When two boats share the same hull type — in this case both the Moomba Mobius LS 2009 and the Moomba Outback 2009 are modified vee designs with fiberglass 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 Moomba Mobius LS 2009 measures 21,0 feet overall (2009), giving it roughly 19,0 additional feet of deck space compared to the Moomba Outback 2009 at 2,0 feet (2009). At 315 lbs and 275 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.
Both boats share a closely matched power ceiling — 325 hp for the Moomba Mobius LS 2009 and 325 hp for the Moomba Outback 2009. 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. Fuel capacity breaks the other way: the Moomba Mobius LS 2009 carries 34 gallons versus 28 gallons in the Moomba Outback 2009. 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 Moomba Mobius LS 2009 is rated for 13 passengers, while the Moomba Outback 2009 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Moomba Mobius LS 2009 could be the deciding factor.
Bottom line: Choose the Moomba Mobius LS 2009 if your priority is putting more people on the water — it handles 13 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Moomba Outback 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 1 that costs less to run day-to-day.