Two models, the numbers decide
ZWO Seestar S50 or ZWO Seestar S50 Pro?
ZWO Seestar S50 — 50 mm, €560. ZWO Seestar S50 Pro — 50 mm, €999. The same method as everywhere on this site: the numbers first, the verdict from them.
Same family (Smart telescope (30–80 mm, integrated camera)): what changes between these two is aperture, bulk and price — not character.
Smart telescope (30–80 mm, integrated camera)
€560indicative, seen 17 Aug 2026
Smart telescope (30–80 mm, integrated camera)
€999seen 23 Oct 2026 at Astroshop
Side by side
| ZWO Seestar S50 | ZWO Seestar S50 Pro | |
|---|---|---|
| Aperture | 50 mm | 50 mm |
| Focal ratio | 250 mm · f/5.0 | 260 mm · f/5.2 |
| Typical weight | 3 kg | 2.8 kg |
| Setup time | 4 minutes | 4 minutes |
| Learning curve | 1 out of 5 | 1 out of 5 |
| Useful magnification | ≤ 100× | ≤ 100× |
| Resolution (Dawes) | 2.3″ | 2.3″ |
| Observed price | €560indicative, seen 17 Aug 2026 | €999seen 23 Oct 2026 at Astroshop |
| Where to buy | All the sellers | See it at Astroshop paid link |
Choose the ZWO Seestar S50 if…
- budget decides: €439 less
Full page on the Seestar S50 →
Where to buy
Search at First Light Optics · Optique Unterlinden · Pierro Astro · Teleskop-Express (searches; neither price nor stock checked)
None of these links earn us anything.
Choose the ZWO Seestar S50 Pro if…
The numbers give it few arguments — the other wins this one.
Full page on the Seestar S50 Pro →
Where to buy
Also search at First Light Optics · Optique Unterlinden · Pierro Astro · Teleskop-Express (searches; neither price nor stock checked)
1 of these 5 links earn us a commission, marked above. Sorted by price, never by what pays. How this site is funded.
Price alert
One email when the price we observe for the ZWO Seestar S50 Pro falls at least 5% below the lowest we observed in the previous 30 days. At most one a week.
The same sky, through both
Both are smart telescopes: no eyepiece to simulate. They stack photographs; the comparison is the spec sheet, the weight and what each app delivers.
Other duels with these models
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