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Gskyer 90 Explore vs NexStar 130 SLT Computerized Telescope

Buy the Celestron NexStar 130 SLT if you want a computerized scope that finds objects for you and shows faint deep-sky targets. Buy the Gskyer 90 Explore if you want a light, simple refractor for the Moon and planets at a much lower price. The NexStar 130 SLT is $559.99 at Academy Sports + Outdoors as of November 3, 2026, and the Gskyer 90 Explore is $269.99 at Walmart as of November 3, 2026.

Today the Gskyer 90 Explore costs $290.00 less at its best price.

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Gskyer
Gskyer 90 Explore

Gskyer 90 Explore

4.9· 92 ratings
$269.99at WalmartObserved at 12:34 PM
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Choose the Gskyer 90 Explore if you want a grab-and-go refractor for lunar and planetary viewing, with a phone adapter and Bluetooth remote included, for about $290 less.

Pros
  • No collimation and no power, so it works the moment you set it up
  • Phone adapter and Bluetooth shutter make lunar photos easy
  • Three eyepieces and a 3x Barlow cover a wide magnification range
  • Costs $269.99 at Walmart as of November 3, 2026
Cons
  • 90mm aperture limits deep-sky views to the brightest objects
  • Manual mount means you re-aim constantly at high power
  • The 5mm eyepiece with the Barlow pushes past what the optics handle well
  • No GoTo, so finding faint targets takes practice
Celestron
NexStar 130 SLT Computerized Telescope

NexStar 130 SLT Computerized Telescope

4.8· 23 ratings
$559.99at Academy Sports + OutdoorsObserved at 12:17 PM
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Choose the NexStar 130 SLT if you want a motorized GoTo mount, a 130mm mirror that gathers far more light, and a database of objects it can slew to for you.

Pros
  • 130mm mirror shows galaxies, clusters and nebula detail a 90mm cannot
  • GoTo hand control slews to objects for you after alignment
  • Sturdy steel tripod and quick-release fork arm assemble without tools
  • Starry Night software with a 36,000-object database included
Cons
  • Costs $559.99 at Academy Sports + Outdoors as of November 3, 2026
  • Needs 8 AA batteries, not included, and eats them fast in cold weather
  • Reflector needs collimation and cool-down time
  • Heavier and slower to set up than a small refractor

What separates them

Gskyer 90 ExploreNexStar 130 SLT Computerized Telescope
Optical design90mm refractor, sealed tube, no collimation needed130mm Newtonian reflector, needs occasional collimation
Light gathering90mm aperture130mm aperture, about 2x the light grasp
MountManual alt-az, you push and track by handComputerized single-fork alt-az with GoTo hand control
Finding objects6x30 finderscope, star-hop by eyeRed-dot finder plus SkyAlign and a hand-control object database
Maximum magnification360x claimed with 3x Barlow307x highest useful
Included eyepieces5mm, 10mm, 25mm plus 3x BarlowTwo eyepieces, Barlow compatible
PowerNone needed, manual operation8xAA batteries, not included
Weight and setupLight refractor, tripod adjusts 31.5" to 49"8.8 lb tube plus fork mount and steel tripod, 30" to 50"

Price history

  • Gskyer 90 Explore: lowest $180.00 on Nov 3 at eBay.
  • NexStar 130 SLT Computerized Telescope: lowest $559.99 on Nov 3 at Academy Sports + Outdoors.

Prices at every store

Gskyer 90 Explore

  • eBayPre-owned

    In stock

    $180.00Free shippingObserved at 12:17 PM
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  • GskyerNew

    In stockReturn policy

    $269.99Verified
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  • WalmartNew

    In stockSold by Gskyer Optics

    $269.99Free shippingObserved at 12:34 PM
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  • eBayNew

    In stockSold by usa*stores

    $351.48Free shippingObserved at 12:17 PM
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Also available at

  • GskyerCheck price at Gskyer
All 3 stores and price history →

NexStar 130 SLT Computerized Telescope

  • Academy Sports + OutdoorsNew

    In stock

    $559.99Observed at 12:17 PM
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  • Pete's Home & KitchenNew

    In stockReturn policy

    $599.00Verified
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  • TelescopesPlusNew

    In stock

    $599.95Verified
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  • AdoramaNew

    In stock

    $599.99Free shippingObserved at 12:17 PM
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Also available at

  • David AstroCheck price at David Astro
  • Telescopes CanadaCheck price at Telescopes Canada
  • StarizonaCheck price at Starizona
All 9 stores and price history →

Specs compared

SpecGskyer 90 ExploreNexStar 130 SLT Computerized Telescope
Product TypeTelescopeTelescope
Maximum Magnification360x307x
Focal Length600 mm650mm (26")
Focal Ratiof/6.7f/5
Performance BrightnessBrighter imagesLight gathering power (compared to human eye): …
Aperture90 mm130mm (5.12")
Objective Diameter90 mm101-140 mm
Optical TypeTelescopeNewtonian Reflector
Optical Diameter90 mm (aperture)165.1 mm (6.5") (optical tube)
Field Of ViewWide-fieldWider (with 2'' eyepieces)
Barlow LensYes (3x Barlow lens)Compatible
FinderscopeYes (6 imes30)Yes
Show all 36 specsShow fewer specs
SpecGskyer 90 ExploreNexStar 130 SLT Computerized Telescope
Camera AdaptableYes (Smartphone Adapter)Yes
Mount TypeAZ MountComputerized Altitude-Azimuth Single Fork Arm
Supported AccessoriesSmartphone Adapter, Bluetooth RemoteStarSense AutoAlign, PowerTank Lithium, SkyPort…
Connectivity InterfaceBluetoothUSB
USBNoYes (Input on hand control)
Connectivity TypeWireless (Bluetooth Remote)Wired (USB)
DigitalNo—
Wireless DisplayNo—
Focus TypeManual Focus—

Questions and answers

Which is better for seeing planets?
The NexStar 130 SLT. Its 130mm mirror resolves more detail on Jupiter and Saturn, and the GoTo mount keeps the planet in view. The Gskyer 90 Explore shows the Moon and planets well but runs out of detail sooner.
Which is better for a total beginner?
The Gskyer 90 Explore is simpler: no alignment, no batteries, no collimation. The NexStar 130 SLT rewards a beginner who will learn SkyAlign, and its GoTo makes finding objects easier once set up.
Is the NexStar 130 SLT worth the extra money?
Yes if you want to see deep-sky objects and let the mount find them. At $559.99 versus $269.99 as of November 3, 2026, you pay about $290 more for twice the light grasp and full computerization.
Which shows more deep-sky objects?
The NexStar 130 SLT. Its 130mm aperture and limiting magnitude of 13.1 reach clusters and nebulas the 90mm Gskyer cannot, and GoTo helps you locate them.
Which is easier to carry outside?
The Gskyer 90 Explore. It is a light refractor on a compact tripod. The NexStar 130 SLT has an 8.8 lb tube plus a fork mount and steel tripod, so it takes two trips or more effort.
Can I take photos with either?
The Gskyer 90 Explore includes a smartphone adapter and Bluetooth remote for quick Moon shots. The NexStar 130 SLT is camera adaptable but needs a camera adapter and does not track in the same way as an equatorial mount.

More comparisons

  • NexStar 130 SLT Computerized Telescope vs Celestron StarSense Explorer DX 130AZ Reflector Telescope
  • Gskyer 90 Explore vs Celestron StarSense Explorer DX 130AZ Reflector Telescope

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Power SourceManual Operation—
Body DimensionsAdjustable tripod height from 31.5" to 49"—
Optical Design—Newtonian Reflector
Highest Useful Magnification—307x
Lowest Useful Magnification—19x
Limiting Stellar Magnitude—13.1
Optical Tube Length—635mm (25")
Optical Tube Weight—8.8 lbs (3.99 kg)
Height Adjustment Range—762mm - 1270mm (30" - 50")
Power Requirements—12 VDC - 8xAA Batteries (not included)
Magnification—72x (eyepiece 2)
Minimum Magnification—19x
Performance Resolution—1.07 arc seconds (Rayleigh)
Performance Contrast—Bump up the contrast
Computerized Functionality—Yes