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)
Harmony of the Seas
Oasis of the Seas
Gross Tonnage
Harmony of the Seas
226,963 GT
Oasis of the Seas
225,282 GT
Length
Harmony of the Seas
362 m
Oasis of the Seas
362 m
Beam
Harmony of the Seas
66 m
Oasis of the Seas
60 m
Passengers
Harmony of the Seas
6,687
Oasis of the Seas
6,780
Crew
Harmony of the Seas
2,100
Oasis of the Seas
2,165
Decks
Harmony of the Seas
—
Oasis of the Seas
—
Year Built
Harmony of the Seas
2,016
Oasis of the Seas
2,009
Space Ratio
Harmony of the Seas
33.9 GT/pax
Oasis of the Seas
33.2 GT/pax
Passenger:Crew Ratio
Harmony of the Seas
3.18 :1
Oasis of the Seas
3.13 :1
| Specification | Harmony of the Seas | Oasis of the Seas |
|---|---|---|
| Overview | ||
| Cruise Line | Royal Caribbean International | Royal Caribbean International |
| Class | Oasis Class | Oasis Class |
| Status | active | active |
| Year Built | 2,016Winner | 2,009 |
| Dimensions | ||
| Gross Tonnage | 226,963 GTWinner | 225,282 GT |
| Length | 362 m | 362 m |
| Beam | 66 mWinner | 60 m |
| Draft | ||
| Capacity | ||
| Passengers | 6,687 | 6,780Winner |
| Crew | 2,100 | 2,165Winner |
| Key Ratios | ||
| Space Ratio | 33.9 GT/paxWinner | 33.2 GT/pax |
| Passenger:Crew Ratio | 3.18:1 | 3.13:1Winner |
| Build | ||
| Builder | STX France | STX Finland |
| Flag | Bahamas | Bahamas |
| IMO Number | 9682875 | 9383936 |
Harmony of the Seas
Large 6,687-guest capacity offers competitive pricing
6,687 passengers means tons of activities
Built in 2016 with modern facilities — great for a first cruise
Comfortable atmosphere for two
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
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.
9.3 m |
9.3 m |
| Decks | — | — |
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