Two models, the numbers decide

Sky-Watcher Evostar 72 EDX or Svbony SV503 80ED?

Sky-Watcher Evostar 72 EDX — 72 mm, €449. Svbony SV503 80ED — 80 mm, €430. The same method as everywhere on this site: the numbers first, the verdict from them.

Same family (72–80 mm ED refractor): what changes between these two is aperture, bulk and price — not character.

72–80 mm ED refractor

Sky-Watcher Evostar 72 EDX

Saturn at 70× in 72 mm — exit pupil 1.0 mm, Bortle 6 sky. Computed, not photographed.

€449seen 8 Oct 2026 at Astroshop

See it at Astroshoppaid linkAll the sellers

72–80 mm ED refractor

Svbony SV503 80ED

Saturn at 80× in 80 mm — exit pupil 1.0 mm, Bortle 6 sky. Computed, not photographed.

€430indicative, seen 17 Aug 2026

All the sellers

Side by side

	Sky-Watcher Evostar 72 EDX	Svbony SV503 80ED
Aperture	72 mm	80 mm
Focal ratio	420 mm · f/5.8	560 mm · f/7.0
Typical weight	2 kg	2.9 kg
Setup time	6 minutes	6 minutes
Learning curve	2 out of 5	2 out of 5
Useful magnification	≤ 144×	≤ 160×
Resolution (Dawes)	1.6″	1.4″
Observed price	€449seen 8 Oct 2026 at Astroshop	€430indicative, seen 17 Aug 2026
Where to buy	See it at Astroshop paid link	All the sellers

Choose the Sky-Watcher Evostar 72 EDX if…

The numbers give it few arguments — the other wins this one.

Full page on the Evostar 72 EDX →

Where to buy

Astroshoppaid link€449seen 8 Oct 2026→ships DE, FR, EU

Also search at First Light Optics · Optique Unterlinden · Pierro Astro · Teleskop-Express (searches; neither price nor stock checked)

1 of these 5 links earn us a commission, marked above. Sorted by price, never by what pays. How this site is funded.

Choose the Svbony SV503 80ED if…

budget decides: €19 less
you want the most sky: 1.2× the light

Full page on the SV503 80ED →

Where to buy

Search at First Light Optics · Optique Unterlinden · Pierro Astro · Teleskop-Express (searches; neither price nor stock checked)

None of these links earn us anything.

The same sky, through both

These circles are simulations, computed from the aperture, the magnification and the sky — indicative, not exact. A real night also depends on the turbulence, your eyes and your experience. Closer to the truth than the photo on the box; still not a promise.

The Moon

Evostar 72 EDX · Detailed

SV503 80ED · Detailed

Saturn

Evostar 72 EDX · Recognisable

SV503 80ED · Recognisable

The Orion Nebula

Evostar 72 EDX · Detectable

SV503 80ED · Recognisable

The Andromeda Galaxy

Evostar 72 EDX · Detectable

SV503 80ED · Recognisable

Photo credits

These thumbnails are built from real photographs, scaled and darkened by the same arithmetic as the large view.

The Moon: NASA Scientific Visualization Studio / LRO, public domain
The Orion Nebula: NASA, ESA, M. Robberto (heic0601a), CC BY 4.0
The Andromeda Galaxy: Adam Evans, Wikimedia Commons, CC BY 2.0