Buy the Unistellar eVscope 2 at $4,999 (4,699 € in Europe) if you want the bigger mirror and the longer night; buy the Unistellar Odyssey Pro at $4,599 (4,199 € in Europe) if 3 kg less to carry matters more to you than 29 mm of aperture. Both carry the same Nikon micro-OLED eyepiece, and that eyepiece, not the optics, is what you are really paying for. The $400 between them buys aperture and endurance, nothing else.
The 20-second verdict
Buy the eVscope 2 if you want the most capable optics Unistellar sells with an eyepiece attached: 114 mm at f/4, 450 mm of focal length, 7.7 MP and 9 h of battery life, enough for a full winter night without a power bank. Accept in exchange 7.0 kg to move around, a 2021 design, and no autofocus: a slow manual routine where touching the focus ring nudges the tube.
Buy the Odyssey Pro if portability outranks aperture. At 4.0 kg it is the one you actually carry to a dark site, it is the newer design of the two, and reviews confirm usable deep-sky imaging from a city centre. Accept 85 mm instead of 114 mm, 4.1 MP instead of 7.7 MP, and 5 h of battery life against 9 h.
Side by side
| Spec | Unistellar eVscope 2 | Unistellar Odyssey Pro |
|---|---|---|
| Indicative price | $4,999 (4,699 € in Europe) | $4,599 (4,199 € in Europe) |
| Aperture | 114 mm | 85 mm |
| Focal length | 450 mm | 320 mm |
| Focal ratio | f/4 | f/3.9 |
| Sensor | Sony IMX347 | Sony IMX415, not confirmed by the manufacturer |
| Resolution | 7.7 MP | 4.1 MP delivered |
| Field of view | 0.57° × 0.76° | 0.56° × 0.75° |
| Mount | Motorised alt-azimuth | Motorised alt-azimuth |
| Equatorial mode | No | No |
| Built-in filters | None, Deep Dark software processing | None, Deep Dark software processing |
| Mosaic | No | No |
| Battery life | 9 h | 5 h |
| Storage | 64 GB (eMMC) | 64 GB (eMMC) |
| Weight | 7.0 kg | 4.0 kg |
| Tripod included | Yes | Yes |
What actually separates them
Optics and light gathering
114 mm against 85 mm is roughly 80 per cent more collecting area, and 450 mm of focal length against 320 mm puts a longer reach on small targets. The focal ratios are effectively tied, f/4 against f/3.9, so the speed advantage the Odyssey Pro might claim on paper is negligible; the aperture difference is not. This is the one place where the eVscope 2 earns its extra money outright. Winner on optics and light gathering: the eVscope 2.
Sensor, resolution and field
The eVscope 2 delivers 7.7 MP from a Sony IMX347; the Odyssey Pro delivers 4.1 MP, from a sensor widely reported as a Sony IMX415 but never confirmed by Unistellar. One source quotes 8 MP native on the Odyssey Pro before cropping; 4.1 MP is what you actually get back. The fields of view are practically identical, 0.57° × 0.76° against 0.56° × 0.75°, so both frame the same narrow patch of sky, and neither has a mosaic mode to widen it. The difference is detail and cropping headroom. Winner on sensor, resolution and field: the eVscope 2.
Battery, weight and portability
9 h against 5 h, and 7.0 kg against 4.0 kg. Those two numbers pull in opposite directions, and this is where the choice gets made. The eVscope 2 runs all night unattended; the Odyssey Pro needs a top-up before dawn in winter. But 7.0 kg is a car-boot instrument, while 4.0 kg genuinely travels. Both ship with a tripod and 64 GB. From a fixed garden the battery wins; if you drive to dark skies, the weight does. Winner on portability: the Odyssey Pro, and on endurance the eVscope 2.
Eyepiece, software and real cost
The Nikon micro-OLED eyepiece is the shared justification for both price tags, and it is worth being blunt: it shows the processed sensor image in a miniature screen, not a direct optical view, and magnifies nothing optically. Neither model has built-in filters; both rely on Unistellar Deep Dark processing. The app is free on iOS and Android with no subscription on either, though the Odyssey Pro app is reported as temperamental and prone to needing cold restarts. Real cost is where the awkward comparison sits: the Celestron Origin Mark II asks $4,299 in the United States for 152 mm at f/2.2, more aperture and a far faster optic than either Unistellar, though it costs 5,299 € in Europe and weighs 18.87 kg. Winner on real cost in dollars: neither, the Origin Mark II undercuts both.
Which one for your use case
For beginners
Neither is a beginner purchase at this price, but the Odyssey Pro asks less of you physically and is faster to set down and start. The eVscope 2 has no autofocus, and its manual routine is exactly the fiddly step a first-time owner does not want on a cold night. Winner for beginners: the Odyssey Pro.
For deep-sky detail
80 per cent more light and nearly twice the delivered pixels. On globular clusters, planetary nebulae and small galaxies, the eVscope 2 resolves what the Odyssey Pro only suggests. Winner for deep-sky detail: the eVscope 2.
For travel
4.0 kg against 7.0 kg, and both include a tripod. The Odyssey Pro fits in hand luggage territory in a way the eVscope 2 does not. Its 5 h battery is the catch, so pack a USB power source. If travel is your main constraint and you do not need the eyepiece, the Vaonis Vespera III is lighter still at 5.0 kg with 11 h of runtime and costs $2,490. Winner for travel: the Odyssey Pro.
For city skies
Neither has a built-in light-pollution filter; both lean on Deep Dark processing to pull signal out of a bright background. Reviews confirm the Odyssey Pro produces usable deep-sky images from a city centre, which is a genuine field result rather than a specification. But aperture is still the most reliable answer to a bright sky, and the eVscope 2 has 29 mm more of it. Winner for city skies: the eVscope 2. See also our guide to the best smart telescope for light pollution.
For value at this price
Within this pair the Odyssey Pro costs $400 less and gives up real capability to do it, so the eVscope 2 is the better buy of the two. Step outside it and the picture changes: if the eyepiece is not essential to you, the Unistellar eQuinox 2 delivers the same 114 mm optics for $2,899. Winner on value: the eQuinox 2, unless the eyepiece is non-negotiable.
Frequently asked questions
Which one should I buy, the eVscope 2 or the Odyssey Pro?
The eVscope 2, unless weight is your binding constraint. For $400 more you get 114 mm instead of 85 mm, 7.7 MP instead of 4.1 MP and 9 h of battery instead of 5 h. The Odyssey Pro wins only on its 4.0 kg body.
Is the Nikon eyepiece worth the money?
It is the only reason to choose either of these over cheaper Unistellar models. It displays the processed image on a micro-OLED screen rather than a direct optical view, so it changes the experience, not the image quality. On the eVscope 2 it accounts for the $2,100 gap with the eQuinox 2, which produces the same pictures.
Does the eVscope 2 have autofocus?
No. Focusing is manual and slow, because touching the focus ring tends to move the tube. The Odyssey Pro is no better equipped here, but its lighter body suffers less.
Does either one require a subscription?
No. The Unistellar app is free on iOS and Android for both models, with all functions included and nothing locked behind a paid tier.
Is the Celestron Origin Mark II a better buy at $4,299?
In dollars, on optics alone, yes: 152 mm at f/2.2 against 114 mm at f/4 and 85 mm at f/3.9. It has no eyepiece, weighs 18.87 kg, and its quoted runtime of more than 6 h was measured at around 3 h near 0 °C (32 °F). In Europe it costs 5,299 €, which reverses the argument entirely. See all comparisons.