The Sea Ray SLX 400 is a masterclass in luxury and versatility, crafted for those who demand excellence on the water. This stunning vessel, often referred to as the ‘Entertainer’, provides an exquisite blend of performance and comfort, making it an ideal choice for both exhilarating cruises and serene getaways. With a length of 12 meters, the SLX 400 is spacious enough to accommodate up to 8 day guests comfortably, offering ample seating and lounging areas that are perfect for socializing or relaxing under the sun. Its innovative design features a fold-down swim terrace, providing easy access to the water and extending the usable space on board. Inside, the cabin is well-appointed with luxurious finishes and can sleep up to 4 guests, thanks to its two cozy cabins. The galley is equipped with all the essentials needed for a day of entertaining, while the bathroom offers full standing headroom and modern amenities. Powered by twin inboard engines, the SLX 400 delivers a robust cruising performance with a top speed that ensures you can get to your destination swiftly. The hull is constructed from high-quality GRP, ensuring durability and a sleek, modern finish. This model’s planning hull configuration enhances its speed and fuel efficiency, allowing for a smooth ride even at higher speeds. Designed by Sea Ray’s in-house team, the SLX 400 represents the pinnacle of modern marine engineering and style, promising unforgettable moments on the water. With a new price starting at approximately 500,000 EUR, it offers exceptional value for those seeking a top-tier boating experience.
Length
12M
Beam
3.7M
Draft
1M
Day Guests
8
Sleeping
4
Cabin
2
Cruise Speed
25KT
Max Speed
35KT
Fuel
946L
Range
150NM
Engine
2 x MerCruiser 8.2L 380 HP
Option 1
2 x MerCruiser 8.2L HO 430 HP
Option 2
2 x Volvo Penta D6 400 HP
Naval
Sea Ray Design Team
Exterior
Sea Ray Design Team
Interior
Sea Ray Design Team
New Starting From
€500,000
High Price Brokerage
€450,000
Low Price Brokerage
€350,000
Thirty five knots at the top, twenty five at a relaxed cruise, and real sterndrive muscle behind both.
Sea Ray offers the SLX 400 with a choice of twin MerCruiser 8.2 litre power, 380 horsepower as standard or 430 horsepower in the HO option, alongside a Volvo Penta D6 alternative at 400 horsepower a side. The 430 horsepower Bravo IIIx configuration is the one independent judges tested when they named her Boat of the Year, and it is easy to see why, with strong acceleration onto the plane, confident handling through turns, and enough reserve power to carry a full complement of guests without feeling strained. A 946 litre fuel capacity supports a 150 nautical mile range at cruise, generous for a boat built around day trips rather than long passages. Draught is a shallow 1 metre, enough to tuck into anchorages a deeper hulled yacht would avoid.
She reads as a sports boat first, with lines built for speed rather than show.
The GRP hull carries a planing configuration tuned for the twin sterndrive setup, and the deadrise through the transom keeps her settled at speed while still turning sharply when asked. A fold down swim terrace extends the usable deck at anchor, widening the stern into a proper platform for swimming and watersports rather than a narrow ledge. Dedicated stowage for stand up paddleboards sits within easy reach of the water, a small detail that says more about how owners actually use her than any brochure line could. The low profile hardtop and clean deck lines keep the silhouette athletic rather than boxy, in keeping with her position at the top of Sea Ray’s open top sports range.
Life on the SLX 400 happens outdoors, and the layout is built around that fact.
Seating and lounging space for up to eight guests wraps around the cockpit, with a galley area built for easy entertaining rather than serious cooking. The swim platform and transom shower make the transition from boat to water and back painless, while bow seating gives a second social zone away from the helm. It is a boat designed to be driven to a sandbar or an anchorage and lived on for the day, with the cabin below there for shade, a change of clothes, or an afternoon rest rather than as the main event. That balance, outdoor space first and cabin second, is exactly what earned her recognition against more than a hundred rivals in her debut year.
Below deck, two cabins sleep four in genuine comfort, not just a token berth.
Headroom below reaches close to two metres, generous for a boat of this size and enough that neither cabin feels like an afterthought squeezed beneath the cockpit. The layout favours flexibility, with a forward area that converts between seating and a berth, and a second sleeping space aft, both finished with the same attention as the deck above. A fully standing head and a compact galley mean the SLX 400 can genuinely cover an overnight stop or a long lunch at anchor without anyone feeling like they are camping. It is accommodation built for occasional use rather than full time living aboard, and it suits the boat’s day first character well.
An independently judged Boat of the Year sits behind every spec sheet number.
Built in GRP at Sea Ray’s US yard, the SLX 400 measures 12 metres overall on a 3.7 metre beam, with a shallow 1 metre draught that opens up shallower anchorages than most boats her size can reach. The award came after testing against more than a hundred competing boats that year, assessed on performance, safety and finish rather than sales volume, a distinction that still matters when comparing her against newer rivals. Two sterndrive engine options and a Volvo Penta alternative give an owner real choice in how she is specified, while the straightforward twin engine layout keeps maintenance predictable. For a buyer who wants a day boat with a proven, independently recognised pedigree, the SLX 400 remains a credible choice years after her debut.
Length
10.5M
Beam
3.2M
Draft
0.9M
Guests
2
Cabins
1
Cruise Speed
25Kt
Max Speed
35Kt
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