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)
Marella Discovery
Seven Seas Mariner
Gross Tonnage
Marella Discovery
69,472 GT
Seven Seas Mariner
48,075 GT
Length
Marella Discovery
264 m
Seven Seas Mariner
216 m
Beam
Marella Discovery
32 m
Seven Seas Mariner
29 m
Passengers
Marella Discovery
1,830
Seven Seas Mariner
700
Crew
Marella Discovery
720
Seven Seas Mariner
445
Decks
Marella Discovery
—
Seven Seas Mariner
—
Year Built
Marella Discovery
1,995
Seven Seas Mariner
2,001
Space Ratio
Marella Discovery
38.0 GT/pax
Seven Seas Mariner
68.7 GT/pax
Passenger:Crew Ratio
Marella Discovery
2.54 :1
Seven Seas Mariner
1.57 :1
| Specification | Marella Discovery | Seven Seas Mariner |
|---|---|---|
| Overview | ||
| Cruise Line | Marella Cruises | Regent Seven Seas Cruises |
| Class | Century Class | Mariner Class |
| Status | active | active |
| Year Built | 1,995 | 2,001Winner |
| Dimensions | ||
| Gross Tonnage | 69,472 GTWinner | 48,075 GT |
| Length | 264 mWinner | 216 m |
| Beam | 32 mWinner | |
| Capacity | ||
| Passengers | 1,830Winner | 700 |
| Crew | 720Winner | 445 |
| Key Ratios | ||
| Space Ratio | 38.0 GT/pax | 68.7 GT/paxWinner |
| Passenger:Crew Ratio | 2.54:1 | 1.57:1Winner |
| Build | ||
| Builder | Meyer Werft | Chantiers de l'Atlantique |
| Flag | Malta | Bahamas |
| IMO Number | 9070622 | 9210139 |
Marella Discovery is the significantly larger vessel at 69,472 GT — 45% more than Seven Seas Mariner's 48,075 GT. Seven Seas Mariner offers more personal space with a space ratio of 68.7 GT per passenger versus 38.0. Built in 2001, Seven Seas Mariner is 6 years newer — an advantage for travellers seeking modern amenities and design.
| Category | Winner |
|---|---|
| Size | Marella Discovery |
| Capacity | Marella Discovery |
| Modernity | Seven Seas Mariner |
| Service | Seven Seas Mariner |
| Spaciousness | Seven Seas Mariner |
Bottom line: Seven Seas Mariner wins more categories (3 vs 2), making it the stronger all-round choice based on current data.
Marella Discovery
Comfortable atmosphere for two
Well-suited for cruise newcomers
Good value for money
Good range of onboard options
Seven Seas Mariner
69 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 | 14 mWinner | 7 m |
| Decks | — | — |
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