Two very different science-fiction starships share the name Prometheus. One is the X-303 Prometheus MKII from Stargate; the other is the Prometheus-class starship from Star Trek. If you are choosing a display model—or simply trying to identify the ship you remember—this guide explains the differences.
Quick comparison
| Feature | X-303 Prometheus MKII | Prometheus-Class Starship |
|---|---|---|
| Series | Stargate | Star Trek |
| Approximate model size | 45 cm / 17.7 inches | 46 cm / 18 inches |
| Display format | Fully coloured and assembled | Fully coloured and assembled |
| Available finish | Detailed finished display model | Full-colour or glow-in-the-dark |
| Best suited to | Stargate ship collections | Star Trek fleet displays |
The X-303 Prometheus MKII

The X-303 is the Prometheus associated with the Stargate universe. Its broad military silhouette, angular hull and recognisable bridge structure make it visually distinct from the smoother Star Trek design. The finished Printverse3D model measures about 45 cm (17.7 inches), so it works best as a substantial shelf, cabinet or desk centrepiece.
If your collection already includes Earth-built Stargate vessels, pair it with the F-302 Fighter Interceptor. You can also browse the complete Stargate model collection for gates, ships and display props from the same universe.
The Star Trek Prometheus-Class starship

The Prometheus-Class is a Star Trek design with the cleaner lines and federation-style profile expected in a Starfleet display. At approximately 46 cm (18 inches), it has a similar physical presence to the X-303 while remaining a completely different ship.
This model is offered in a full-colour finish and a glow-in-the-dark option. It fits naturally beside Enterprise, Voyager, Defiant and other ships in the Star Trek model collection.
Which Prometheus model should you choose?
The easiest decision is the universe you collect:
- Choose the X-303 Prometheus MKII if you collect Stargate ships, Earth battlecruisers or military-style spacecraft.
- Choose the Prometheus-Class starship if your display focuses on Star Trek, Starfleet vessels or Federation ship designs.
- Choose both if you enjoy comparing similarly named ships across science-fiction franchises. Their almost equal length makes them especially interesting side by side.
Display space and model care
Both models are close to 18 inches long, so measure your shelf before ordering. Leave extra clearance around the stand and the widest points of the hull. A closed cabinet helps reduce dust, while indirect lighting shows the surface details without placing the model in prolonged direct sunlight or excessive heat.
Because these are finished, assembled 3D-printed display pieces, lift them by the strongest central section rather than thin antennas, wings or other fine details. Use a soft brush or low-pressure air to remove dust.
Quick answer
The X-303 Prometheus MKII is the Stargate ship; the Prometheus-Class is the Star Trek ship. They are similar in display size, but their universes, hull designs and available finishes are different.
Explore all sci-fi series to compare more finished 3D-printed ships and props.