2021 Sea Ray SLX 310 Boat in Okoboji, IA 51355 US
Built in 2021
SLX 310
1 Engine (--)
31 feet
Gas
Other
The SLX 310 demands everyone's full attention. And by everyone we mean not only the abundance of people who can lounge comfortably onboard, but also the passersby whose heads will turn at the iconic styling and elegant hull sculpting. An expansive cockpit social area, an aft-facing lounger that converts to a sunpad, and a standard wetbar make relaxation and onboard entertaining a given. Underway, the delight of good company merges with the thrill of precision performance, as the SLX's available twin MerCruiser® engines and innovative Quiet Ride™ hull featuring Tuned Transom® combine forces beautifully.
Features may include:- A superior ride & handling is further enhanced by standard Axius™ Propulsion System with joystick control and optional Dynamic Running Surface™
- Mercury VesselView® Mobile - links to your iPhone® or Android™ mobile device via Bluetooth® technology.
- The intuitive helm comes standard with Dual 9" Simrad® touchscreen displays with Mercury® VesselView® Link Data, chartplotting maps (North America Only), depth & fishfinder capabilities and Active Trim (automatic engine trim system).
- Premium Fusion® audio system with Bluetooth®, Wi-Fi audio streaming with Apple AirPlay® 2 & Digital Signal Processing (DSP)
- Bow & Stern Eyes, Stainless Steel
- Cleats, Thru-Bolted (8), 8" Stainless Steel with Sea Ray Logo
- Deck Fuel Fill Plate - Chrome
- Gel Coat, Arctic White
- Handrail, Stainless Steel - Transom (2)
- Beverage Holders - Stainless with Rubber Inserts & Recessed Holders in Bow Side Panels
- Cockpit Vinyl Color: Ivory (White Base Vinyl with Brown Accent Vinyl)
- Cooler, Carry-On with Designated Storage
- Door, Bow Block-Off, Acrylic
- Floor, Finished Fiberglass with Drainage Overboard
- Glove Box, Portside, Lockable
- Grab Handles, Stainless Steel with Leather Wrapped Grips
- Hatch, Engine Compartment - Electrically Actuated
- Bow Loungers with Flip-Down Armrests & Storage Below
- Cockpit Social Area with Opposing Seating & Storage
- Dual Helm Bench with Slider, Flip-Up Thigh-Rise Bolster & Fiberglass Base
- Dual Helm Companion with Rotating Slider, Flip-Up Thigh-Rise Bolster & Aluminum Pedestal
- Dual Digital Dash with Mercury® VesselView® Link Data (9")
- Active Trim (Automatic Engine Trim System)
- Chartplotter with Preloaded Charts (North America Only)
- Bilge Pump, 12V Automatic
- Bilge Pump, 12V Automatic High-W
Price History
| Date | Event | Price |
|---|---|---|
| 6/19/26 | Initial price | $269,995 |
2021 Sea Ray SLX 310 Video Tours
Boattest.com Review
Overview
The C-Ray SLX310 is a premium model from C-Ray, blending luxury features with advanced technology. This boat is designed to offer both comfort and performance, making it suitable for a variety of recreational boating activities. Our evaluation includes a detailed inspection of its features and a comprehensive performance test.
Exterior Design and Deck Features
The SLX310 features a well-thought-out exterior with a spacious layout. The swim platform area provides 1 foot 1 inch of decking between the outboard well and the transom, creating ample space between the two swim platforms, which measure 4 feet fore and aft. The decking is covered with soft C-Deck non-skid material to enhance traction. Multiple water access points include a fold-out swim step equipped with a sensor for operator alert, ideal for diving or towing sports, and a traditional reboarding ladder certified by the NMMA for safety standards. The sun pad measures 3 feet 2 inches by 5 feet 4 inches and includes a five-position adjustable backrest, storage with built-in dividers beneath, and convenient cup holders integrated into the armrests. Stereo controls and a 12-volt charging station are embedded in the port armrest. The walkthrough from the swim platform rises by a 10-inch step featuring a hatch for wet gear storage and a freshwater shower. The hull houses 12-volt DC switches, a 110-volt battery charger, and a boarding step. The power tower, constructed from aluminum, serves as a high tow point for wakeboarders and supports an electrically actuated bimini shade that lowers 1 foot 8 inches without obstructing the driver's view. A hardtop option is also available.
Cockpit and Helm Station
The cockpit is designed for socializing and functionality, featuring L-shaped seating around a standard table that comfortably accommodates six guests. Upholstery in an earth-tone mocha color is enhanced with diamond stitching for a refined appearance. Storage is abundant, including under-seat compartments, a corner bolster storage area, and a glove box. The floor includes quick-dry pull-out mats and drainage for easy maintenance. The transom sun pad lifts hydraulically to reveal access to the battery pack and other mechanical components such as the engine steering pump and house batteries. A wet bar to starboard includes a sink, grill, storage cabinets, and a fridge/freezer compartment. Forward of the wet bar is an additional cozy seat. The helm station is equipped with dual 9-inch Simrad displays integrated with Mercury Digital Vessel View, offering chart plotting, depth sounding, water temperature, and fish finding capabilities. The helm features a tilt steering wheel, digital push-button start, and conveniently placed ignition keys outside the knee-strike zone. Controls include standard trim tabs, Mercury DTS spinnaker control, and optional joystick and active trim systems, which enhance handling and ease of operation. Visibility from the helm is excellent, aided by a windshield wiper and a low-glare dark vinyl dash insert. The helm seat and companion seat are upholstered with premium materials, include diamond stitching, and offer practical features such as flip-up bolsters, cup holders, grab handles, and swivel capability for the companion seat to engage with the cockpit area. Additional storage includes a closed cubby, an open tray with rubber mat, angled footrests, and an in-floor locker with a sliding drawer.
Private Accommodations and Head
The port console houses a well-appointed head compartment featuring a port light for ventilation, a stainless steel sink, a grab handle, and a vacuum flush toilet with a 20-gallon holding tank. The head is designed for convenience and comfort, complementing the boat’s overall luxurious feel.
Bow Seating and Storage
The bow area offers nearly a full circle of well-padded seating with a standard side-mounted table, with an option for a second table to starboard to accommodate larger gatherings. Two optional filler cushions can convert the seating into a large sun pad. The seats include padded armrests that fold up and down, grab rails, cup holders, and integrated speakers. Storage compartments are accessible beneath the seats, including a large compartment under the starboard seat that extends beneath the helm. The center seat cushion lifts to reveal a step and a hatch providing access to the anchor rode locker, which contains the windlass with remote operation, anchor sprayer, spotlight, and cleat. A beach boarding ladder can also be installed in this area.
Power and Performance
The SLX310 measures 33 feet 10 inches overall with a beam of 10 feet 2 inches and a dry weight of 10,335 pounds. Our test boat, with 50% fuel, two people, and gear, had an estimated test weight of 11,229 pounds. Powered by twin 300-horsepower Mercury Verado outboards, the boat achieved a top speed of 51.3 miles per hour at 5,500 RPM. The most efficient cruising speed was 35.8 miles per hour at 4,000 RPM, with a fuel consumption of 21.5 gallons per hour, yielding a range of approximately 237 statute miles while maintaining a 10% fuel reserve. The SLX310 planes quickly in 4.8 seconds and features SeaRay’s dynamic running surface triangular plates at the stern, which can be manually or automatically adjusted to optimize performance. The ride quality is solid and smooth, with a 21-degree deadrise that cushions impacts in choppy conditions. The boat’s high freeboard helps keep passengers dry, and it responds predictably during high-speed maneuvers. The joystick option greatly enhances precision during docking and low-speed handling.
Conclusion
The C-Ray SLX310 demonstrates a strong attention to detail, combining luxury, technology, and performance in a well-rounded package. Its user-friendly features, including advanced digital controls and thoughtful design elements, make it accessible to a wide range of boaters. The boat’s solid ride, responsive handling, and comprehensive amenities ensure it is well-equipped for enjoyable days on the water.
Rating: 4.4 out of 5
Overview from around the web 2021 Sea Ray SLX 310
The 2021 Sea Ray SLX 310 has garnered positive reviews from customers who appreciate its blend of luxurious features, performance, and innovative design
Many boaters praise its impressive handling and smooth ride, making it a great choice for both leisurely cruises and spirited outings on the water. Customers frequently highlight the spacious and well-appointed cockpit, which provides ample seating for family and friends, as well as the convenience of the integrated wet bar and optional grill for entertaining. The upgraded sound system and customizable lighting create an inviting atmosphere for gatherings on board. The advanced technology features, including a user-friendly vessel control system and touchscreen displays, receive high marks for ease of use. Boaters also appreciate the smooth transition from indoor to outdoor spaces, thanks to the large, retractable sunshade and easy access to the swim platform. Overall, the 2021 Sea Ray SLX 310 stands out for its stylish design, robust performance, and the luxurious comfort it offers, making it a popular choice among enthusiasts and families alike.
The Biggest Pros and Cons
The 2021 Sea Ray SLX 310 is a stylish and versatile boat known for its performance and comfort. Here’s a breakdown of its pros and cons:
Pros
Performance: The SLX 310 is equipped with powerful engines that deliver impressive speed and acceleration, making it suitable for both leisurely cruising and spirited adventures.
Design and Aesthetics: The sleek lines and contemporary design elements of the SLX 310 give it a modern and elegant appearance, appealing to those who value style on the water.
Comfort and Space: With a spacious cockpit and an ergonomic layout, the SLX 310 comfortably accommodates guests. The seating is designed for relaxation, with options for sun lounging and socializing.
Technology: The boat is outfitted with state-of-the-art technology, including a touchscreen display for navigation and entertainment, as well as premium audio systems for an enhanced experience.
Versatility: The SLX 310 offers flexible configurations and optional features, allowing owners to tailor the boat to their specific boating needs, whether for day trips or longer outings.
Storage: Ample storage compartments throughout the boat provide a practical solution for stowing gear, making it easy to keep the deck organized and clutter-free.
Cons
Price: As a premium luxury sports boat, the SLX 310 comes with a higher price tag, which may be a consideration for budget-conscious buyers.
Fuel Consumption: With powerful engines, fuel consumption may be on the higher side, potentially increasing operational costs for frequent use.
Maintenance: High-performance boats typically require more extensive maintenance, which can lead to increased upkeep costs over time.
Space Limitations for Overnighting: While the SLX 310 is great for day outings, the sleeping accommodations may be limited for overnight trips, making it less ideal for long vacations on the water.
Weight: The boat's size and weight may limit the suitability for certain types of launching and docking, particularly in shallower waters or less accessible ramps.
Made For
The 2021 Sea Ray SLX 310 is designed for discerning boat enthusiasts who value luxury, performance, and versatility on the water. This model appeals to families and friends seeking memorable experiences on the water, whether it's leisurely cruising, entertaining guests, or engaging in water sports. With its spacious layout and comfortable seating, the SLX 310 is perfect for social gatherings, providing the ideal setting for sunbathing, dining, or simply relaxing. The boat's powerful engines ensure exhilarating performance, making it suitable for adventurous souls who crave speed and agility. Furthermore, it caters to those who appreciate cutting-edge technology, featuring innovative navigation systems and entertainment options that elevate every outing. Whether you're an experienced boater or new to the marine lifestyle, the 2021 Sea Ray SLX 310 offers a blend of elegance and functionality that fits a wide range of boating lifestyles.
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 2021 Sea Ray SLX 310 | |||||
|---|---|---|---|---|---|
| $269,995 | $179,995 | $169,000 | $149,995 | $149,000 | $129,995 |
| Okoboji | Okoboji | Okoboji | Okoboji | Okoboji | Okoboji |
| 31' | 26' | 28' | 31' | 26' | 28' |
| - | - | - | - | 350 hp | - |
| 4 | 258 | 5 | 699 | 26 | 388 |
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Meet the Broker
Address
Boat Location
Contact Mau Marine about 2021 Sea Ray SLX 310
1400 Gordon Dr., Okoboji, IA, 51355
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