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Deal.ai › Celestron › Kids Telescopes

Celestron

Celestron NexStar 4 SE Maksutov-Cassegrain Computerized Telescope with SkyPortal WiFi Module

Celestron NexStar 4 SE Maksutov-Cassegrain Computerized Telescope with SkyPortal WiFi Module

Best price now

$576.25at GreentoeChecked 1 h ago

Compared across 16 stores. Prices are checked against each store and labelled with when.

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Price facts

Lowest price today: $576.25 at Greentoe (checked Nov 11, 2026).
Checked at 16 stores.

Our take on the Celestron NexStar 4 SE Maksutov-Cassegrain Computerized Telescope with SkyPortal WiFi Module

The NexStar 4SE is a computerized 102mm Maksutov-Cassegrain on a single fork-arm altazimuth mount. Its long 1325mm focal length (f/13) gives sharp, high-contrast views of the Moon, planets and double stars, and the included SkyPortal WiFi module lets a phone or tablet run the scope through Celestron's app. The sealed Maksutov tube holds collimation well and packs small, so it travels easily. It is a compact, app-friendly first serious scope, but its narrow field and small aperture limit deep-sky work next to 6-inch and 8-inch rivals.

Best forBeginners who want a computerized, app-controlled scopeLunar, planetary and double-star viewingSmall-space or balcony stargazingTravelers who want a compact, sealed tube

Pros

Sharp, high-contrast Maksutov optics with StarBright XLT coatings
SkyAlign alignment takes minutes with three bright objects
SkyPortal WiFi module included for phone and tablet control
GoTo database of nearly 40,000 objects
Compact, sealed tube that holds collimation
Internal flip mirror for straight-through or 90-degree viewing

Cons

Narrow 1-degree field of view makes finding objects harder
102mm aperture shows less deep-sky detail than 6-inch or 8-inch scopes
Runs on 8 AA batteries that are not included
Fork-arm mount and steel tripod together are fairly heavy
f/13 optics are dim for faint nebulae and galaxies

Celestron NexStar 4 SE Maksutov-Cassegrain Computerized Telescope with SkyPortal WiFi Module prices at every store

GreentoeNew
In stock
$576.25Free shippingChecked 1 h ago
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TargetNew
In stock
$649.00Free shippingChecked 1 h ago
Visit Target
Celestron.comNew
In stock
$649.00Free shippingChecked 1 h ago
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WalmartNew
In stock
$649.00Free shippingChecked 1 h ago
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Best BuyNew
In stock
$649.00Free shippingChecked 1 h ago
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AmazonNew
Availability unknown
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$649.00Free shippingChecked 1 h ago
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High Point ScientificNew
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$649.00Checked 1 h ago
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AdoramaNew
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$649.00Checked 1 h ago
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AstronomicsNew
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$649.00Checked 1 h ago
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Agena AstroNew
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$649.00Checked 1 h ago
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Mile High AstronomyNew
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$649.00Checked 1 h ago
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Availability unknownSold by focuscamera
$649.00Checked 1 h ago
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Hunt's Photo & VideoNew
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$749.00Checked 1 h ago
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$749.96Checked 1 h ago
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B&H Photo-Video-AudioNew
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$792.09Checked 1 h ago
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Fisher ScientificNew
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$1,255.00Checked 1 h ago
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Celestron NexStar 4 SE Maksutov-Cassegrain Computerized Telescope with SkyPortal WiFi Module price history

Lowest price we've seen: $576.25 on Nov 11 at Greentoe. Tracked across 16 stores since Nov 11.

What reviewers say

Owners of the NexStar SE line generally praise the sharp optics, quick SkyAlign setup and reliable GoTo tracking. The 4SE in particular draws mixed notes on its narrow field and modest aperture for deep-sky targets, and on battery drain.

What people mention

OpticsPraisedOwners report sharp, contrasty views of the Moon, planets and double stars.
SetupPraisedSkyAlign alignment is described as quick and beginner-friendly.
GoTo accuracyPraisedThe mount reliably slews to and tracks chosen targets.
Field of viewCriticisedThe 1-degree field makes framing and finding objects tight.
ApertureMixedFine for planets, but faint deep-sky objects are dim at 4 inches.
BatteryCriticisedAA batteries drain quickly; owners often switch to an external power supply.

About the Celestron NexStar 4 SE Maksutov-Cassegrain Computerized Telescope with SkyPortal WiFi Module

The NexStar 4 SE is a computerized Maksutov-Cassegrain telescope with a 4-inch (102 mm) aperture.

Optical design: Maksutov-Cassegrain
Aperture: 102 mm (4.02 in)
Focal length: 1325 mm (52 in), f/13
Finderscope: StarPointer
Mount: Single fork arm altazimuth
Tripod: Steel, with built-in wedge
Power: 8 AA batteries (not included)
Tube length: 13.5 in (343 mm)
Weight: Kit 11 lbs (4.99 kg); tripod 10 lbs (4.54 kg)

Specifications

color: BlackSource
Waterproofness: NoSource
Magnification (min): 10.0Source
Optical Design: Maksutov-Cassegrain
Aperture (mm): 102 mm (4.02 in)

Questions and answers

Is the NexStar 4SE good for a beginner?: Yes. SkyAlign aligns the scope in minutes and the hand control or SkyPortal app handles GoTo, so a newcomer can be observing quickly.
Can I use it without a phone?: Yes. The computerized hand control runs the scope on its own; the SkyPortal WiFi module adds wireless app control.
What can I see with a 4-inch Maksutov?: Sharp views of the Moon, planets, double stars and brighter clusters and nebulae. Faint galaxies and nebulae are dim at this aperture.
Does it need batteries?: It runs on 8 AA batteries, which are not included. Many owners use an external 12V supply instead.
How does it compare with the NexStar 6SE or 8SE?: The 6SE and 8SE gather much more light for deep-sky objects but are larger and heavier. The 4SE is the most compact and portable of the line.
Is the optical tube sealed?: Yes, the Maksutov-Cassegrain design is closed, which keeps dust off the optics and holds collimation well.
Where is the Celestron NexStar 4 SE Maksutov-Cassegrain Computerized Telescope with SkyPortal WiFi Module cheapest?: At Greentoe, for $576.25, as of our latest check.
Where can I buy the Celestron NexStar 4 SE Maksutov-Cassegrain Computerized Telescope with SkyPortal WiFi Module?: 16 stores we checked sell it, including Greentoe, Amazon, Target, Celestron.com, Walmart.

Stores we've priced the Celestron NexStar 4 SE Maksutov-Cassegrain Computerized Telescope with SkyPortal WiFi Module at

Adorama deals and prices
B&H Photo-Video-Audio deals and prices
Best Buy deals and prices
Greentoe deals and prices
QVC deals and prices

Focal Length

1325 mm (52 in)

Focal Ratio

13

Magnification of Eyepiece 1

53 x

Finderscope

StarPointer

Star Diagonal

Internal Flip mirror for straight thru or 90 viewing angle

Mount Type

Single Fork Arm Altazimuth

Tripod

Steel with built-in wedge

Power Requirements

8-AA batteries (not included)

Highest Useful Magnification

241 x

Lowest Useful Magnification

15 x

Limiting Stellar Magnitude

12.5

Resolution (Rayleigh)

1.37 arc seconds

Resolution (Dawes)

1.14 arc seconds

Light Gathering Power

212 x

Apparent Field of View

1 degree

Secondary Mirror Obstruction

1.38 in (35 mm)

Secondary Mirror Obstruction by Diameter

34%

Secondary Mirror Obstruction by Area

12%

Optical Coatings

StarBright XLT

Target deals and prices

Walmart deals and prices

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