Buy the DwarfLab Dwarf mini at $419 (419 € in Europe) if weight is the deciding factor and 0.84 kg genuinely changes where you observe; buy the DwarfLab Dwarf 3 at $549 (549 € in Europe) for everything else. The $130 gap buys four times the pixels, a wider field, more aperture, longer battery and double the storage. It is the easiest recommendation on this site.
The 20-second verdict
The DwarfLab Dwarf 3 wins this comfortably. For $130 more than the DwarfLab Dwarf mini it gives 8.3 MP instead of 2.1 MP, 35 mm of aperture instead of 30 mm, f/4.3 instead of f/5, a 2.93° × 1.65° field instead of 2.13° × 1.20°, 5.5 hours of battery instead of 4, and 128 GB instead of 64 GB. There is no column where the mini gains something the Dwarf 3 loses, except weight.
The mini’s case rests on 0.84 kg and $419, and on a 90-second maximum exposure against the Dwarf 3’s 60. Both are real, and neither outweighs a four-fold jump in definition for most buyers. The reserve that applies to both, and that you must budget for: DwarfLab ships no tripod with either model. Neither price is the price you will actually pay. Winner: the Dwarf 3.
Side by side
| Spec | DwarfLab Dwarf mini | DwarfLab Dwarf 3 |
|---|---|---|
| Indicative price | $419 (419 € in Europe) | $549 (549 € in Europe) |
| Aperture | 30 mm | 35 mm |
| Focal length | 150 mm | 150 mm (737 mm equivalent) |
| Focal ratio | f/5 | f/4.3 |
| Sensor | Sony IMX662 (Starvis 2) | Sony IMX678 (Starvis 2) |
| Resolution | 2.1 MP | 8.3 MP |
| Field of view | 2.13° × 1.20° | 2.93° × 1.65° |
| Equatorial mode | Yes — up to 90 s exposures | Yes — up to 60 s exposures, EQ tripod not included |
| Built-in filters | Astro + Hα/OIII dual-band + dark · solar included | 3 switchable filters: VIS, Astro, Hα/OIII dual-band · solar included |
| Mosaic | Yes | Yes — 2×2 panorama |
| Battery life | 4 h | 5.5 h |
| Storage | 64 GB (eMMC) | 128 GB (eMMC) |
| Weight | 0.84 kg | 1.3 kg |
| Tripod included | No | No |
| Release date | March 2026 | 2025 |
What actually separates them
Optics and light gathering
The Dwarf 3 takes it, though not dramatically. Thirty-five millimetres against thirty is about a 36 percent gain in collecting area, and f/4.3 against f/5 is a genuinely faster system that builds signal quicker per unit of exposure. Both quote 150 mm of native focal length, with DwarfLab describing the Dwarf 3 as a 737 mm equivalent in 35 mm terms. These are small apertures either way and both depend on stacking rather than raw grasp. Winner: the Dwarf 3.
Sensor, resolution and field
This is where the $130 actually goes, and it is the section that decides the page. The Dwarf 3 carries a Sony IMX678 Starvis 2 at 8.3 MP; the mini carries a Sony IMX662 Starvis 2 at 2.1 MP. Four times the pixel count, and across a wider 2.93° × 1.65° field rather than 2.13° × 1.20°. More sky and more detail within it, simultaneously. The Dwarf 3 also stitches 2×2 panoramas on top of that already wide frame. If you intend to crop, print or examine your images closely, the mini runs out of resolution immediately. Winner: the Dwarf 3, decisively.
Tracking, exposures and filters
Split, and the mini’s only genuine technical win lives here. Both offer an equatorial mode, but the mini allows exposures up to 90 seconds against 60 on the Dwarf 3, which is useful on faint targets where fewer, longer subframes reduce read noise. Note that the Dwarf 3’s equatorial mode requires an EQ tripod DwarfLab does not supply. On filters the Dwarf 3 leads again with three switchable positions — VIS, Astro and an Hα/OIII dual-band — against the mini’s Astro, dual-band and dark, with a solar filter included on both. Winner: the mini on exposure length, the Dwarf 3 on filtering.
Weight, battery and real cost
The mini is 0.84 kg, the Dwarf 3 is 1.3 kg. Both are extraordinarily light by the standards of this market, and at that scale the difference is more about pocketability than about carrying strain. Battery and storage go the other way: 5.5 hours and 128 GB against 4 hours and 64 GB, which matters because 8.3 MP subframes are far larger than 2.1 MP ones and the Dwarf 3 needs the room. Real cost is the important warning: neither includes a tripod, so add one to both figures before comparing them against a ZWO Seestar, which ships with a carbon tripod at $399. Winner: the mini on weight, the Dwarf 3 on endurance.
Which one for your use case
For a first telescope
The Dwarf 3, if the budget stretches. A beginner who buys the mini and enjoys the hobby will want more resolution within a season; a beginner who buys the Dwarf 3 will not outgrow it as fast. Winner: the Dwarf 3.
For large nebulae
The Dwarf 3. A 2.93° × 1.65° field is among the widest available at any price, and the 2×2 panorama mode extends it further. Big emission nebulae are exactly what this instrument is for. Winner: the Dwarf 3.
For small targets and galaxies
The Dwarf 3, with expectations managed. Neither 30 mm nor 35 mm resolves small galaxies meaningfully at 150 mm of focal length, but 8.3 MP at least lets you crop into what you did capture. If small objects are the goal, look at the ZWO Seestar S50 and its 250 mm focal length, keeping in mind that its availability has been irregular. Winner: the Dwarf 3.
For city skies
The Dwarf 3, narrowly. Both carry an Hα/OIII dual-band filter, which is the component that matters under skyglow, but the Dwarf 3’s third switchable position and slightly larger, faster optic give it a modest edge. See our picks for light-polluted skies for the wider field. Winner: the Dwarf 3.
For hiking and hand luggage
The mini, and this is its purpose. At 0.84 kg it is the lightest instrument in this category by a clear margin, and if you are counting grams in a backpack the difference from 1.3 kg is worth having. Remember to count the tripod you will have to bring anyway. Winner: the Dwarf mini.
Frequently asked questions
Is the Dwarf 3 worth $130 more than the Dwarf mini?
Yes, for almost everyone. Four times the definition, a wider field, more aperture, a faster focal ratio, more battery and double the storage for a 31 percent price increase is unusually good value. Choose the mini only if 0.84 kg is a hard requirement.
Do either of them come with a tripod?
No. DwarfLab includes no tripod with either model, which is the single biggest hidden cost in this comparison and the main structural advantage of ZWO’s competing ZWO Seestar S30, which ships with a carbon one at $399.
Which one takes longer exposures?
The mini, at up to 90 seconds against 60 for the Dwarf 3. The Dwarf 3’s equatorial mode also requires an EQ tripod that DwarfLab does not supply, so factor that in if long single exposures matter to you.
How do they compare with the ZWO Seestar range?
DwarfLab wins on field of view and loses on packaging. The ZWO Seestar S30 Pro at $699 matches the Dwarf 3’s 8.3 MP and includes a tripod; the Dwarf 3 frames wider for less money once you already own a tripod.
Which is the better buy under $500?
The mini fits that budget and the Dwarf 3 does not, but add a tripod and the mini is no longer obviously ahead of the alternatives. Compare against the best smart telescopes under $500 and see all comparisons.