# Seestar S30 Pro vs S50 Pro: Specs, Field & Verdict > Seestar S30 Pro vs S50 Pro: 2.8× the light against a 4° field and half the weight. Specs, framing, battery, price and which one suits how you'll observe. - Source: https://smarttelescopereview.com/posts/seestar-s30-pro-vs-s50-pro/ - Markdown version: https://smarttelescopereview.com/posts/seestar-s30-pro-vs-s50-pro.md - Last updated: 2026-11-12 --- - [Home](https://smarttelescopereview.com/) - [Guides](https://smarttelescopereview.com/guides/) - Seestar S30 Pro vs S50 Pro: Which ZWO Smart Telescope Should You Buy? Head-to-head # Seestar S30 Pro vs S50 Pro: Which ZWO Smart Telescope Should You Buy? Updated November 12, 2026 By [Smart Telescope Review Editorial Team](https://smarttelescopereview.com/about/) [How we research](https://smarttelescopereview.com/how-we-research/) Prices are approximate and change often, so check the current price before you buy. ## Key takeaways - The **S50 Pro** gathers about 2.8× the light of the S30 Pro and samples the sky more finely (about 2.3″ vs 3.7″ per pixel): better for galaxies and small nebulae. - The **S30 Pro** has the wider field (about 4° × 2.2° vs 2.45° × 1.38°): the Andromeda Galaxy fits in one frame, where the S50 Pro needs two panels. - The S30 Pro weighs 1.65 kg against 2.8 kg; the S50 Pro adds a carbon tripod, hard case and a 9-hour battery rating (ZWO) against 6 hours. - Neither is a planetary scope: Jupiter is about 12 px across on the S30 Pro and about 20 px on the S50 Pro. - EQ mode costs less on the S50 Pro (TH10 head, about $94) than on the S30 Pro (TH10 plus TC20 tripod, about $180). ## Our top picks - 1![ZWO Seestar S50 Pro Smart Telescope](https://smarttelescopereview.com/_astro/seestar-s50-pro.BOj1gADQ_1F3c68.webp)Best for backyard deep-sky: 50 mm, 9 h battery (ZWO), tripod and case included, about $999[ZWO Seestar S50 Pro Smart Telescope](https://smarttelescopereview.com/smart-telescopes/seestar-s50-pro/)50 mm f/5.2 · 2.45° × 1.38° · 6.2 lb8.6**$$**$$Mid-rangePrice tier: Mid-range[Check price on Amazon](https://www.amazon.com/dp/B0HP1RDLVP?tag=smarttelescopereview.com-20) - 2![ZWO Seestar S30 Pro Smart Telescope](https://smarttelescopereview.com/_astro/seestar-s30-pro.DqtA63or_29e8vC.webp)Best for travel and wide fields: 1.65 kg, about 4° × 2.2° field, about $664[ZWO Seestar S30 Pro Smart Telescope](https://smarttelescopereview.com/smart-telescopes/seestar-s30-pro/)30 mm f/5.3 · 3.99° × 2.24° · 3.6 lb8.5**$$**$$Mid-rangePrice tier: Mid-range[Check price](https://www.amazon.com/dp/B0GYX9GSVX?tag=smarttelescopereview.com-20) ### On this page 9 sections - [Specs side by side](#specs-side-by-side) - [Aperture: 2.8× the light](#aperture-28-the-light) - [Field of view: what each frames better](#field-of-view-what-each-frames-better) - [Weight, battery and storage](#weight-battery-and-storage) - [Sensors and the review record](#sensors-and-the-review-record) - [EQ mode and accessories](#eq-mode-and-accessories) - [Verdict by user type](#verdict-by-user-type) - [How we compared](#how-we-compared) - [FAQ](#faq) ## Before you choose - [Seestar S50 Discontinued? What Happened, the S50 Pro Reviewed, and What to Buy Instead](https://smarttelescopereview.com/posts/seestar-s50-discontinued-what-to-buy/) - [Seestar S30 Plus vs S30 Pro: Is the New $474 Seestar Worth the Savings?](https://smarttelescopereview.com/posts/seestar-s30-plus-vs-s30-pro/) - [Best Smart Telescope for Travel (2026): Light, Long-Running Picks for Flights and Dark Skies](https://smarttelescopereview.com/posts/best-smart-telescope-for-travel/) The Seestar S30 Pro and S50 Pro are the two telescopes most people end up choosing between in 2026. They share an app, a 1/1.2-inch 3840 × 2160 sensor format, a 63° wide camera, a built-in dual-band filter and a solar filter in the box. What separates them is aperture, field of view and weight, and those three things decide what each one does best. We haven’t tested either telescope ourselves. This comparison draws on ZWO’s spec pages, live Amazon prices from November 12, 2026, and reviews by BBC Sky at Night, Digital Camera World, Live Science, Fstoppers and AstroBackyard. Check today’s price before you buy. ## Specs side by side | | [Seestar S30 Pro](https://smarttelescopereview.com/smart-telescopes/seestar-s30-pro/) | [Seestar S50 Pro](https://smarttelescopereview.com/smart-telescopes/seestar-s50-pro/) | | --- | --- | --- | | Aperture / focal length | 30 mm / 160 mm (f/5.3) | 50 mm / 260 mm (f/5.2) | | Lens | 4-element ED apochromat | 4-element ED apochromat | | Main sensor | Sony IMX585, 1/1.2-inch | OmniVision OS08B10, 1/1.2-inch | | Resolution / pixel | 3840 × 2160, 2.9 µm | 3840 × 2160, 2.9 µm | | Pixel scale | About 3.7″ per pixel | About 2.3″ per pixel | | Field of view (computed) | About 3.99° × 2.24° | About 2.45° × 1.38° | | Wide camera | Sony IMX586, 4K, 63° | Sony IMX586, 8.3 MP, 63° | | Battery (ZWO) | 6,000 mAh, about 6 h | 10,000 mAh, up to 9 h | | Weight | 1.65 kg | 2.8 kg (Live Science: 2.7 kg) | | Storage | 128 GB | 128 GB | | In the box | Mini tripod, solar filter | Carbon tripod, hard case, solar filter | | EQ mode extras | TH10 head + TC20 tripod (about $180) | TH10 head (about $94) | | Amazon price (Nov 12, 2026) | About $664 | About $999 | | Our score | 8.5 | 8.6 | ## Aperture: 2.8× the light Light-gathering scales with the area of the lens. A 50 mm lens has (50 ÷ 30)², or about 2.8 times, the area of a 30 mm lens. In practice, the S50 Pro builds the same signal in roughly a third of the time, or goes deeper in the same session. Aperture and light grasp Bar length is light-gathering area (aperture squared), so a 114 mm mirror collects about 5× what a 50 mm lens does. Celestron Unistellar ZWO Vaonis DWARFLAB [Origin Mark II 152 mm](https://smarttelescopereview.com/smart-telescopes/celestron-origin-mark-ii/)[StarSense DX 130AZ 130 mm](https://smarttelescopereview.com/smart-telescopes/celestron-starsense-dx-130az/)[StarSense LT 114AZ 114 mm](https://smarttelescopereview.com/smart-telescopes/celestron-starsense-lt-114az/)[eQuinox 2 114 mm](https://smarttelescopereview.com/smart-telescopes/unistellar-equinox-2/)[eVscope 2 114 mm](https://smarttelescopereview.com/smart-telescopes/unistellar-evscope-2/)[Unistellar Odyssey 85 mm](https://smarttelescopereview.com/smart-telescopes/unistellar-odyssey/)[Odyssey Pro 85 mm](https://smarttelescopereview.com/smart-telescopes/unistellar-odyssey-pro/)[Seestar S50 Pro 50 mm](https://smarttelescopereview.com/smart-telescopes/seestar-s50-pro/)[Vespera II 50 mm](https://smarttelescopereview.com/smart-telescopes/vaonis-vespera-ii/)[Vespera 3 50 mm](https://smarttelescopereview.com/smart-telescopes/vaonis-vespera-3/)[Vespera Pro 2 50 mm](https://smarttelescopereview.com/smart-telescopes/vaonis-vespera-pro-2/)[Dwarf 3 35 mm](https://smarttelescopereview.com/smart-telescopes/dwarf-3/)[Dwarf Mini 30 mm](https://smarttelescopereview.com/smart-telescopes/dwarf-mini/)[Seestar S30 Plus 30 mm](https://smarttelescopereview.com/smart-telescopes/seestar-s30-plus/)[Seestar S30 Pro 30 mm](https://smarttelescopereview.com/smart-telescopes/seestar-s30-pro/) Aperture sets how faint and how sharp you can go; focal ratio sets how fast an image builds. See [how smart telescopes work](https://smarttelescopereview.com/posts/how-smart-telescopes-work/). That matters most on faint, small targets: galaxies like M51 and M101, planetary nebulae and the outer arms of spirals. The S50 Pro’s longer focal length also puts more pixels on each object. To see how much stacking time a target needs on each scope under your sky, try the [integration time tool](https://smarttelescopereview.com/tools/integration-time/#target=m101&scope=seestar-s50-pro&bortle=7) and switch between the two. On planets, neither scope is the right tool. ZWO says neither is intended for planets. Jupiter comes out about 20 pixels across on the S50 Pro and about 12 on the S30 Pro. BBC Sky at Night caught Jupiter and its four big moons with the S30 Pro but no surface detail, and Fstoppers saw a small dot. If planets matter, read our [best smart telescope for planets](https://smarttelescopereview.com/posts/best-smart-telescope-for-planets/) guide. ## Field of view: what each frames better The S30 Pro’s shorter focal length gives it the widest native field we track, about 4° × 2.2°. The S50 Pro’s is about 2.45° × 1.38°. Native field of view How much sky the main camera frames in one shot (bar length = area in square degrees). The full Moon is about 0.5° across. ZWO DWARFLAB Vaonis Celestron Unistellar [Seestar S30 Pro 3.99° × 2.24°](https://smarttelescopereview.com/smart-telescopes/seestar-s30-pro/)[Dwarf 3 2.93° × 1.65°](https://smarttelescopereview.com/smart-telescopes/dwarf-3/)[Seestar S30 Plus 2.66° × 1.5°](https://smarttelescopereview.com/smart-telescopes/seestar-s30-plus/)[Vespera 3 2.6° × 1.4°](https://smarttelescopereview.com/smart-telescopes/vaonis-vespera-3/)[Vespera II 2.5° × 1.4°](https://smarttelescopereview.com/smart-telescopes/vaonis-vespera-ii/)[Seestar S50 Pro 2.45° × 1.38°](https://smarttelescopereview.com/smart-telescopes/seestar-s50-pro/)[Vespera Pro 2 1.6° × 1.6°](https://smarttelescopereview.com/smart-telescopes/vaonis-vespera-pro-2/)[Dwarf Mini 2.13° × 1.2°](https://smarttelescopereview.com/smart-telescopes/dwarf-mini/)[Origin Mark II 1.32° × 0.75°](https://smarttelescopereview.com/smart-telescopes/celestron-origin-mark-ii/)[eQuinox 2 0.76° × 0.57°](https://smarttelescopereview.com/smart-telescopes/unistellar-equinox-2/)[eVscope 2 0.76° × 0.57°](https://smarttelescopereview.com/smart-telescopes/unistellar-evscope-2/)[Unistellar Odyssey 0.75° × 0.56°](https://smarttelescopereview.com/smart-telescopes/unistellar-odyssey/)[Odyssey Pro 0.75° × 0.56°](https://smarttelescopereview.com/smart-telescopes/unistellar-odyssey-pro/) Wider fields fit big nebulae and Andromeda; narrower fields put more pixels on small galaxies. Try any target in the [framing calculator](https://smarttelescopereview.com/tools/fov-calculator/). The S30 Pro frames better: - The Andromeda Galaxy, about 3° long, fits in one S30 Pro frame. The S50 Pro needs a two-panel mosaic. [Compare M31 on the S30 Pro](https://smarttelescopereview.com/tools/fov-calculator/#target=m31&scope=seestar-s30-pro) with [M31 on the S50 Pro](https://smarttelescopereview.com/tools/fov-calculator/#target=m31&scope=seestar-s50-pro). - The Pleiades (about 110′) fit on the S30 Pro and need two panels on the S50 Pro. [See the Pleiades on the S30 Pro](https://smarttelescopereview.com/tools/fov-calculator/#target=m45&scope=seestar-s30-pro). - The North America Nebula (about 2° × 1.7°) sits comfortably in the S30 Pro’s frame and overflows the S50 Pro’s. [Check NGC 7000](https://smarttelescopereview.com/tools/fov-calculator/#target=ngc7000&scope=seestar-s30-pro). The S50 Pro frames better: - Medium nebulae such as the Orion Nebula and the Rosette fit on both, but fill more of the S50 Pro frame, so you keep more detail after cropping. [See M42 on the S50 Pro](https://smarttelescopereview.com/tools/fov-calculator/#target=m42&scope=seestar-s50-pro). - Small galaxies like the Whirlpool are tiny in a 30 mm frame. [Compare M51 on the S50 Pro](https://smarttelescopereview.com/tools/fov-calculator/#target=m51&scope=seestar-s50-pro). Both scopes can build deep-sky mosaics, and both use the wide camera for 8K Milky Way stitching, so the S50 Pro can still cover big targets with more panels and time. ## Weight, battery and storage At 1.65 kg, the S30 Pro fits in a daypack or carry-on with room to spare. The S50 Pro’s 2.8 kg is still portable, but it’s a “drive to the dark site” scope rather than a hiking companion. Our [best smart telescope for travel](https://smarttelescopereview.com/posts/best-smart-telescope-for-travel/) guide ranks the S30 Pro first for that reason. ZWO rates the S50 Pro at up to 9 hours on its 10,000 mAh battery (first quoted as 7 hours) and the S30 Pro at about 6 hours on 6,000 mAh. Digital Camera World got well over six hours from the S50 Pro; AstroBackyard notes it drops in the cold. Both charge over USB-C, and the S50 Pro also accepts 12 V. Both have 128 GB of storage. ## Sensors and the review record The S30 Pro uses Sony’s IMX585. The S50 Pro uses an OmniVision OS08B10 of the same 1/1.2-inch size and pixel pitch, and AstroBackyard notes the switch away from Sony “has caused controversy.” Reviewers still praise the S50 Pro’s images, and Digital Camera World called it a versatile two-camera telescope with impressive imaging. The S30 Pro has a longer track record. BBC Sky at Night gave it 4 stars, Fstoppers billed it as the ultimate beginner smart telescope and noted capture continues if the app disconnects, and Space.com picks it for portability. Digital Camera World’s cons were full reliance on the phone app and frequent data downloads. For the S50 Pro, Live Science found the included tripod very short and typos in the app. ## EQ mode and accessories Both support EQ mode, which removes field rotation and allows longer exposures. The S50 Pro needs only ZWO’s [TH10 head](https://www.amazon.com/dp/B0FN82SCJL?tag=smarttelescopereview.com-20) (about $94). The S30 Pro also needs the taller [TC20 tripod](https://www.amazon.com/dp/B0FN8412CW?tag=smarttelescopereview.com-20), or buy the [TH10 + TC20 bundle](https://www.amazon.com/dp/B0FN82ZLHM?tag=smarttelescopereview.com-20) for about $180. That narrows the real price gap if you plan to use EQ mode. Our [EQ mode explainer](https://smarttelescopereview.com/posts/smart-telescope-eq-mode-explained/) shows when it’s worth it. ## Verdict by user type - **Backyard imager, mostly galaxies and nebulae:** S50 Pro. More light, finer sampling, and the tripod and case are included. [Check the S50 Pro price](https://www.amazon.com/dp/B0HP1RDLVP?tag=smarttelescopereview.com-20). - **Traveler, hiker or apartment dweller:** S30 Pro. Half the weight and the wide field suit grab-and-go nights. [Check the S30 Pro price](https://www.amazon.com/dp/B0GYX9GSVX?tag=smarttelescopereview.com-20). - **Big nebulae, Andromeda and Milky Way panoramas:** S30 Pro, which frames them in one shot. - **First telescope, unsure of the hobby:** S30 Pro, or the cheaper S30 Plus covered in [S30 Plus vs S30 Pro](https://smarttelescopereview.com/posts/seestar-s30-plus-vs-s30-pro/). - **Replacing an original S50:** S50 Pro, its direct successor. See [Seestar S50 discontinued](https://smarttelescopereview.com/posts/seestar-s50-discontinued-what-to-buy/). ## How we compared Fields of view and pixel scales are computed from each sensor’s pixel grid, 2.9 µm pixels and ZWO’s focal lengths; framing results come from the same math as our [FOV calculator](https://smarttelescopereview.com/tools/fov-calculator/). Scores weight image quality and optics at 35%, ease of use at 25%, portability and build at 20% and value at 20%. More on [how we research](https://smarttelescopereview.com/how-we-research/). ## Don't guess. Calculate. - [🔭 Sky Target Checker](https://smarttelescopereview.com/tools/sky-target-checker/): what each scope can see from your sky - [🖼️ FOV Calculator](https://smarttelescopereview.com/tools/fov-calculator/): framing and mosaics, scope by scope - [🎯 Telescope Matcher](https://smarttelescopereview.com/tools/telescope-matcher/): which scopes fit your budget and goals - [📊 Compare every scope](https://smarttelescopereview.com/smart-telescopes/): sortable spec table ## Frequently asked questions ### Is the Seestar S50 Pro better than the S30 Pro? For backyard deep-sky imaging, yes: its 50 mm lens collects about 2.8 times the light of the S30 Pro's 30 mm, and its finer pixel scale shows more detail in galaxies and small nebulae. The S30 Pro is better for travel, wide nebulae and Milky Way panoramas, and costs about $335 less on Amazon (Nov 12, 2026). ### Which Seestar has the wider field of view? The S30 Pro. Its field works out to about 3.99° × 2.24° (ZWO quotes 4.6° diagonal), against about 2.45° × 1.38° on the S50 Pro (2.8° diagonal). The Andromeda Galaxy fits in one S30 Pro frame but needs a two-panel mosaic on the S50 Pro. ### Can either Seestar photograph planets? Only as small discs. ZWO says neither is intended for planets. BBC Sky at Night captured Jupiter and its Galilean moons with the S30 Pro but no planetary detail. Jupiter is about 12 pixels across on the S30 Pro and about 20 on the S50 Pro. ### Do both Seestars include a solar filter? Yes. Both ship with a solar filter. The S50 Pro also includes a carbon tripod and a hard case; the S30 Pro comes with a mini tripod. ### What do I need for EQ mode on each Seestar? The S50 Pro needs only ZWO's TH10 head (about $94). The S30 Pro needs the TH10 head and the taller TC20 tripod, sold together for about $180. ## Sources - [ZWO: Seestar S30 Pro product page](https://www.zwoastro.com/product/seestar-s30-pro/) · checked 2026-11-12 — 30 mm f/5.3 four-element ED apochromat, Sony IMX585 4K sensor, 63° 4K wide camera, 6,000 mAh battery rated about 6 hours, 1.65 kg, 128 GB. - [ZWO: Seestar S50 Pro product page](https://www.zwoastro.com/product/seestar-s50-pro/) · checked 2026-11-12 — 50 mm f/5.2 four-element ED apochromat, OmniVision OS08B10 sensor, 10,000 mAh battery rated up to 9 hours, 2.8 kg; solar filter, hard case and carbon tripod included. - [BBC Sky at Night: ZWO Seestar S30 Pro review](https://www.skyatnightmagazine.com/reviews/zwo-seestar-s30-pro) · checked 2026-11-12 — Planets are too small to show detail, but the reviewer captured Jupiter and its Galilean moons. - [Digital Camera World: ZWO Seestar S50 Pro review](https://www.digitalcameraworld.com/optics/telescopes/zwo-seestar-s50-pro-review-a-versatile-two-camera-smart-telescope-with-impressive-imaging-capabilities) · checked 2026-11-12 — A versatile two-camera smart telescope; battery lasted well over six hours; EQ mode needs an accessory and planetary imagers should look elsewhere. - [Fstoppers: ZWO Seestar S30 Pro review](https://fstoppers.com/reviews/zwo-seestar-s30-pro-ultimate-beginner-smart-telescope-900067) · checked 2026-11-12 — Jupiter appears as a small dot; capture continues when the app disconnects. - [Space.com: The best smart telescopes](https://www.space.com/best-smart-telescopes) · checked 2026-11-12 — Picks the Seestar S50 Pro for value on small budgets and the S30 Pro for portability. ## Get new guides by e-mail One short e-mail when Smart Telescope Review publishes a new guide. No spam, no sharing your address, and you can unsubscribe in one click. E-mail address New posts only · Unsubscribe anytime · [Privacy](https://smarttelescopereview.com/privacy/) Our #1 pick Best for backyard deep-sky: 50 mm, 9 h battery (ZWO), tripod and case included, about $999 ![ZWO Seestar S50 Pro Smart Telescope](https://smarttelescopereview.com/_astro/seestar-s50-pro.BOj1gADQ_21iw81.webp) ### [ZWO Seestar S50 Pro Smart Telescope](https://smarttelescopereview.com/smart-telescopes/seestar-s50-pro/) 8.6 - 50 mm f/5.2 - 2.45° × 1.38° field - 6.2 lb - EQ mode - Dual-band filter Most buyers: the best all-round smart telescope for backyard deep-sky imaging, the Moon and the Sun at under $1,000, and the direct replacement for the discontinued Seestar S50. $$$$ Mid-range Price tier: Mid-range Amazon price, Nov 12, 2026 [Check price on Amazon](https://www.amazon.com/dp/B0HP1RDLVP?tag=smarttelescopereview.com-20)[Read the full review](https://smarttelescopereview.com/smart-telescopes/seestar-s50-pro/) [🎯 Not sure which fits? Match a smart telescope to your budget, sky and targets in 30 seconds.](https://smarttelescopereview.com/tools/telescope-matcher/)[🔭 What can it see? Check 56 targets against your sky and any scope.](https://smarttelescopereview.com/tools/sky-target-checker/) ## Keep reading [S50 replacement ### Seestar S50 Discontinued? What Happened, the S50 Pro Reviewed, and What to Buy Instead The original Seestar S50 is out of stock and discontinued. Here's how the S50 Pro compares, what reviewers found, and the best alternatives at lower prices. Updated Nov 12, 2026](https://smarttelescopereview.com/posts/seestar-s50-discontinued-what-to-buy/)[Head-to-head ### Seestar S30 Plus vs S30 Pro: Is the New $474 Seestar Worth the Savings? Seestar S30 Plus vs S30 Pro: same 30 mm lens, but a 2K sensor, fewer wide-camera modes and half the storage for $190 less. See what you give up. Updated Nov 12, 2026](https://smarttelescopereview.com/posts/seestar-s30-plus-vs-s30-pro/)[Travel ### Best Smart Telescope for Travel (2026): Light, Long-Running Picks for Flights and Dark Skies The best travel smart telescopes of 2026, compared on weight, size, battery life in the cold and carry-on fit: Seestar S30 Pro, Dwarf Mini, Dwarf 3 and more. Updated Nov 12, 2026](https://smarttelescopereview.com/posts/best-smart-telescope-for-travel/) Best for backyard deep-sky: 50 mm, 9 h battery (ZWO), tripod and case included, about $999 Seestar S50 Pro $$$$ Mid-range Price tier: Mid-range [Check price](https://www.amazon.com/dp/B0HP1RDLVP?tag=smarttelescopereview.com-20)