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Gskyer 90 Explore vs Celestron StarSense Explorer DX 130AZ Reflector Telescope

Buy the Celestron StarSense Explorer DX 130AZ for deep-sky viewing and for finding objects fast. Its 130mm mirror gathers far more light than the Gskyer's 90mm lens, and the phone dock shows arrows to each target. Buy the Gskyer 90 Explore if you want a light refractor for the Moon and planets with a phone adapter and Bluetooth remote in the box. On November 3, 2026 the Celestron is $128.99 at telescopes.us.com and the Gskyer is $269.99 at Walmart, so the larger scope is also the cheaper one.

Today the Celestron StarSense Explorer DX 130AZ Reflector Telescope costs $141.00 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 simple refractor that never needs collimation, with a smartphone adapter and Bluetooth shutter included for Moon and planet photos.

Pros
  • No collimation, so it stays aligned out of the box
  • Three eyepieces plus a 3x Barlow give a wide magnification range
  • Phone adapter and Bluetooth remote make lunar photos easy
  • Light and quick to carry outside
Cons
  • 90mm aperture shows faint galaxies and nebulae poorly
  • Manual star hopping with a small finderscope takes practice
  • At $269.99 it costs more than the larger Celestron
  • The 5mm eyepiece with the Barlow pushes past useful magnification on most nights
Celestron
Celestron StarSense Explorer DX 130AZ Reflector Telescope

Celestron StarSense Explorer DX 130AZ Reflector Telescope

4.8· 12 ratings
$128.99at telescopes.us.comObserved at 12:17 PM
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Choose the Celestron StarSense Explorer DX 130AZ if you want the most light and the easiest object finding for the lowest price.

Pros
  • 130mm mirror shows clusters, nebulae and galaxies far brighter
  • StarSense app points you to targets, so less time is lost searching
  • Wide f/5 field frames large objects like the Pleiades
  • $128.99 at telescopes.us.com is the lower price of the two
Cons
  • Reflector mirrors need occasional collimation
  • 18 lb kit is heavier to move than a small refractor
  • Only two eyepieces, no Barlow
  • Phone dock aims the scope but does not take eyepiece photos

What separates them

Gskyer 90 ExploreCelestron StarSense Explorer DX 130AZ Reflector Telescope
Optical design90mm refractor, sealed tube130mm Newtonian reflector with parabolic mirror
Light gathering90mm aperture130mm aperture, about twice the light-gathering area
Focal length and ratio600mm at f/6.7650mm at f/5, wider field
Finding objects6x30 finderscope, star hopping by handStarSense phone dock with app arrows to targets
MaintenanceNo collimation neededMirror collimation check needed now and then
Included eyepieces5mm, 10mm, 25mm plus 3x Barlow25mm (26x) and 10mm (65x)
Phone photographySmartphone adapter and Bluetooth remote includedPhone dock is for aiming, not imaging
Weight and setupLight refractor on adjustable tripod, 31.5" to 49"18 lb kit, preassembled mount and tripod

Price history

  • Gskyer 90 Explore: lowest $180.00 on Nov 3 at eBay.
  • Celestron StarSense Explorer DX 130AZ Reflector Telescope: lowest $128.99 on Nov 3 at telescopes.us.com.

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 →

Celestron StarSense Explorer DX 130AZ Reflector Telescope

  • telescopes.us.comNew

    In stock

    $128.99Observed at 12:17 PM
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  • carnegiemuseums.orgNew

    In stock

    $479.95Observed at 12:17 PM
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  • B&H Photo-Video-AudioNew

    In stock

    $499.95Free shippingObserved at 12:17 PM
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  • High Point ScientificNew

    In stock

    $449.95+ $51.83 shippingObserved at 12:17 PM
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Also available at

  • Mile High AstronomyCheck price at Mile High Astronomy
  • All-Star Telescope CanadaCheck price at All-Star Telescope Canada
  • Telescopes CanadaCheck price at Telescopes Canada
All 7 stores and price history →

Specs compared

SpecGskyer 90 ExploreCelestron StarSense Explorer DX 130AZ Reflector Telescope
Focal Length600 mm650mm (25.59")
Focal Ratiof/6.7f/5
Aperture90 mm130mm (5.11")
Mount TypeAZ MountManual Alt-Azimuth
Product TypeTelescope—
Maximum Magnification360x—
Performance BrightnessBrighter images—
Objective Diameter90 mm—
Optical TypeTelescope—
Optical Diameter90 mm (aperture)—
DigitalNo—
Field Of ViewWide-field—
Show all 31 specsShow fewer specs
SpecGskyer 90 ExploreCelestron StarSense Explorer DX 130AZ Reflector Telescope
Barlow LensYes (3x Barlow lens)—
FinderscopeYes (6 imes30)—
Camera AdaptableYes (Smartphone Adapter)—
Supported AccessoriesSmartphone Adapter, Bluetooth Remote—
Connectivity InterfaceBluetooth—
USBNo—
Connectivity TypeWireless (Bluetooth Remote)—
Wireless DisplayNo—
Focus TypeManual Focus—

Questions and answers

Which is better for seeing galaxies and nebulae?
The Celestron. Its 130mm mirror collects roughly twice the light of the Gskyer's 90mm lens, so faint objects show more detail. The Gskyer is better suited to the Moon, planets and bright star clusters.
Is the Celestron really cheaper?
Yes. On November 3, 2026 the Celestron was $128.99 at telescopes.us.com and the Gskyer was $269.99 at Walmart. The Celestron gives more aperture for less money.
Which is easier for a complete beginner?
The Celestron, because the StarSense app shows arrows to each object instead of making you hunt with a finderscope. The Gskyer needs no collimation, but finding faint targets by hand is harder.
Can I take photos with either one?
The Gskyer includes a smartphone adapter and Bluetooth remote for eyepiece photos of the Moon and planets. The Celestron's phone dock is for aiming only, so imaging needs extra gear.
Which needs more upkeep?
The Celestron. Newtonian mirrors need an occasional collimation check, which takes a few minutes. The Gskyer refractor holds alignment and needs no adjustment.
Which is easier to carry outside?
The Gskyer. It is a light refractor on an adjustable tripod. The Celestron kit weighs 18 lb, though the mount and tripod come preassembled.

More comparisons

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Power Source
Manual Operation
—
Body DimensionsAdjustable tripod height from 31.5" to 49"—
Optical design—Newtonian Reflector | Parabolic Primary Mirror
Highest useful magnification—307x
Lowest useful magnification—19x
Limiting stellar magnitude—13.1
Optical tube weight—8.8 lbs (3.99 kg)
Tripod weight—9.2 lbs (4.17 kg)
Total kit weight—18 lbs (8.16 kg)
Max height—Aluminum, 1244.6mm (49") max height