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Detailed side-by-side comparison of two Oceania Cruises cruise ships
| Specification | Allura | Sirena |
|---|---|---|
| Cruise Line | Oceania Cruises | Oceania Cruises |
| Maiden Voyage | 2025 | 2016 |
| Year Refurbished | N/A | N/A |
| Adults Only | No | No |
| Specification | Allura | Sirena |
|---|---|---|
| Passenger Capacity | 1,200 | 684 |
| Crew Size | 800 | 400 |
| Guest-to-Crew Ratio | 1.50 | 1.71 |
| Specification | Allura | Sirena |
|---|---|---|
| Gross Tonnage | 67,000 | 30,277 |
| Length | 791 ft | 594 ft |
| Width | 89 ft | 83 ft |
| Ship Size Category | Medium | Small |
| Number of Decks | 15 | 11 |
| Specification | Allura | Sirena |
|---|---|---|
| Overall Cruiseable Rating | 9.0 / 10 | 9.0 / 10 |
| Roominess Score | N/A | N/A |
| Advised For | Cultural, staterooms, romantic, adults, spa and fitness, dining | Cultural, staterooms, romantic, adults, spa and fitness, dining |
