In short, Icon Class is Royal Caribbean’s newest and biggest design, and Oasis Class is the proven mega-ship formula it grew out of. As of October 2026 there are three Icon Class ships at sea: Icon of the Seas, Star of the Seas and Legend of the Seas. The Oasis Class has six: Oasis, Allure, Harmony, Symphony, Wonder and Utopia of the Seas. Icon ships put more weight on family zones, pools and water play, and on newer cabin designs, and they usually cost more. Oasis ships give you much of the same big-ship fun, often for noticeably less money.
Which Ships Are in Each Class?
Icon Class
- Icon of the Seas began sailing in January 2024 and runs seven-night Caribbean cruises from Miami.
- Star of the Seas joined the fleet in August 2025 and sails seven-night Caribbean itineraries from Port Canaveral.
- Legend of the Seas was handed over at Meyer Turku in Finland in June 2026 and made its maiden voyage in the Western Mediterranean on July 4, 2026. Royal Caribbean says it moves to Fort Lauderdale in November 2026 for six- and eight-night Caribbean cruises.
- Hero of the Seas has been floated out and is due in 2027. Three more Icon ships are on order for 2028, 2029 and 2030. See our report on the first block laid for the fifth Icon Class ship.
Oasis Class
- Oasis of the Seas (2009) and Allure of the Seas (2010) are the originals. Both have since been refurbished, and Allure got its upgrade in 2025.
- Harmony of the Seas (2016) and Symphony of the Seas (2018) added newer slides and family features.
- Wonder of the Seas (2022) and Utopia of the Seas (2024) are the newest. Utopia is the first Oasis ship to run on LNG, and it focuses on short Bahamas getaways from Port Canaveral.
- A seventh Oasis Class ship, not yet named, is being built at Chantiers de l’Atlantique in France and is expected in 2028.
Size and Guest Numbers
On paper the gap is smaller than you might expect. The Icon ships measure about 248,600 gross tons and carry around 5,610 guests at double occupancy, or up to about 7,600 when every bed is full. The Oasis ships range from roughly 226,000 gross tons for the oldest pair to about 236,000 for Wonder and Utopia. They carry around 5,400 to 5,700 guests at double occupancy.
The real difference is how the space is used. Oasis ships are split down the middle into two open-air “canyons,” Central Park and the Boardwalk, with cabins facing inward on both sides. Icon ships keep Central Park and the Royal Promenade but move much of the action to big new areas on the top decks and at the bow. They also bring in more glass and natural light.
Neighborhoods Compared
Both classes divide the ship into themed “neighborhoods,” which makes these huge vessels easier to find your way around.
- Oasis Class: Central Park, the Boardwalk, the Royal Promenade, the Pool and Sports Zone, Entertainment Place, the Youth Zone and the Vitality Spa. Wonder and Utopia also have a dedicated Suite Neighborhood.
- Icon Class: eight neighborhoods. Several are new to the line: Surfside for families with young children, Chill Island for pools, Thrill Island for slides and adventure, the AquaDome, the adults-only Hideaway and the Suite Neighborhood. Central Park and the Royal Promenade carry over from Oasis.
Surfside is the stand-out. It puts a kids’ pool, a carousel, an arcade, casual food and family cabins in one place, so parents of toddlers don’t have to walk the length of the ship all day.

Pools, Slides and Thrills
This is where Icon Class pulls clearly ahead. Each ship has seven pools, including the Hideaway’s adults-only infinity-edge pool hanging over the stern. The Category 6 waterpark has six slides, among them a drop slide and family raft slides. Thrill Island also has Crown’s Edge, a ropes course and skywalk that ends with a swing out over the side of the ship.
Oasis ships are far from dull. You’ll find a FlowRider surf simulator, zip line, mini golf, climbing walls and the Perfect Storm waterslides. Newer ships, and the older ones that have been upgraded, also have the Ultimate Abyss dry slide that drops several decks. Wonder adds an extra pool and an enclosed adults-only area. Pool-deck space per guest is tighter, though, and on busy sea days the sun loungers fill up quickly.
Cabins: Infinite Balconies and Family Suites
Icon Class brought in the Infinite Balcony, a cabin where the wall of glass lowers at the touch of a button so the “balcony” becomes part of the room. Some people love the extra indoor space, while others miss a traditional outdoor deck with furniture. Icon ships also have more family-sized options. Surfside has Family Infinite Balcony cabins with a separate kids’ nook, and the three-level Ultimate Family Townhouse comes with its own slide and a small cinema.
Oasis ships offer a wider mix of more traditional cabins, including the unusual Central Park and Boardwalk balconies that overlook the ship’s interior rather than the sea. Symphony and Wonder have the Ultimate Family Suite, which has its own slide and games room. On every Oasis ship, the Royal Loft Suites and Star Class suites cover the very top end.
Dining and Entertainment
Dining works much the same way across both classes. You get an included main dining room, Windjammer buffet and casual venues, plus speciality restaurants such as Chops Grille, Izumi and 150 Central Park, depending on the ship. Icon ships add many more choices, with more than 40 places to eat and drink, including the AquaDome Market food hall and the two-level Coastal Kitchen for suite guests. Utopia and Legend both have the Royal Railway, a train-themed dining experience.
For entertainment, both classes have a Broadway-style theatre, an ice show and an AquaTheater for high-diving shows. On Oasis ships the AquaTheater sits outdoors at the stern beside the Boardwalk. On Icon ships it is inside the glass AquaDome, so shows are less exposed to wind and rain. Legend of the Seas introduced new productions, including Charlie and the Chocolate Factory. Programmes change, so check the ship you’re looking at.

Icon Class vs Oasis Class at a Glance
| Feature | Icon Class | Oasis Class |
|---|---|---|
| Ships in service (Oct 2026) | 3 (Icon, Star, Legend) | 6 (Oasis, Allure, Harmony, Symphony, Wonder, Utopia) |
| On order | Hero (2027) plus three more to 2030 | One unnamed ship (2028) |
| Gross tonnage | About 248,600 | About 226,000 to 236,000 |
| Guests (double occupancy) | About 5,610 | About 5,400 to 5,700 |
| Pools | Seven, incl. adults-only infinity pool | Fewer, varies by ship |
| Waterslides | Six in Category 6 waterpark | Perfect Storm slides, varies by ship |
| Signature family area | Surfside | Boardwalk and Splashaway Bay |
| Standout cabins | Infinite Balcony, Ultimate Family Townhouse | Central Park and Boardwalk balconies, Ultimate Family Suite (select ships) |
| AquaTheater | Indoors in the AquaDome | Outdoors at the stern |
| Fuel | LNG | Conventional fuel, except LNG on Utopia |
| Typical price | Higher | Usually lower |
How Much More Does Icon Class Cost?
Expect to pay a premium for Icon Class, especially in school holidays. At the time of writing, seven-night Icon Class Caribbean cruises often start somewhere around $1,000 to $2,000 per person for an inside cabin. Balcony cabins on popular dates are frequently higher. Comparable Oasis Class sailings, particularly on Oasis, Allure or Harmony, can cost hundreds of dollars less per person. Utopia and Wonder also sell three- and four-night Bahamas trips at much lower entry fares. These are rough guides only: fares move constantly and exclude taxes, fees and gratuities, so compare exact dates on Royal Caribbean’s website or with a travel agent. Our guide to cruise deals for 2027 explains when the best offers tend to appear.
Which Class Should You Choose?
Pick Icon Class if…
- You’re travelling with young children and want Surfside’s all-in-one family zone.
- Pools and waterslides are high on your list.
- You want the newest design and cabin types, and you’re happy to pay for them.
Pick Oasis Class if…
- You want the mega-ship experience on a tighter budget.
- You’d like more choice of homeports, itinerary lengths and short getaways, since there are twice as many ships.
- You prefer a traditional balcony or like the idea of a Central Park view.
- You’re travelling as adults and care more about shows, bars and dining than water parks.
For a historical angle on Oasis-class size, see how Utopia of the Seas compares with the Titanic.
For a ship-by-ship decision rather than a class overview, see Utopia of the Seas vs Icon of the Seas.
Both classes use the Sea, Sky and Star suite tiers, and our guide to Royal Caribbean suite perks versus The Key explains what each tier really includes.
FAQs
Is Icon of the Seas part of the Oasis Class?
No. Icon of the Seas was the first ship of the separate Icon Class. It borrows ideas such as Central Park and the Royal Promenade from Oasis Class, but its layout, top decks and cabin designs are new.
Is Legend of the Seas sailing yet?
Yes. Legend of the Seas was delivered in June 2026 and began cruising in the Mediterranean in July 2026. Royal Caribbean plans Caribbean sailings from Fort Lauderdale from November 2026.
Which is the newest Oasis Class ship?
Utopia of the Seas, which entered service in July 2024. A seventh Oasis Class ship is under construction for 2028.
Are Oasis Class ships much smaller than Icon Class?
Not dramatically. Icon ships are roughly 5 to 10 percent larger by tonnage and carry a similar number of guests at double occupancy. The bigger difference is how the space is laid out and the extra pools and family areas on Icon ships.






































