The Campion LS 645i BR 2005 vs Campion S 595i BR 2008 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.
On paper these two are close siblings in the size department - Campion LS 645i BR 2005 at 21,0 ft versus Campion S 595i BR 2008 at 21,0 ft. Weight tells a clearer story for trailering families: the Campion LS 645i BR 2005 tips the scales at 3 700 lbs - 300 lbs more than the Campion S 595i BR 2008 at 3 400 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.
Both boats share a closely matched power ceiling - 320 hp for the Campion LS 645i BR 2005 and 320 hp for the Campion S 595i BR 2008. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Both carry nearly identical fuel loads - 51 gal and 53 gal - so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Campion S 595i BR 2008 is rated for 8 passengers, while the Campion LS 645i BR 2005 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Campion S 595i BR 2008 could be the deciding factor.
Bottom line: Choose the Campion S 595i BR 2008 if your priority is putting more people on the water - it handles 8 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Campion LS 645i BR 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.