Operator: Royal Caribbean International
Port of registry: Bahamas
Ordered: February 2006
Builder: STX Europe, Turku, Finland
Cost: USD 1.2 billion (EUR 800 million)
Yard number: 1364
Laid down: 2 December 2008
Launched: 20 November 2010
Maiden voyage: 1 December 2010
Identification: Call sign: C6XS8
IMO number: 9383948
MMSI number: 311020700
Class and type: Oasis-class cruise ship
Tonnage: 225,282 GT
242,999 NT
19,750 DWT
Displacement: approximately 100,000 tons
Length: 360 m (1,181 ft)
Beam: 47 m (154 ft) waterline
60.5 m (198 ft) extreme
Height: 72 m (236 ft) above water line
Draught: 9.3 m (31 ft)
Depth: 22.5 m (74 ft)
Decks: 16 passenger decks
Installed power: 3 × Wärtsilä 12V46D (3 × 13,860 kW/18,590 hp)
3 × Wärtsilä 16V46D (3 × 18,480 kW/24,780 hp)
Propulsion: 3 × 20 MW ABB Azipod, all azimuthing
4 × 5.5 MW Wärtsilä CT3500 bow thrusters
Speed: 22.6 kn (41.9 km/h; 26.0 mph)
Capacity: 5,400 passengers (lower berths)
6,300 passengers (all berths)
Notes: 50 mm (2.0 in) longer than Oasis

While the design length of the Allure of the Seas is the same as that of her sister, 360 metres (1,181 ft), she is actually some 50 millimetres (2 in) longer than the Oasis of the Seas. According to the shipyard, this is not intentional and such small differences in length may occur simply due to the temperature of the steel in a ship as big as this. The gross tonnage of the Allure is 225,282 and her displacement — the actual weight of the ship — is equal to that of the Oasis, which is estimated to be around 100,000 tons, about the same as that of an American Nimitz-class aircraft carrier.Her steel hull alone weighs roughly 54,000 tons. The ship features a two-deck dance hall, a theatre with 1,380 seats, and an ice skating rink.
In 2011, Taylor Swift became the first internationally recognized artist to use the amphitheatre onboard the Allure of the Seas as part of a world concert tour. It was used as the first date of her Speak Now World Tour. Competition winners took to the ship to attend the concert.