When two boats share the same hull type — in this case both the Voyager Marine 2070SC 2010 and the Voyager Marine Series 5600 - 1256 2009 are flat designs with aluminum construction — 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 2070SC 2010 measures 19,9 feet overall (2010), giving it roughly 7,9 additional feet of deck space compared to the Voyager Marine Series 5600 - 1256 2009 at 12,0 feet (2009). At 115 lbs and 145 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 135 hp, the Voyager Marine 2070SC 2010 has a 125-hp advantage over the Voyager Marine Series 5600 - 1256 2009'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 2070SC 2010 is rated for 6 passengers, while the Voyager Marine Series 5600 - 1256 2009 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 2070SC 2010 could be the deciding factor.
Bottom line: Choose the Voyager Marine 2070SC 2010 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 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.