Both the Voyager Marine All Welded Jons - SC 2012 and the Voyager Marine Series 5600 - 1256 2008 are flat-bottom designs, both built in aluminium, so the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
Size is the most obvious dividing line here. The Voyager Marine All Welded Jons - SC 2012 measures 19,9 feet overall (2012), giving it roughly 7,9 additional feet of deck space compared to the Voyager Marine Series 5600 - 1256 2008 at 12,0 feet (2008). Weight tells a clearer story for trailering families: the Voyager Marine All Welded Jons - SC 2012 tips the scales at 1 150 lbs - 1 005 lbs more than the Voyager Marine Series 5600 - 1256 2008 at 145 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 135 hp, the Voyager Marine All Welded Jons - SC 2012 has a 125-hp advantage over the Voyager Marine Series 5600 - 1256 2008's 10-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Voyager Marine All Welded Jons - SC 2012 is rated for 6 passengers, while the Voyager Marine Series 5600 - 1256 2008 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Voyager Marine All Welded Jons - SC 2012 could be the deciding factor.
Bottom line: Choose the Voyager Marine All Welded Jons - SC 2012 if your priority is putting more people on the water - it handles 6 passengers and at 19,9 ft it has the deck room to back that rating up comfortably. The Voyager Marine Series 5600 - 1256 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.