A long focal length folded into a short tube · review
Celestron NexStar Evolution 6 (12090) review
Celestron's NexStar Evolution 6: a 6-inch Schmidt-Cassegrain on a single-arm GoTo mount with integrated Wi-Fi, a built-in lithium battery rated for 10 hours, brass worm gears and 40 mm and 13 mm eyepieces.
The Evolution’s headline feature is a built-in lithium-ion phosphate battery that Celestron rates for up to 10 hours. There is no external power tank and no cable to trip over, and a USB port charges a phone. When the battery runs low, the telescope switches to a power-saving mode.
Wi-Fi in place of a hand control
The mount makes its own Wi-Fi network. The SkyPortal app on a phone or tablet aligns it and slews it to any of 120,000+ objects. A NexStar+ hand control is still in the box.
Three hundred and fifty-four times
Celestron publishes a highest useful magnification of 354x and supplies 40 mm and 13 mm Plössls for 38x and 115x. The focal length itself is not in the listing.
The mechanics
Brass worm gears, improved motors, manual clutches on both axes so it can be pointed by hand when powered off, a stainless-steel tripod with leg etchings for leveling, and two eyepiece trays, one with a red LED.
Against the 6SE
The optics are the same six inches as the NexStar 6SE. On November 7, 2026 the Evolution cost about $580 more; that buys the battery, the Wi-Fi, the brass gears and a second eyepiece.
Photography
Celestron says the Orion Nebula can be photographed with a DSLR attached directly, and points to its separate Pro HD Wedge for longer exposures.
Price and availability
On November 7, 2026, Amazon.com listed it at about $1,618 from a third-party seller.
Figures as Keepa reported them on the day this page was last updated. Stock and pricing shift without warning.
Prices quoted in this text were read on November 7, 2026. The live price is at the top of the page.
Its two nearest scopes on price
Same aisle, closest price — what the same spend else shows.
Not published separately · Amazon's item data gives 16.3 kg (36 lb) for the shipment
Mount supplied
Single-arm alt-azimuth GoTo mount with brass worm gears · integrated Wi-Fi with the SkyPortal app (120,000+ objects) · NexStar+ hand control included · built-in lithium-ion phosphate battery, up to 10 hours · manual clutches on both axes · stainless steel tripod · StarPointer finder · 1.25 in diagonal
Amazon reference
B00K6E1S3I
EAN
0050234120906
What observers ask about this one
Is the built-in battery worth it?
For observers who hate power cables, yes. Celestron rates it at up to 10 hours, says the telescope drops to a power-saving mode when it runs low, and adds a USB port to charge a phone.
What does 354x highest useful magnification mean?
It is Celestron's figure for the most magnification the 6-inch aperture can use, close to the usual rule of about 60x per inch. On most nights the air allows less; 150x to 250x is the practical planetary range.
Do I need the hand control?
No. The telescope makes its own Wi-Fi network and is controlled from the SkyPortal app; the NexStar+ hand control is included for those who prefer buttons.
The price on Amazon.com
This model is listed on Amazon.com, at ≈ $1,618 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.
Details checked on November 7, 2026.
This one and its buyer, among astronomy instruments
A six-inch that runs all night on its own battery and is driven from a phone
Sources
Specifications: the manufacturer sheet for telescopes and observing optics and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
102 mm (4 in) Maksutov-Cassegrain · 1325 mm at f/13 · GoTo fork with built-in wedge · 21 lb with tripod
Celestron's NexStar 4SE: a 4-inch Maksutov-Cassegrain with StarBright XLT coatings on a computerized single-arm GoTo mount whose tripod has a built-in wedge, 21 lb with tripod.
Best for: A first computerized telescope for the Moon and planets that can also take short-exposure photos
Celestron's NexStar 6SE: a 6-inch Schmidt-Cassegrain on a computerized single-arm GoTo mount with the NexStar+ hand control, a 40,000-object database and SkyAlign.
Best for: Six inches of aperture on a mount that finds things, for an observer who will look rather than photograph