The Odyssey 725CL TT I/O 2006 vs Odyssey Millennium II 2105M2 2004 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.
Size is the most obvious dividing line here. The Odyssey 725CL TT I/O 2006 measures 25,0 feet overall (2006), giving it roughly 23,0 additional feet of deck space compared to the Odyssey Millennium II 2105M2 2004 at 2,0 feet (2004). Weight tells a clearer story for trailering families: the Odyssey 725CL TT I/O 2006 tips the scales at 293 lbs — 118 lbs more than the Odyssey Millennium II 2105M2 2004 at 175 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 Odyssey 725CL TT I/O 2006 carries a rated maximum of 425 hp. Engine data for the Odyssey Millennium II 2105M2 2004 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.
Both boats are rated for 14 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
The Odyssey 725CL TT I/O 2006 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Odyssey Millennium II 2105M2 2004 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.
Bottom line: The Odyssey 725CL TT I/O 2006 at 25,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Odyssey Millennium II 2105M2 2004 at 2,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.