Royal Caribbean has five Quantum Class ships: Quantum, Anthem and Ovation of the Seas, plus the slightly larger Quantum Ultra pair, Spectrum and Odyssey of the Seas. Each measures about 169,000 gross tons and carries around 4,200 guests at double occupancy. They are known for indoor activity spaces and attractions such as North Star and RipCord by iFLY.
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In 2026-27 the five are spread across Australia, Los Angeles, New Jersey, Rome, Alaska and China, so the ship you can reach depends on the season. They are no longer identical either: Ovation lost its robot bartenders and several other venues in a 2026 refit. Here is what each ship offers now, and how the class compares with Oasis.
Quantum Class ships at a glance: size and 2026-27 deployment
Deployments below reflect published schedules as of November 2026. Royal Caribbean does change them, so check the sailing page before booking flights.
| Ship | Debut | Gross tons | Guests (double) | 2026-27 deployment |
|---|---|---|---|---|
| Quantum of the Seas | 2014 | 168,666 | 4,180 | Brisbane to April 2027; Alaska from Seattle, May to September 2027; Singapore from late October 2027 |
| Anthem of the Seas | 2015 | 168,666 | 4,180 | Sydney to April 2027; Alaska between Vancouver and Seward, May to September 2027; back to Sydney from October 2027 |
| Ovation of the Seas | 2016 | 168,666 | 4,180 (before 2026 cabin additions) | Los Angeles from autumn 2026, with California and Mexico sailings; moves to Brisbane in November 2027 |
| Spectrum of the Seas (Ultra) | 2019 | 169,379 | About 4,250 | Hong Kong to January 2027; Shanghai from late January to October 2027; Hong Kong again late 2027 |
| Odyssey of the Seas (Ultra) | 2021 | 169,300 | 4,284 | Cape Liberty, New Jersey to April 2027; Rome, May to October 2027; Cape Liberty from November 2027 |
At maximum occupancy, with third and fourth berths filled, these ships carry far more than the double figures suggest: Quantum and Anthem are listed at up to 4,905 guests and Odyssey at up to 5,498. For how these ships fit into the wider fleet, see our guide to Royal Caribbean ship classes.
Where do Quantum Class ships sail from?
For US cruisers, three ships matter most over the next year:
- East Coast: Odyssey of the Seas from Cape Liberty in Bayonne, New Jersey, on Bahamas and Caribbean sailings through April 2027 and again from November 2027.
- West Coast: Ovation of the Seas from Los Angeles. Royal Caribbean announced in August 2026 that Ovation would move to Brisbane from November 2027, and it cancelled Los Angeles sailings to make that happen. If you hold a late-2027 or 2028 booking, confirm it is still running.
- Alaska 2027: Quantum of the Seas sails round trip from Seattle, and Anthem of the Seas sails one way between Vancouver and Seward. Enclosed lounges and North Star views suit this kind of trip well.
Quantum and Anthem spend the southern summer in Australia, with New Zealand and South Pacific itineraries. Spectrum stays in Asia year round, mostly on Japan and South Korea sailings, and has never been based in North America. For Europe, Odyssey runs 7-night Greek Isles cruises from Rome from May to October 2027.
Signature features of Royal Caribbean Quantum Class ships
North Star
This glass capsule sits on a mechanical arm and lifts guests about 300 feet above sea level. Royal Caribbean cites a Guinness World Record for the tallest viewing deck on a cruise ship. It tends to be weather dependent, so book early in the cruise if you can, and check the Cruise Planner for the current reservation rules and any fee.
RipCord by iFLY
A skydiving simulator in a vertical wind tunnel. It is one of the attractions that sets this class apart. Age and weight limits and any charges can change, so check them before promising it to the kids.
SeaPlex
Royal Caribbean calls this the largest indoor activity space at sea. It hosts bumper cars, roller skating and basketball, and laser tag and an escape room are also part of the class’s indoor line-up. Odyssey adds Playmakers, a sports bar and arcade inside SeaPlex.
Indoor pool and Solarium
The covered pool is a major reason these ships work in Alaska. Quantum, Anthem, Ovation and Spectrum have a climate-controlled pool under a retractable roof. Odyssey is the exception, with two open-air resort-style pools. The adults-only Solarium, for guests 16 and over, sits under glass with hot tubs and its own pool. On Quantum of the Seas there is no Solarium Bar, unlike its sisters.
Two70
Two70 is a lounge by day and a show venue by night, at the back of the ship with windows covering 270 degrees. Six robotic screens move around the room during performances, and each ship runs its own production.
FlowRider
All five ships have this 40-foot surf simulator, which lets beginners try bodyboarding on a constant sheet of water. It is an outdoor attraction, so it depends on the weather more than SeaPlex does.
Bionic Bar
Robot bartenders mix drinks ordered on a tablet. This is where older guides are now wrong: the Bionic Bar remains on Quantum, Anthem, Spectrum and Odyssey, but Ovation replaced it in 2026 with the tiki-themed Pesky Parrot Bar.
Kids’ areas and Virtual Balconies
Adventure Ocean runs the kids’ club program across the class. For splash play, Quantum and Anthem have the H2O Zone, while Ovation, Spectrum and Odyssey have the larger Splashaway Bay, which was reworked and expanded on Ovation in 2026. Many interior cabins have Virtual Balconies: floor-to-ceiling screens that show a live view from outside.
Quantum vs Quantum Ultra class ships: what actually differs
Quantum Ultra ships are only slightly larger, and the shared attractions are the same. The practical differences are in dining, suites and layout. Ultra ships have one unified main dining room and a Teppanyaki restaurant beside Izumi, a Suite Neighborhood and a larger casino. Both also have the two-level Ultimate Family Suite, which includes an in-suite slide.
Spectrum was designed for the Asian market, so it adds Sichuan Red, a Noodle Bar, dim sum in the main dining room and the Sky Pad, a virtual reality bungee trampoline. Odyssey’s extras include Starbucks, El Loco Fresh and those open-air pools. If you are weighing the two styles side by side, our Anthem of the Seas vs Spectrum of the Seas comparison goes further.
What Ovation’s 2026 refit changed
Ovation of the Seas was the first of this class to get a Royal Amplification, and it now blurs the line between the two groups. Royal Caribbean’s refit in Singapore made these changes:
- Bionic Bar replaced by the Pesky Parrot Bar
- Jamie’s Italian replaced by Giovanni’s Italian Kitchen
- Wonderland replaced by Izumi Teppanyaki
- La Patisserie replaced by a Starbucks kiosk
- Music Hall removed, with its space used for a bigger casino and the new Sound Cellar venue
- The Living Room teen club converted to a suite lounge on deck 14
- Ultimate Family Suite added, along with extra cabins and pool deck casitas
Quantum and Anthem have had routine dry docks but no comparable amplification, and no dry dock is currently listed for either through 2029. Odyssey had routine maintenance in spring 2026. If a review of Ovation mentions robot bartenders or Wonderland, it predates the refit.
Quantum Class vs Oasis Class
Most comparisons stop at size, but the bigger difference is how each ship is laid out. Oasis Class ships spread guests across open neighborhoods, while Quantum Class ships concentrate their main attractions inside or high above the decks.
| Quantum Class | Oasis Class | |
|---|---|---|
| Ships | 5 | 6, with a seventh due in 2028 |
| Gross tons | About 169,000 | About 225,000 to 236,000 |
| Guests (double) | About 4,200 | About 5,500 to 5,700 |
| Length | About 1,140 feet | About 1,185 feet |
| Signature spaces | North Star, RipCord, SeaPlex, Two70 | Central Park, Boardwalk, Royal Promenade, AquaTheater |
| Entertainment | Two70 shows and main theater productions | Broadway-style musicals, high-diving and ice shows |
| Pools | Covered pool on four of five ships | Open-air pool decks |
| Best for | Alaska, cooler seasons, teens and tweens | Warm-weather trips, families wanting maximum choice |
One useful point: despite the size gap, space per guest is almost identical. Divide tonnage by double-occupancy guests and Quantum of the Seas comes to about 40.4 tons per guest, against about 40.5 on Oasis of the Seas. An Oasis ship feels bigger because it has more venues and more distinct places to spread out, rather than more room per person.
Oasis ships also offer more dining choice and have ice skating, neither of which Quantum Class ships match. For a full breakdown of the larger ships, read our guide to all six Oasis Class ships compared.
Which Quantum Class ship should you choose?
- Alaska in 2027: Quantum from Seattle for round trips, or Anthem for a one-way route including Seward.
- Short West Coast breaks: Ovation from Los Angeles, while it remains there.
- The Northeast: Odyssey from New Jersey saves flying, but plan for the open-air pools in cool weather.
- Greek Isles in summer 2027: Odyssey from Rome.
- Australia and New Zealand: Quantum from Brisbane or Anthem from Sydney this season.
- Asia: Spectrum, with a menu and casino designed for the region.
FAQs
How many Quantum Class ships are there?
There are five: Quantum, Anthem and Ovation of the Seas in the original Quantum Class, and Spectrum and Odyssey of the Seas in the Quantum Ultra group.
What are the Quantum Class ships in order?
Quantum of the Seas (2014), Anthem of the Seas (2015), Ovation of the Seas (2016), Spectrum of the Seas (2019) and Odyssey of the Seas (2021).
What is the difference between Quantum Class and Oasis Class ships?
Oasis Class ships are about a third bigger by tonnage and are built around open-air neighborhoods such as Central Park and the Boardwalk, with the AquaTheater and Broadway-style musicals. Quantum Class ships are smaller and keep more of their big attractions indoors, including SeaPlex and Two70, plus North Star and RipCord by iFLY.
What is the best Quantum Class ship?
It depends on where you want to sail. Odyssey of the Seas is the newest and the easiest for East Coast cruisers, while Quantum and Anthem suit an Alaska trip in 2027 because of their indoor spaces and North Star views. Choose another ship if the Bionic Bar matters, as Ovation no longer has it.
Do all Quantum Class ships have an indoor pool?
No. Quantum, Anthem, Ovation and Spectrum have a covered pool area, but Odyssey of the Seas was built with two open-air pools instead.
