When two boats share the same hull type — in this case both the Zodiac Medline II 2008 and the Zodiac Pro 650 2011 are inflatable rigid designs with rigid inflatable 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 — Zodiac Medline II 2008 at 19,0 ft versus Zodiac Pro 650 2011 at 20,7 ft. Weight tells a clearer story for trailering families: the Zodiac Medline II 2008 tips the scales at 1 432 lbs — 175 lbs more than the Zodiac Pro 650 2011 at 1 257 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.

Both boats share a closely matched power ceiling — 150 hp for the Zodiac Medline II 2008 and 150 hp for the Zodiac Pro 650 2011. 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.

Both boats are rated for 5 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.