How our Bliss Filters work
Detailed side-by-side comparison of Costa Cruises and Royal Caribbean cruise ships
| Specification | Costa Serena | Harmony of the Seas |
|---|---|---|
| Cruise Line | Costa Cruises | Royal Caribbean |
| Maiden Voyage | 2007 | 2016 |
| Year Refurbished | 2015 | N/A |
| Adults Only | No | No |
| Specification | Costa Serena | Harmony of the Seas |
|---|---|---|
| Passenger Capacity | 3,700 | 5,479 |
| Crew Size | 1,100 | 2,100 |
| Guest-to-Crew Ratio | 3.36 | 2.61 |
| Specification | Costa Serena | Harmony of the Seas |
|---|---|---|
| Gross Tonnage | 114,500 | 227,000 |
| Length | 951 ft | 1,188 ft |
| Width | 116 ft | 215 ft |
| Ship Size Category | Large | Mega |
| Number of Decks | 14 | 18 |
| Specification | Costa Serena | Harmony of the Seas |
|---|---|---|
| Overall Cruiseable Rating | 7.0 / 10 | 9.0 / 10 |
| Roominess Score | 30.2 | N/A |
| Advised For | N/A | Party, families, entertainment |
