Seestar smart telescopes

ZWO's Seestar range made smart telescopes mainstream: compact all-in-one refractors with built-in dual-band filters, EQ mode and one of the largest owner communities, from $399.

Made by: ZWO
Warranty: 2 years on the telescope body and camera; 1 year on the battery (ZWO warranty policy). China-version units are not covered outside mainland China.
Official site: www.seestar.com

Seestar models we cover

Sorted by research score.

Seestar S50 Pro

8.0/10 Excellent

List price $999 (as of Oct 2026)

ZWO's new flagship (August 2026): 50 mm 4-element apochromat at 260 mm, a large 1/1.2-inch 4K sensor, a 4K wide-angle camera, a 10,000 mAh battery rated up to 9 hours and 128 GB storage.

Pros

Large 1/1.2-inch 4K sensor
Battery rated up to 9 hours
4K wide-angle camera and solar filter included
Open ASCOM Alpaca support for N.I.N.A.

Cons

Too new for long-term reliability data
Duo-band filter on the telephoto camera only
60 s exposures need EQ mode and polar alignment

Check price at Seestar

Seestar S30 Pro

7.7/10 Good

List price $699 (as of Oct 2026)

The S30 upgraded with a 4K (8.3 MP) Sony IMX585 telephoto camera, a 4K wide-angle camera, a 4-element apochromat, 128 GB storage and active anti-dew control, still 3.6 lb.

Pros

4K (8.3 MP) telephoto and wide-angle cameras
Active anti-dew control
Up to 60 s exposures in EQ mode
3.6 lb with 128 GB storage

Cons

30 mm aperture gathers less light than 50 mm models
Planets appear small (160 mm focal length)
EQ mode needs a tilting tripod head (sold separately)

Check price at Seestar

Seestar S50

7.3/10 Good

List price $499 (as of Oct 2026)

The smart telescope that made the category mainstream: a 50 mm triplet apochromat, 250 mm focal length, built-in duo-band filter and dew heater in a 5.5 lb body. ZWO has discontinued it.

Pros

50 mm aperture and 250 mm focal length
Built-in duo-band filter and dew heater
Solar filter included
Huge owner community and guides

Cons

Discontinued; sold out at ZWO
Only 2.1 MP (1080p) images
No wide-angle camera

Check stock at Seestar

Seestar S30

7.2/10 Good

List price $399 (as of Oct 2026)

ZWO's smallest original Seestar: a 30 mm triplet apochromat with a 1080p telephoto camera, a wide-angle camera, built-in duo-band filter and a 6-hour battery in a 3.6 lb body.

Pros

Light enough for any trip (3.6 lb)
Built-in duo-band light-pollution filter
Solar filter and wide-angle camera included
Very easy app with a huge owner community

Cons

Only 2.1 MP (1080p) images
Short 150 mm focal length for planets
Sold out on seestar.com (October 2026)

Check stock at Seestar

About Seestar

Seestar is the smart-telescope brand of ZWO, a Chinese company best known for its ASI astronomy cameras and ASIAIR controllers. The Seestar S50 (2023) turned smart telescopes from a $2,000-plus niche into a $500 product, and Seestar now has one of the largest owner communities of any smart-telescope brand, which means more tutorials, forum answers and third-party accessories.

The current range

Model	Aperture / focal length	Main sensor	Battery (ZWO rating)	Weight	Price
S30 Pro	30 mm / 160 mm	Sony IMX585, 4K	about 6 h	3.6 lb	$699
S50 Pro	50 mm / 260 mm	OmniVision OS08B10, 4K	up to 9 h	6.2 lb	$999
S30	30 mm / 150 mm	Sony IMX662, 1080p	about 6 h	3.6 lb	$399 (sold out)
S50	50 mm / 250 mm	Sony IMX462, 1080p	about 6 h	5.5 lb	$499 (discontinued)

Prices from seestar.com on October 17, 2026.

Every Seestar has a duo-band light-pollution filter and a dark filter built in, a magnetic solar filter, autofocus, FITS files and support for EQ mode on a tilting head such as ZWO's TH10. The S30 Pro and S50 Pro add a 4K wide-angle camera for Milky Way and landscape shots.

Strengths and weak points

Seestars are the easiest smart telescopes to recommend: the app is polished, setup is automatic, and the prices undercut most rivals. The weak points are short focal lengths for planets, a closed system (no external filters or camera upgrades), and EQ mode needing a separate head. The most-searched Seestar problems are firmware updates, calibration and Wi-Fi connections; our guides cover connection problems, failed firmware updates and GoTo and compass calibration.

Where to buy

Seestars are sold on seestar.com and through retailers including Amazon. Buy the overseas (international) version: ZWO says China-version units can only be activated in mainland China, Hong Kong and Macau, and are not covered by warranty elsewhere.

Seestar questions

Who makes Seestar telescopes?

ZWO, a Chinese maker of astronomy cameras and the ASIAIR controller. Seestar is its smart-telescope brand; each Seestar contains an ASIAIR-style controller, camera, focuser, filters and mount in one body.

Which Seestar should I buy?

For most people, the S30 Pro ($699) for portability and a 4K sensor, or the S50 Pro ($999) for more aperture, a longer focal length and a 9-hour battery rating. The S30 ($399) and S50 ($499) were sold out at ZWO in October 2026, and ZWO has discontinued the S50.

Is the Seestar S50 discontinued?

Yes. ZWO announced it at NEAF 2026, and it was sold out on seestar.com in October 2026. The S50 Pro replaces it.