Aperture
50 mm
Aperture describes the objective size. It does not rank image quality, limiting magnitude in your sky or the number of objects you will capture.
Telephoto camera. The wide-angle camera has a 3.4 mm aperture.
ZWO / Smart telescopes
ZWO Seestar S50 Pro
A dual-camera 50 mm apochromatic smart telescope with built-in dual-band and dark-frame filters and an optional Equatorial Mode.
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At a glance
Battery runtime claim
9 h
Runtime claims depend on temperature, mode, tracking and heater use. A laboratory figure is not a measured session length in your conditions.
ZWO laboratory test data: up to 9 h from the 10,000 mAh battery above 25°C in Alt-Azimuth mode with telephoto stargazing mode enabled. Other modes, cold weather and heater use change the result.
Source · 2026-10-21
Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.Included equipment
Seestar S50 Pro, protective case, solar filter, USB Type-C cable, tripod, safety instructions, quick start guide and astronomy-themed stickers.
A tripod, solar filter, case or cable counts only when the selected offer lists it. Pictures and compatible accessories do not establish box contents.
Manufacturer box list on the US store page. No wall charger is listed.
Source · 2026-10-21
Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.The purchase package
Seestar S50 Pro Smart Telescope (US)
The manufacturer's regional note distinguishes a Mainland China version from the overseas version; the US store sells the overseas version. The TH10 fluid head, TC20 carbon tripod and quick-release plate are separate accessories recommended for Equatorial Mode.
Source · 2026-10-21
Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.Select: Seestar S50 Pro Smart Telescope, standard overseas-version package; no colour or bundle options shown
View at Seestar US store (ZWO) — Seestar S50 Pro Smart Telescope (US); opens in a new tabThe link may open several packages. Check current price and availability with the seller. Opens in a new tab.
Specifications & sources
Integrated telescope, camera and motorized mount units controlled from a phone or tablet app and sold new in the US. Conventional telescopes, standalone astronomy cameras, mounts, smart binoculars and image-quality or object-count rankings are outside this catalogue.
Open a field explanation or source for its conditions.
| Compare the details | Seestar S50 Pro Smart Telescope (US) |
|---|---|
| US purchase package | Seestar S50 Pro Smart Telescope, standard overseas-version package; no colour or bundle options shown The manufacturer's regional note distinguishes a Mainland China version from the overseas version; the US store sells the overseas version. The TH10 fluid head, TC20 carbon tripod and quick-release plate are separate accessories recommended for Equatorial Mode. Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
AperturePublished clear aperture of the main imaging optics. Aperture describes the objective size. It does not rank image quality, limiting magnitude in your sky or the number of objects you will capture. | 50 mmTelephoto camera. The wide-angle camera has a 3.4 mm aperture.Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
Focal lengthPublished focal length of the main imaging optics. Focal length with the sensor size sets the documented field of view. A phone-camera equivalent focal length is a marketing comparison, not a magnification result. | 260 mmTelephoto camera at f/5.2. The wide-angle camera is 6 mm at f/1.75. The quoted 880 mm equivalent is a phone-camera comparison, not a magnification.Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
Image sensorThe sensor model or format named by the manufacturer for the main camera and any secondary camera. A sensor name identifies hardware. Processing, stacking and sky conditions decide the result; unknown means the manufacturer did not name the sensor on the retrieved pages. | OmniVision OS08B10 telephoto (1/1.2 in, 2.9 μm) and Sony IMX586 wide-angle (1/2 in, 1.6 μm).Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
Native image resolutionPublished pixel count of a single frame from the main camera. Mosaic or stitching modes advertise larger output sizes; those are assembled from several frames and are kept in the note, not in this value. | 8.3 MP2160 × 3840 for both cameras.Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
Documented field of viewField of view published for the main camera, with any wide-angle camera or mosaic figure kept separate. Compare the native field with the apparent size of your targets. A mosaic field is a documented feature that takes several frames, not a single-frame result. | 2.8° portrait (telephoto); 63° portrait (wide-angle).Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
Mount and tracking modesThe documented mount arrangement, tracking and any equatorial mode with its stated conditions. An equatorial mode can require polar alignment or a separately sold head. Exposure limits tied to a mode are manufacturer conditions, not measured tracking accuracy. | Alt-azimuth mount that supports Equatorial Mode; 60 s exposures require Equatorial Mode and accurate polar alignment.Slew rate 1X–1440X with a mechanical zero position. Equatorial Mode is a documented feature, not a tracking measurement.Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
Built-in filtersFilters documented as internal to the unit, such as UV/IR-cut, dual-band or dark-frame filters. An internal filter wheel is hardware. A dual-band filter passes named wavelengths; it does not promise a result under your light pollution. Separately sold filters are not built in. | UV/IR-cut on both cameras; dual-band light-pollution filter OIII 30 nm / Hα 20 nm and dark-frame filter on the telephoto camera.Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
Solar observing and filterDocumented solar observing conditions and whether the required solar filter is part of the selected package. Never point any telescope or camera at the Sun without the manufacturer-specified filter installed. Follow the maker's current solar instructions for the exact model. | An external magnetic solar filter must be installed before observing the Sun; the manufacturer lists it as an external filter.Whether the filter ships in the box is package-level: see the selected US offer.Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
Battery runtime claimThe manufacturer's stated runtime from the built-in battery, with its test conditions retained in the note. Runtime claims depend on temperature, mode, tracking and heater use. A laboratory figure is not a measured session length in your conditions. | 9 hZWO laboratory test data: up to 9 h from the 10,000 mAh battery above 25°C in Alt-Azimuth mode with telephoto stargazing mode enabled. Other modes, cold weather and heater use change the result.Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
Internal storagePublished built-in storage capacity. Available space is lower than the nominal figure where the manufacturer says so. Check how files are transferred before relying on the capacity. | 128 GB128 GB eMMC; about 100 GB is available to the user.Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
Connectivity and power inputDocumented wireless links, ports and charging input. Wireless ranges are manufacturer statements under their conditions. A USB-C port can be charging only; verify data transfer and the required charger separately. | Wi-Fi 5G/2.4G (range up to 10 m), Bluetooth (up to 5 m) and USB Type-C; power input DC 5V–3A or 12V–3A.Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
App and phone requirementsThe controlling app and the documented minimum phone or tablet conditions. Store listings change. Confirm the current minimum OS, Wi-Fi band and account or activation steps for your own device before buying. | Seestar app from the App Store or Google Play; iOS 13.0 or later and macOS 13.0 with Apple M1 or later per the App Store listing. Minimum Android version not retrieved.Sources · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.Apple App Store: Seestar app listing by SuZhou ZWO Co., LtdChecked 2026-10-21. Read the original source and its check date before relying on this value. |
Unit weightPublished weight of the main unit without a tripod unless stated. Add the tripod, case and accessories you will carry. Conflicting manufacturer figures stay unresolved rather than averaged. | 2.8 kgMain unit only, folded 140 × 149 × 268 mm.Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
Included equipmentItems explicitly listed as supplied in the exact US package. A tripod, solar filter, case or cable counts only when the selected offer lists it. Pictures and compatible accessories do not establish box contents. | Seestar S50 Pro, protective case, solar filter, USB Type-C cable, tripod, safety instructions, quick start guide and astronomy-themed stickers.Manufacturer box list on the US store page. No wall charger is listed.Source · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified. |
Subscription or paid planWhat the retrieved manufacturer and store pages say about app cost, paid plans or subscriptions. A free listing today is not a promise about future terms. Check the current app store listing and the manufacturer's terms before purchase. | App listed as free with no in-app purchases; the product page mentions no subscription.Sources · 2026-10-21Seestar (ZWO): Seestar S50 Pro Smart Telescope US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.Apple App Store: Seestar app listing by SuZhou ZWO Co., LtdChecked 2026-10-21. Read the original source and its check date before relying on this value. |
| Questions to check before buying | No image quality, limiting magnitude, tracking accuracy or object-count result is established here; all figures are manufacturer specifications. The Equatorial Mode and 60 s exposure limit are documented conditions; the S50 Pro page does not state whether the supplied tripod alone is sufficient for polar alignment. |