Detailed Evaluation & Buyer Recommendation
Sea Ray 680 Sun Sport 2005 vs Sea Ray SLX 350 2023 — Same Brand, Different Boat
The Sea Ray 680 Sun Sport 2005 vs Sea Ray SLX 350 2023 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
Size is the most obvious dividing line here. The Sea Ray SLX 350 2023 measures 34,7 feet overall (2023), giving it roughly 27,7 additional feet of deck space compared to the Sea Ray 680 Sun Sport 2005 at 7,0 feet (2005). Weight tells a clearer story for trailering families: the Sea Ray SLX 350 2023 tips the scales at 13 890 lbs — 13 815 lbs less than the Sea Ray 680 Sun Sport 2005 at 75 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
The Sea Ray SLX 350 2023 tops out at 300 hp. Engine specs for the Sea Ray 680 Sun Sport 2005 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Sea Ray SLX 350 2023 carries 177 gallons versus 1 gallons in the Sea Ray 680 Sun Sport 2005. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Sea Ray 680 Sun Sport 2005 is rated for 21 passengers, while the Sea Ray SLX 350 2023 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray 680 Sun Sport 2005 could be the deciding factor.
Bottom line: Choose the Sea Ray 680 Sun Sport 2005 if your priority is putting more people on the water — it handles 21 passengers and at 7,0 ft it has the deck room to back that rating up comfortably. The Sea Ray SLX 350 2023 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.
General Boat Info
MakeSea Ray
Makenot available
Model680 Sun Sport?
Modelnot available
Model Year2005
Model Yearnot available
Measurements / Dimensions
Beam18 ft. 6 in. (5.64 m)
Beam10.60 ft
Beam - Meters5.64
Beam - Meters3.23
Beam - Inches222
Beam - Inches127
Deadrise19℃
Deadrisenot available
Draft [max] - Detail57 in. (144.8 cm)
Draft [max] - Detail3.60 ft
Draft [max] - Meters1.45
Draft [max] - Meters1.1
Draft [max] - Inches57
Draft [max] - Inches43
Weight - Detail75,000 lbs. (34,029 kg)
Weight - Detailnot available
Weight - kg34019.4
Weight - kgnot available
Weight - lbs.75
Weight - lbs.not available
Length - Meters21.46
Length - Metersnot available
Length - Feet7
Length - Feet34.7
Length - Inches5
Length - Inchesnot available
Length overall - Detail70 ft. 5 in. (21.46 m)
Length overall - Detail34.70 ft
Length overall - Meters21.46
Length overall - Meters10.58
Length overall - Inches845
Length overall - Inches416
Draft Minnot available
Draft Min2.50 ft
Displacementnot available
Displacement13890.00 lbs
Engine and Drivetrain
Engine/s standardT-Caterpillar? C-30 Diesel Inboards (T-1504 hp - 1121 kw)
Engine/s standardnot available
Fuel tank capacity - Detail1,000 gal. (3,785 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters3785.41
Fuel tank capacity - Liters670.02
Fuel tank capacity - Gal1
Fuel tank capacity - Gal177
Drive typeInboard
Drive typenot available
Engine makenot available
Engine makeMercruiser
Engine modelnot available
Engine model6.2L MPI ECTBravo
Horsepowernot available
Horsepower300 hp
Engine 2 Engine Makenot available
Engine 2 Engine MakeMercruiser
Engine 2 Engine Modelnot available
Engine 2 Engine Model6.2L MPI ECTBravo
Engine 2 Horsepowernot available
Engine 2 Horsepower300 hp
Operational Info
Water capacity200 gal. (757 l)
Water capacity3
Holding tank capacity - Detail100 gal. (378.5 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Liters378.54
Holding tank capacity - Litersnot available
Holding tank capacity - Gal1
Holding tank capacity - Galnot available
Boat typenot available
Boat typePower