When two boats share the same hull type — in this case both the Zodiac 420 TC4 2009 and the Zodiac Cadet Compact 250 2011 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 Cadet Compact 250 2011 tops out at 8 hp. Engine specs for the Zodiac 420 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 420 TC4 2009 is rated for 6 passengers, while the Zodiac Cadet Compact 250 2011 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Zodiac 420 TC4 2009 could be the deciding factor.
The Zodiac Cadet Compact 250 2011 has a documented top speed of 17 mph. Speed data wasn't available for the other model.
Bottom line: Choose the Zodiac 420 TC4 2009 if your priority is putting more people on the water — it handles 6 passengers and at 13,7 ft it has the deck room to back that rating up comfortably. The Zodiac Cadet Compact 250 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.