Side-by-side cruise ship comparison · Updated January 2026
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across 5 categories
Size
Based on gross tonnage and length
Capacity
Based on passengers and crew
Modernity
Based on year built
Service
Based on passenger-to-crew ratio (lower is better)
Spaciousness
Based on gross tonnage per passenger (higher is better)
Quantum of the Seas
Spectrum of the Seas
Gross Tonnage
Quantum of the Seas
168,666 GT
Spectrum of the Seas
169,379 GT
Length
Quantum of the Seas
348 m
Spectrum of the Seas
347 m
Beam
Quantum of the Seas
41 m
Spectrum of the Seas
41 m
Passengers
Quantum of the Seas
4,180
Spectrum of the Seas
4,246
Crew
Quantum of the Seas
1,500
Spectrum of the Seas
1,551
Decks
Quantum of the Seas
—
Spectrum of the Seas
—
Year Built
Quantum of the Seas
2,014
Spectrum of the Seas
2,019
Space Ratio
Quantum of the Seas
40.4 GT/pax
Spectrum of the Seas
39.9 GT/pax
Passenger:Crew Ratio
Quantum of the Seas
2.79 :1
Spectrum of the Seas
2.74 :1
| Specification | Quantum of the Seas | Spectrum of the Seas |
|---|---|---|
| Overview | ||
| Cruise Line | Royal Caribbean International | Royal Caribbean International |
| Class | Quantum Class | Quantum Ultra Class |
| Status | active | active |
| Year Built | 2,014 | 2,019Winner |
| Dimensions | ||
| Gross Tonnage | 168,666 GT | 169,379 GTWinner |
| Length | 348 mWinner | 347 m |
| Beam | 41 m | 41 m |
| Draft | ||
| Capacity | ||
| Passengers | 4,180 | 4,246Winner |
| Crew | 1,500 | 1,551Winner |
| Key Ratios | ||
| Space Ratio | 40.4 GT/paxWinner | 39.9 GT/pax |
| Passenger:Crew Ratio | 2.79:1 | 2.74:1Winner |
| Build | ||
| Builder | Meyer Werft | Meyer Werft |
| Flag | Bahamas | Bahamas |
| IMO Number | 9656084 | 9778856 |
Quantum of the Seas
4,180 passengers means tons of activities
Well-suited for cruise newcomers
Large 4,180-guest capacity offers competitive pricing
40 GT/pax means plenty of quiet space
Spectrum of the Seas
Built in 2019 with modern facilities — great for a first cruise
Large 4,246-guest capacity offers competitive pricing
4,246 passengers means tons of activities
Comfortable atmosphere for two
Free cancellation on most rooms
Bundle & save on your cruise trip
Medical, trip cancellation & luggage cover
We may earn a commission from partner bookings at no extra cost to you.
8.8 m |
8.9 mWinner |
| Decks | — | — |
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