The Odyssey 175GS 2005 vs Odyssey 722C 2006 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.
The power gap is worth calling out. Rated to 115 hp, the Odyssey 722C 2006 has a 25-hp advantage over the Odyssey 175GS 2005's 90-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 Odyssey 722C 2006 is rated for 12 passengers, while the Odyssey 175GS 2005 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Odyssey 722C 2006 could be the deciding factor.
The Odyssey 722C 2006 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Odyssey 175GS 2005 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.
Bottom line: Choose the Odyssey 722C 2006 if your priority is putting more people on the water — it handles 12 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Odyssey 175GS 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.