The Campion 602i SC 2005 vs Campion Allante 505ob 2012 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 Campion Allante 505ob 2012 measures 16,6 feet overall (2012), giving it roughly 14,6 additional feet of deck space compared to the Campion 602i SC 2005 at 2,0 feet (2005). At 37 lbs and 128 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The power gap is worth calling out. Rated to 270 hp, the Campion 602i SC 2005 has a 145-hp advantage over the Campion Allante 505ob 2012's 125-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Campion Allante 505ob 2012 carries 24 gallons versus 6 gallons in the Campion 602i SC 2005. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 6 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
At this size, power-to-weight ratio matters more than outright horsepower. The Campion 602i SC 2005 comes in at 0 lbs per hp versus 1 lbs per hp for the Campion Allante 505ob 2012. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.
Bottom line: The Campion Allante 505ob 2012 at 16,6 ft is the right call if deck space, comfort, and entertaining are top of your list. The Campion 602i SC 2005 at 2,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.