6 Night Western Caribbean Cruise
Royal Caribbean • Mariner of the Seas
Nov 1, 2026 · 6 nights
Caribbean
$329/person$55/night
View DealShip comparison
Mariner of the Seas vs Seven Seas Voyager
Side-by-side cruise ship comparison. Mariner of the Seas wins 4 of 7 scored categories.
At a glance
Quick Compare
Category
Mariner of the Seas
Seven Seas Voyager
Size
139,863 GT
42,363 GT
Passengers
3,807
700
Year built
2003
2003
Crew ratio
3.2 guests per crew
1.6 guests per crew
Space ratio
36.7 GT per guest
60.5 GT per guest
Decks
No data
No data
Length
311 m
207 m
From price
$329.05 pp
$10,749 pp
The verdict
Comparison Verdict
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 at 1.6 guests per crew, 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 |
| Decks | No data |
| Length | Mariner of the Seas |
| Fleet Power | Mariner of the Seas |
Bottom line: Mariner of the Seas leads 4–2 across our categories, strongest in Size. Choose Mariner of the Seas for overall superiority; pick Seven Seas Voyager if its strengths matter more to you.
Decide
Which Ship Is Right for You?
Choose Mariner of the Seas if
- Size matters to you (139,863 GT)
- More onboard variety (3,807 guests)
- Lower fares per night (from $55 per person per night)
Choose Seven Seas Voyager if
- More crew per guest (1.6 guests per crew)
- More space per guest (60.5 GT per guest)
Prices
See Current Prices
You have compared the ships. Now see what they cost.
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Fares
Sailing Prices
| Detail | Mariner of the Seas | Seven Seas Voyager |
|---|---|---|
| Cheapest | $329.05 pp | $10,749 pp |
| Per night | $55 pp | $1,075 pp |
| Departing | Nov 1 | Nov 27 |
| Duration | 6 nights | 10 nights |
| View sailing | View sailing |
Prices from Cruisebound, per person, for the sailing shown.
Go deeper
Deep Dive
Sailings
Upcoming Sailings
Upcoming Sailings on Mariner of the Seas
$719/person$103/night
View Deal
7 Night Western Caribbean Cruise
Royal Caribbean • Mariner of the Seas
Nov 14, 2026 · 7 nights
Caribbean
$466/person$67/night
View DealUpcoming Sailings on Seven Seas Voyager
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FAQ
Frequently Asked Questions
How is the comparison score calculated?
We score 8 categories from spec data: size, capacity, modernity, service, spaciousness, decks, length and fleet power. Each category awards one point to the winning ship. A category where either ship has no data is marked No data and left out of the score.
What is the space ratio and why does it matter?
Space ratio is gross tonnage divided by passenger capacity. A higher number means more space per guest. Luxury lines typically score above 40, and mass-market ships often fall between 30 and 40.
What does the passenger-to-crew ratio mean?
It is the number of guests for each crew member, shown as "3.0 guests per crew". Lower is better: more staff per guest usually means more attentive service. Luxury lines aim for fewer than 2 guests per crew, and large mainstream ships often carry 3 to 4.
Are the prices shown accurate?
Prices come from Cruisebound and are per person for the sailing shown. They change with cabin type, date and demand, so open the sailing to see the current fare.
Can I compare more than two ships?
Yes, up to four ships. Use the search tool on the compare hub page to add additional ships.
How current is the ship data?
Specifications come from our database of 380+ ships, and this page refreshes daily. An "Updated" date appears at the top when either ship's record changed in the last 30 days.
