The Zodiac Yachtline 420 2013 vs Zodiac Zoom 340 S 2007 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.
On paper these two are close siblings in the size department — Zodiac Yachtline 420 2013 at 13,8 ft versus Zodiac Zoom 340 S 2007 at 11,0 ft. Weight tells a clearer story for trailering families: the Zodiac Yachtline 420 2013 tips the scales at 602 lbs — 494 lbs more than the Zodiac Zoom 340 S 2007 at 108 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 50 hp, the Zodiac Yachtline 420 2013 has a 40-hp advantage over the Zodiac Zoom 340 S 2007's 10-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 Yachtline 420 2013 is rated for 6 passengers, while the Zodiac Zoom 340 S 2007 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Zodiac Yachtline 420 2013 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Zodiac Zoom 340 S 2007 comes in at 11 lbs per hp versus 12 lbs per hp for the Zodiac Yachtline 420 2013. 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.
The Zodiac Yachtline 420 2013 has a documented top speed of 37 mph. Speed data wasn't available for the other model.
The Zodiac Yachtline 420 2013 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Zodiac Zoom 340 S 2007 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.
Bottom line: Choose the Zodiac Yachtline 420 2013 if your priority is putting more people on the water — it handles 6 passengers and at 13,8 ft it has the deck room to back that rating up comfortably. The Zodiac Zoom 340 S 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.