The Sea Ray 390 Sundancer 2010 vs Sea Ray Sundancer 470 2013 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 Sundancer 470 2013 measures 47,3 feet overall (2013), giving it roughly 8,3 additional feet of deck space compared to the Sea Ray 390 Sundancer 2010 at 39,0 feet (2010). Weight tells a clearer story for trailering families: the Sea Ray Sundancer 470 2013 tips the scales at 28 500 lbs — 28 254 lbs less than the Sea Ray 390 Sundancer 2010 at 246 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 power gap is worth calling out. Rated to 480 hp, the Sea Ray Sundancer 470 2013 has a 55-hp advantage over the Sea Ray 390 Sundancer 2010's 425-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sea Ray Sundancer 470 2013 carries 35 gallons versus 25 gallons in the Sea Ray 390 Sundancer 2010. 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 Sundancer 470 2013 is rated for 14 passengers, while the Sea Ray 390 Sundancer 2010 caps at 11. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray Sundancer 470 2013 could be the deciding factor.