How our Bliss Filters work
Detailed side-by-side comparison of Royal Caribbean and Oceania Cruises cruise ships
| Specification | Harmony of the Seas | Sirena |
|---|---|---|
| Cruise Line | Royal Caribbean | Oceania Cruises |
| Maiden Voyage | 2016 | 2016 |
| Year Refurbished | N/A | N/A |
| Adults Only | No | No |
| Specification | Harmony of the Seas | Sirena |
|---|---|---|
| Passenger Capacity | 5,479 | 684 |
| Crew Size | 2,100 | 400 |
| Guest-to-Crew Ratio | 2.61 | 1.71 |
| Specification | Harmony of the Seas | Sirena |
|---|---|---|
| Gross Tonnage | 227,000 | 30,277 |
| Length | 1,188 ft | 594 ft |
| Width | 215 ft | 83 ft |
| Ship Size Category | Mega | Small |
| Number of Decks | 18 | 11 |
| Specification | Harmony of the Seas | Sirena |
|---|---|---|
| Overall Cruiseable Rating | 9.0 / 10 | 9.0 / 10 |
| Roominess Score | N/A | N/A |
| Advised For | Party, families, entertainment | Cultural, staterooms, romantic, adults, spa and fitness, dining |
