When two boats share the same hull type — in this case both the Zodiac 350 TC4 2009 and the Zodiac 650 2009 are inflatable rigid designs with 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?
The Zodiac 650 2009 tops out at 175 hp. Engine specs for the Zodiac 350 TC4 2009 aren't listed — confirm with a dealer before selecting an outboard.
For family outings this is probably the sharpest distinction between the two. The Zodiac 650 2009 is rated for 13 passengers, while the Zodiac 350 TC4 2009 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Zodiac 650 2009 could be the deciding factor.
Bottom line: Choose the Zodiac 650 2009 if your priority is putting more people on the water — it handles 13 passengers and at 21,3 ft it has the deck room to back that rating up comfortably. The Zodiac 350 TC4 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.