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ZWO Seestar S50 Smart Telescope vs Celestron AstroMaster 130EQ-MD

Buy the Seestar S50 if you want photos without learning polar alignment, tracking and stacking. Buy the AstroMaster 130EQ-MD if you want the most light-gathering aperture for visual observing and are willing to learn an equatorial mount. The Seestar is a sealed, app-driven camera telescope that stacks and shares images on its own; the Celestron is a conventional 130 mm Newtonian on a motorized CG-3 mount that shows faint objects to your eye but needs alignment, collimation and a phone adapter for any imaging. Owners of the Seestar praise how quickly it produces a finished image; owners of the AstroMaster praise the aperture for the outlay but note the mount is the weak link.

  • Choose the Seestar S50 if you want a grab-and-go scope that finds targets and delivers finished astrophotos from a phone, with no polar alignment or collimation.
  • Choose the AstroMaster 130EQ-MD if your goal is seeing faint deep-sky objects with your own eye and you want the largest aperture and a motorized equatorial mount to grow into.

Prices

  • ZWO Seestar S50 Smart Telescope: $402.00 at Lensrentals (last seen Nov 9)
  • Celestron AstroMaster 130EQ-MD: $389.95 at Walmart (checked today)
  • Difference: the Celestron AstroMaster 130EQ-MD is $12.05 cheaper than the ZWO Seestar S50 Smart Telescope at the latest prices (Nov 9 and Nov 10)
ZWO
Seestar S50 Smart Digital Telescope

ZWO Seestar S50 Smart Telescope

Seestar S50 Smart Digital Telescope

$402.00at LensrentalsChecked Nov 9
See all prices and details
Visit Lensrentals
Pros
  • Finds and tracks targets automatically through the app
  • Stacks exposures into a finished image without a laptop
  • Light enough to carry out in one trip with its case
  • Runs about 6 hours on the internal 6000 mAh battery
  • Works for beginners and experienced imagers alike
Cons
  • 50 mm aperture limits faint-object detail
  • Not a visual telescope; you look at a screen, not an eyepiece
  • Electronics and battery are the long-term wear points
  • Needs dry storage; humidity is a stated risk
Celestron
Celestron AstroMaster 130EQ-MD

Celestron AstroMaster 130EQ-MD

$389.95at WalmartChecked 5 h ago
See all prices and details
Visit Walmart
Pros
  • 130 mm aperture shows faint clusters, nebulae and galaxies
  • Motorized equatorial mount tracks as the sky moves
  • Accepts standard eyepieces, Barlow and filters
  • Erect-image optics make it usable for terrestrial viewing
  • Simple optics with no software to depend on
Cons
  • Heavy at 17 lb before the tripod and weights
  • Equatorial alignment and collimation take practice
  • Motor drive is single-axis; long-exposure imaging still needs guiding
  • No camera; smartphone imaging is basic
  • The mount is often cited as the limiting part

What separates them

ZWO Seestar S50 Smart TelescopeCelestron AstroMaster 130EQ-MD
Optical design50 mm apochromatic triplet refractor, sealed tube130 mm f/5 Newtonian reflector, open tube needing collimation
Light gatheringSmall aperture suited to bright nebulae, clusters and the MoonAbout 6.8x the light-gathering area; better on faint galaxies and nebulae visually
ImagingBuilt-in camera, live stacking and phone-controlled capture; finished images in minutesNo camera; imaging needs a smartphone adapter and manual tracking skill
Mount and trackingMotorized alt-azimuth, goto and auto-tracking built inCG-3 equatorial with motor drive on one axis; needs polar alignment
Setup and skillLevel, power on, pick a target in the app; beginner-friendlyAssemble tripod and mount, balance, polar align, collimate; steeper learning curve
Portability2.5 kg all-in-one with carrying case and 6-hour internal battery17 lb plus tripod and counterweights; needs external power or batteries
Visual observingSmall eyepiece-free field; best viewed as images on a screenReal eyepiece views at up to roughly 307x with a Barlow
Durability and careSealed optics but not for humid storage; electronics and battery ageSimple optics, no electronics beyond the drive; mirror can be recoated

Price history

  • ZWO Seestar S50 Smart Telescope: lowest $402.00 on Nov 9 at Lensrentals.
  • Celestron AstroMaster 130EQ-MD: lowest $389.95 on Nov 10 at Best Buy.

Prices at every store

ZWO Seestar S50 Smart Telescope

  • LensrentalsNew

    Availability unknown

    $402.00Checked Nov 9
    Visit Lensrentals
  • Alibaba.comNew

    Availability unknown

    $490.00Checked Nov 9
    Visit Alibaba.com
  • davidastro.comNew

    Availability unknown

    $499.00Checked Nov 9
    Visit davidastro.com
  • Ontario Telescope and AccessoriesNew

    Availability unknown

    $513.00Checked Nov 9
    Visit Ontario Telescope and Accessories

Also available at

  • eBayCheck price at eBay

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All 11 stores and price history →

Celestron AstroMaster 130EQ-MD

  • WalmartNew

    In stockSold by Celestron, LLCReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $389.95Free shippingChecked 5 h ago
    Visit Walmart
  • Best BuyNew

    In stock

    $389.95Free shippingChecked 5 h ago
    Visit Best Buy
  • AdoramaNew

    In stock

    $389.95Free shippingChecked 5 h ago
    Visit Adorama
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $389.95Free shippingChecked 5 h ago
    Visit Amazon

Store links may earn us a commission. Some prices via Klarna.

All 5 stores and price history →

Specs compared

SpecZWO Seestar S50 Smart TelescopeCelestron AstroMaster 130EQ-MD
MagnificationAuto focusDifferent magnifications (for low and high powe…
Objective Lens Diameter50 mm5.12
Supported AccessoriesFilterSmartphone
Weight2.5 kg17 lb
Mount TypeAlt-azimuthManual German Equatorial telescope mount
ColorBlackBlue, Black
Focus TypeAuto focus—
ResistanceNot recommended to store in high humidity envir…—
Dimensions142.5 x 130 x 257—
Battery Life6 hours—
Battery Type6000 mAh—
Power SourceBattery—
Show all 40 specsShow fewer specs
SpecZWO Seestar S50 Smart TelescopeCelestron AstroMaster 130EQ-MD
Case TypeCarrying case—
Compatible TypesTelescopes—
BluetoothYes—
Wi-Fi5G—
Included AccessoriesLens Cover—
Included MountsYes—
Coating MaterialMetal-coated (outer surface of solar filter)—
Lens MaterialApochromatic triplet—
EnvironmentOutdoor—
Skill Level

What reviewers say

ZWO Seestar S50 Smart Telescope

Owners treat the S50 as an easy first step into astrophotography, praising how quickly it produces usable images with little setup. Complaints center on its small aperture and the limits of the app and sensor rather than on build quality.

What people mention
  • Ease of setupPraisedOwners say it aligns and starts imaging in minutes with almost no astronomy knowledge.
  • Image qualityPraisedUsers report clean, colorful stacked images of the Moon and bright nebulae straight from the app.
  • ApertureCriticisedReviewers note that 50 mm struggles with faint galaxies and small deep-sky objects.
  • AppMixedThe phone app is central to use, and users report both convenience and occasional bugs.

Celestron AstroMaster 130EQ-MD

Owners treat it as a solid first reflector with the convenience of tracking, but many say the mount is the weak point and the stock eyepieces are worth replacing.

What people mention
  • Mount stabilityCriticisedOwners say the CG-3 tripod shakes with light touches and needs patience to settle.
  • TrackingPraisedThe motorized RA drive keeps objects in the eyepiece without constant nudging.
  • EyepiecesCriticisedReviewers call the included eyepieces basic and often upgrade them early.
  • Optical viewsPraisedUsers report bright, detailed views of the Moon, planets and brighter deep-sky objects.

Questions and answers

Which is better for a beginner who wants pictures?
The Seestar S50. It finds the target, tracks it and stacks frames into a finished image from the app, so you skip polar alignment, guiding and post-processing. The AstroMaster can take phone photos, but you do the alignment and tracking work yourself.
Which shows more through the eyepiece?
The AstroMaster 130EQ-MD. Its 130 mm mirror gathers far more light than the Seestar's 50 mm lens, so faint clusters, nebulae and galaxies are visible to the eye. The Seestar has no eyepiece; you view images on a screen.
Which is easier to carry and set up?
The Seestar. It weighs 2.5 kg, comes in a carrying case and runs on an internal battery. The AstroMaster weighs 17 lb plus tripod and counterweights, and setup includes balancing and polar alignment.
Is the AstroMaster worth stepping up to over the Seestar?
Only if visual observing is your goal. The larger aperture and eyepiece views are a real step up for seeing faint objects. For imaging, the Seestar is the more capable tool despite the smaller aperture.
Which lasts longer?
The AstroMaster has fewer failure points: glass, a mirror and a mechanical mount. The Seestar depends on electronics, a battery and app support, which age faster, though its sealed optics need no collimation.
Can the AstroMaster do astrophotography?
Basic only. With a smartphone adapter and the motor drive it can capture the Moon and bright planets. Deep-sky imaging needs guiding and a proper camera, which the mount does not really support.

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Beginners, Advanced
—
Typical UsersAdults—
Aperture—130mm
Focal length—650mm
Mount—CG-3 equatorial
Width (")—33.0
Weight (oz)—272.0
Waterproofness—No
Battery—Yes (included)
Height (")—63.0
Motorized—Yes
Depth (")—33.0
Features—Tripod Attachment
Magnification (max)—65.0
Product Type—Telescope
Maximum Magnification—307x
Minimum Magnification—19x
Recording Capability—Yes (with smartphone adapter)
Focal Ratio—f/5