A smart telescope replaces the eyepiece with a phone screen and the manual star-hopping with an app that finds and tracks the target for you. Five models cover most of what people actually buy in this category, spanning ≈ 351 € (399 $) to nearly ≈ 4 395 € (5,000 $), and the right one depends almost entirely on your budget and whether you want the largest possible aperture or the lightest possible travel setup.
Smart Telescopes Compared
| Model | Price | Aperture | Weight | Best For |
|---|---|---|---|---|
| ZWO Seestar S50 | ≈ 483 € (549 $) | 50mm | 2.5 kg | Best all-round value for dedicated deep-sky imaging |
| ZWO Seestar S30 / S30 Pro | ≈ 351 € (399 $) / ≈ 614 € (699 $)-888 | Not published (base) / dual-lens (Pro) | 1.65 kg (Pro) | Cheapest entry point |
| Dwarf 3 | ≈ 483 € (549 $) | Dual-lens, 737mm eq. telephoto | 1.3-1.35 kg | Lightest, best for travel and daytime dual-use |
| Vaonis Vespera II | From €1,590 | 50mm | 5 kg | Better build quality and panorama imaging |
| Unistellar eVscope 2 / eQuinox 2 | ≈ 4 394 € (4,999 $) / ≈ 2 548 € (2,899 $) | 114mm | 9 kg / 7 kg | Largest aperture, real eyepiece (eVscope 2 only) |
Full specs, real-world verdicts, and current stock status for each model are in their dedicated reviews, linked below.
How to pick between them
If you're deciding purely on price, the Seestar S30 (≈ 351 € (399 $)) is the cheapest, but ZWO's own product page doesn't publish an aperture or battery figure for the base model, see our Seestar S30 review for exactly what that gap in the spec sheet means before you buy it.
If you want the best balance of price and capability, the Seestar S50 is the most-searched product in this entire silo for a reason: a real 50mm aperture, a dual-band light-pollution filter, and a ≈ 483 € (549 $) price that undercuts everything else with a fixed, purpose-built optical design.
If portability matters more than raw aperture, the Dwarf 3 weighs about half what the Seestar S50 does and adds a second wide-angle lens for daytime and wildlife shooting, at the same ≈ 483 € (549 $) price.
If you want noticeably better optics and build quality and don't mind paying for it, the Vaonis Vespera II adds a live panorama feature (CovalENS) that none of the cheaper models offer, starting around €1,590.
If you want the largest aperture and an actual eyepiece to look through, the Unistellar eVscope 2 is the only model here with real 114mm reflector optics and a physical eyepiece, at a ≈ 4 394 € (4,999 $) price that puts it in a different category from everything else on this page.
A note on stock
As of this research (2026-08-20), availability across this entire category was unusually tight: OPT Telescopes had no ZWO Seestar listings at all and only sold-out Vaonis listings, and Explore Scientific's whole smart-telescope category, every Dwarf Lab and Unistellar product it carries, was marked sold out. Check the individual review pages for the current status of the specific model you're considering, since stock changes faster than this comparison can track.
Internal links
- ZWO Seestar S50 Review
- ZWO Seestar S30 Review
- Dwarf 3 Smart Telescope Review
- Vaonis Vespera Review
- Unistellar eVscope Review
- Best Telescope Brands Compared, for traditional (non-smart) telescopes
FAQ
What's the best smart telescope for beginners?
The ZWO Seestar S50 offers the best combination of price (≈ 483 € (549 $)), real aperture, and ease of setup for most first-time buyers.
What's the cheapest smart telescope?
The ZWO Seestar S30 starts at ≈ 351 € (399 $), though its base-model specs aren't fully published by ZWO, see our dedicated review before buying.
Which smart telescope has the best image quality?
The Unistellar eVscope 2's 114mm aperture is the largest in this comparison, delivering more light-gathering power and a higher limiting magnitude than the smaller 50mm models.
Are smart telescopes worth it compared to a traditional telescope?
They trade some optical performance and aperture for dramatically simpler setup, no manual alignment, no separate camera or mount to buy. For casual deep-sky imaging, most buyers find that trade-off worthwhile; dedicated astrophotographers usually still prefer a traditional rig with interchangeable optics.
Sources
- [F001] Evidence files SMT-002 through SMT-006 (this project) : dataset/evidence/