want one hand grinder for everything, this is the one in the range that tries hardest.
Dialing in the X-Ultra
The X series is 1Zpresso's more affordable line, and the X-Ultra is its all-rounder — positioned between the espresso-focused J-Ultra and the filter-leaning K-Ultra, and happy at either end without being optimised for one. The external dial gives 60 clicks a rotation across four rotations, so 240 settings at 12.5 microns each: the same step size as the JX-Pro and half that of the Q2, which is why espresso is genuinely dialable here. Seventy-three clicks separate espresso from filter, so small moves really are small. The one practical annoyance is that nothing tells you which rotation you are on — lose count and you return to zero and start again, though the dial lifts off to recalibrate.