Sig Sauer
Sig Sauer Romeo-X Pro
$469.99
Released 2023
Best Red Dot Sights · head-to-head
Sig Sauer Romeo-X Pro vs Vortex Venom
A sourced, side-by-side comparison. Vortex Venom is cheaper at $369.99. Every spec and price links to its source.
Vortex Optics
Vortex Venom
$369.99Cheaper
Which is better: the Sig Sauer Romeo-X Pro or Vortex Venom?
On the specs we track, they're closely matched. The Vortex Venom is the cheaper at $369.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Sig Sauer Romeo-X Pro | Vortex Venom |
|---|---|---|
| US price | $469.99 | $369.99 |
| Brand | Sig Sauer | Vortex Optics |
| Released | 2023 | — |
| Sight type | open-reflex | open-reflex |
| Dot size moa | 2 | — |
| Reticle type | circle-dot | dot |
| Objective window (mm) | 24 | — |
| Battery type | CR1632 | CR1632 |
| Battery life hrs | 20000 | — |
| Brightness settings | 15 | 10 |
| Mount footprint | Leupold-DeltaPoint-Pro | Docter/Noblex |
| Weight grams | 42.5 | — |
| Length (mm) | 46.5 | — |
| Night vision compatible | Yes | No |
| Motion activation | Yes | No |
Sources — Sig Sauer Romeo-X Pro: thetacticalden.com (verified 2026-07-11). Vortex Venom: vortexoptics.com (verified 2026-07-11).
What's the difference between the Sig Sauer Romeo-X Pro and Vortex Venom?
Where the two actually differ on the specs we track (5 of 12). Matching specs are omitted.
- Reticle type: Sig Sauer Romeo-X Pro circle-dot vs Vortex Venom dot
- Brightness settings: Sig Sauer Romeo-X Pro 15 vs Vortex Venom 10
- Mount footprint: Sig Sauer Romeo-X Pro Leupold-DeltaPoint-Pro vs Vortex Venom Docter/Noblex
- Night vision compatible: Sig Sauer Romeo-X Pro true vs Vortex Venom false
- Motion activation: Sig Sauer Romeo-X Pro true vs Vortex Venom false