Harmony of the Seas will span 16 guest decks, encompass 227,000 gross registered tons, carry 5,497 guests at double occupancy, and feature 2,747 staterooms.

The 5,479-passenger Harmony of the Seas benefits from Quantum-class amenities such as a Bionic Bar on its Promenade and Wow wrist bands instead of key cards for cabin access and purchases.