When two boats share the same hull type — in this case both the Zodiac Medline II 2010 and the Zodiac Pro Classic 650 2013 are deep 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?
On paper these two are close siblings in the size department — Zodiac Medline II 2010 at 19,7 ft versus Zodiac Pro Classic 650 2013 at 20,7 ft. Weight tells a clearer story for trailering families: the Zodiac Medline II 2010 tips the scales at 1 521 lbs — 264 lbs more than the Zodiac Pro Classic 650 2013 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 2010 and 150 hp for the Zodiac Pro Classic 650 2013. 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.
At this size, power-to-weight ratio matters more than outright horsepower. The Zodiac Pro Classic 650 2013 comes in at 8 lbs per hp versus 10 lbs per hp for the Zodiac Medline II 2010. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.
Top speed is rated at 85 mph for the Zodiac Pro Classic 650 2013 and 46 mph for the Zodiac Medline II 2010.
The Zodiac Pro Classic 650 2013 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Zodiac Medline II 2010 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.
Bottom line: The Zodiac Medline II 2010 and Zodiac Pro Classic 650 2013 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.