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)
Oasis of the Seas
Spectrum of the Seas
Gross Tonnage
Oasis of the Seas
225,282 GT
Spectrum of the Seas
169,379 GT
Length
Oasis of the Seas
362 m
Spectrum of the Seas
347 m
Beam
Oasis of the Seas
60 m
Spectrum of the Seas
41 m
Passengers
Oasis of the Seas
6,780
Spectrum of the Seas
4,246
Crew
Oasis of the Seas
2,165
Spectrum of the Seas
1,551
Decks
Oasis of the Seas
—
Spectrum of the Seas
—
Year Built
Oasis of the Seas
2,009
Spectrum of the Seas
2,019
Space Ratio
Oasis of the Seas
33.2 GT/pax
Spectrum of the Seas
39.9 GT/pax
Passenger:Crew Ratio
Oasis of the Seas
3.13 :1
Spectrum of the Seas
2.74 :1
| Specification | Oasis of the Seas | Spectrum of the Seas |
|---|---|---|
| Overview | ||
| Cruise Line | Royal Caribbean International | Royal Caribbean International |
| Class | Oasis Class | Quantum Ultra Class |
| Status | active | active |
| Year Built | 2,009 | 2,019Winner |
| Dimensions | ||
| Gross Tonnage | 225,282 GTWinner | 169,379 GT |
| Length | 362 mWinner | 347 m |
| Beam | 60 mWinner | |
| Capacity | ||
| Passengers | 6,780Winner | 4,246 |
| Crew | 2,165Winner | 1,551 |
| Key Ratios | ||
| Space Ratio | 33.2 GT/pax | 39.9 GT/paxWinner |
| Passenger:Crew Ratio | 3.13:1 | 2.74:1Winner |
| Build | ||
| Builder | STX Finland | Meyer Werft |
| Flag | Bahamas | Bahamas |
| IMO Number | 9383936 | 9778856 |
Oasis of the Seas is the significantly larger vessel at 225,282 GT — 33% more than Spectrum of the Seas's 169,379 GT. Spectrum of the Seas offers more personal space with a space ratio of 39.9 GT per passenger versus 33.2. Built in 2019, Spectrum of the Seas is 10 years newer — an advantage for travellers seeking modern amenities and design.
| Category | Winner |
|---|---|
| Size | Oasis of the Seas |
| Capacity | Oasis of the Seas |
| Modernity | Spectrum of the Seas |
| Service | Spectrum of the Seas |
| Spaciousness | Spectrum of the Seas |
Bottom line: Spectrum of the Seas wins more categories (3 vs 2), making it the stronger all-round choice based on current data.
Oasis of the Seas
Large 6,780-guest capacity offers competitive pricing
6,780 passengers means tons of activities
Well-suited for cruise newcomers
Comfortable atmosphere for two
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
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41 m |
| Draft | 9.3 mWinner | 8.9 m |
| Decks | — | — |
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