Matching a inflatable rigid Zodiac Pro 850 2010 against a inflatable non rigid Zodiac Zoom SP 400 ALU 2013 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

Size is the most obvious dividing line here. The Zodiac Pro 850 2010 measures 27,9 feet overall (2010), giving it roughly 14,8 additional feet of deck space compared to the Zodiac Zoom SP 400 ALU 2013 at 13,1 feet (2013). Weight tells a clearer story for trailering families: the Zodiac Pro 850 2010 tips the scales at 2 976 lbs — 2 789 lbs more than the Zodiac Zoom SP 400 ALU 2013 at 187 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 power gap is worth calling out. Rated to 300 hp, the Zodiac Pro 850 2010 has a 275-hp advantage over the Zodiac Zoom SP 400 ALU 2013's 25-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 Zodiac Pro 850 2010 is rated for 10 passengers, while the Zodiac Zoom SP 400 ALU 2013 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Zodiac Pro 850 2010 could be the deciding factor.