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)
Mariner of the Seas
Seven Seas Voyager
Gross Tonnage
Mariner of the Seas
139,863 GT
Seven Seas Voyager
42,363 GT
Length
Mariner of the Seas
311 m
Seven Seas Voyager
207 m
Beam
Mariner of the Seas
48 m
Seven Seas Voyager
29 m
Passengers
Mariner of the Seas
3,807
Seven Seas Voyager
700
Crew
Mariner of the Seas
1,185
Seven Seas Voyager
447
Decks
Mariner of the Seas
—
Seven Seas Voyager
—
Year Built
Mariner of the Seas
2,003
Seven Seas Voyager
2,003
Space Ratio
Mariner of the Seas
36.7 GT/pax
Seven Seas Voyager
60.5 GT/pax
Passenger:Crew Ratio
Mariner of the Seas
3.21 :1
Seven Seas Voyager
1.57 :1
| Specification | Mariner of the Seas | Seven Seas Voyager |
|---|---|---|
| Overview | ||
| Cruise Line | Royal Caribbean International | Regent Seven Seas Cruises |
| Class | Voyager Class | Voyager Class |
| Status | active | active |
| Year Built | 2,003 | 2,003 |
| Dimensions | ||
| Gross Tonnage | 139,863 GTWinner | 42,363 GT |
| Length | 311 mWinner | 207 m |
| Beam | 48 mWinner | |
| Capacity | ||
| Passengers | 3,807Winner | 700 |
| Crew | 1,185Winner | 447 |
| Key Ratios | ||
| Space Ratio | 36.7 GT/pax | 60.5 GT/paxWinner |
| Passenger:Crew Ratio | 3.21:1 | 1.57:1Winner |
| Build | ||
| Builder | Kvaerner Masa-Yards | T. Mariotti |
| Flag | Bahamas | Bahamas |
| IMO Number | 9227510 | 9247144 |
Mariner of the Seas is the significantly larger vessel at 139,863 GT — 230% more than Seven Seas Voyager's 42,363 GT. Seven Seas Voyager offers more personal space with a space ratio of 60.5 GT per passenger versus 36.7. Seven Seas Voyager edges ahead in service with a passenger-to-crew ratio of 1.6:1, meaning more crew per guest.
| Category | Winner |
|---|---|
| Size | Mariner of the Seas |
| Capacity | Mariner of the Seas |
| Modernity | Tie |
| Service | Seven Seas Voyager |
| Spaciousness | Seven Seas Voyager |
Bottom line: Mariner of the Seas and Seven Seas Voyager are closely matched — your best pick depends on which qualities matter most to you.
Mariner of the Seas
Large 3,807-guest capacity offers competitive pricing
Well-suited for cruise newcomers
3,807 passengers means tons of activities
Comfortable atmosphere for two
Seven Seas Voyager
61 GT/pax means plenty of quiet space
1.6:1 passenger-crew ratio means exceptional service
Well-suited for cruise newcomers
Good range of onboard options
Free cancellation on most rooms
Bundle & save on your cruise trip
Medical, trip cancellation & luggage cover
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29 m |
| Draft | 9.3 mWinner | 7 m |
| Decks | — | — |
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