Spots going fastFour Seasons I vs Viking Mars
Side-by-side cruise ship comparison · Updated February 2026
Viking Mars is the significantly larger vessel at 47,800 GT — 41% more than Four Seasons I's 34,000 GT. Four Seasons I offers more personal space with a space ratio of 153.2 GT per passenger versus 51.4. Built in 2025, Four Seasons I is 3 years newer — an advantage for travellers seeking modern amenities and design.
Score: 3 – 4
Quick Compare
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Category
Four Seasons I
Viking Mars
Size
34,000 GT
47,800 GT
Passengers
222
930
Year Built
2025
2022
Crew Ratio
1:0.5
1:1.7
Space Ratio
153.2
51.4
Decks
—
—
Length
207m
229m
From Price
—
$8,299/pp
Comparison Verdict
Viking Mars is the significantly larger vessel at 47,800 GT — 41% more than Four Seasons I's 34,000 GT. Four Seasons I offers more personal space with a space ratio of 153.2 GT per passenger versus 51.4. Built in 2025, Four Seasons I is 3 years newer — an advantage for travellers seeking modern amenities and design.
| Category | Winner |
|---|---|
| Size | Viking Mars |
| Capacity | Viking Mars |
| Modernity | Four Seasons I |
| Service | Four Seasons I |
| Spaciousness | Four Seasons I |
| Decks | Tie |
| Length | Viking Mars |
| Fleet Power | Viking Mars |
Bottom line: Viking Mars leads 4–3 across our categories — strongest in Size. Choose Viking Mars for overall superiority; pick Four Seasons I if Modernity matter more to you.
Which Ship Is Right for You?
Choose Four Seasons I if...
- You want the newer ship (built 2025, 3yr newer)
- Better service ratio (0.5:1 crew ratio)
- More space per guest (153.2 GT/pax)
Choose Viking Mars if...
- Size matters to you (47,800 GT)
- More onboard variety (930 guests)
You've compared the ships. Now see what they cost.
See Current Prices
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Sailing Prices
| Four Seasons I | Viking Mars | |
|---|---|---|
| Cheapest | — | $8,299 pp |
| Departing | — | Aug 31 |
| Duration | — | 12 nights |
| View Deal |
Prices from Cruisebound. We may earn a commission at no extra cost to you.
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Frequently Asked Questions
How is the comparison score calculated?
We compute scores across 8 categories using real spec data — gross tonnage, passenger capacity, crew capacity, year built, length, deck count, space ratio, and fleet power. Each category awards one point to the winning ship.
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; mass-market ships often fall in the 30-40 range.
What does the passenger-to-crew ratio mean?
Passengers per crew member. Lower is better — more staff per guest means better service. Luxury lines aim below 2:1; large mainstream ships may be 3-4:1.
Are the prices shown accurate?
Prices are sourced from Cruisebound and reflect real-time availability. They may change based on cabin type, date, and demand. Click through to see the latest fares.
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+ vessels, revalidated every 5 minutes via ISR. The "Updated" timestamp shows when records were last modified.
