When two boats share the same hull type — in this case both the Bennington 2275QXi-S Series 2009 and the Bennington 23 SL I/O 2011 are pontoon 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?
On paper these two are close siblings in the size department — Bennington 2275QXi-S Series 2009 at 22,0 ft versus Bennington 23 SL I/O 2011 at 22,3 ft. At 2 724 lbs and 2 811 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 32 hp, the Bennington 23 SL I/O 2011 has a 30-hp advantage over the Bennington 2275QXi-S Series 2009's 2-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 Bennington 23 SL I/O 2011 is rated for 12 passengers, while the Bennington 2275QXi-S Series 2009 caps at 2. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Bennington 23 SL I/O 2011 could be the deciding factor.
Both are 23-tube and 3-tube pontoon designs respectively. Tube diameter and gauge affect stability and load capacity — more so than most buyers realize when comparing on paper.
Bottom line: Choose the Bennington 23 SL I/O 2011 if your priority is putting more people on the water — it handles 12 passengers and at 22,3 ft it has the deck room to back that rating up comfortably. The Bennington 2275QXi-S Series 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 2 that costs less to run day-to-day.