The Cobia Boats 21 Bay 2010 vs Cobia Boats 210 WA 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.
Size is the most obvious dividing line here. The Cobia Boats 21 Bay 2010 measures 21,1 feet overall (2010), giving it roughly 19,1 additional feet of deck space compared to the Cobia Boats 210 WA 2007 at 2,0 feet (2007). Weight tells a clearer story for trailering families: the Cobia Boats 21 Bay 2010 tips the scales at 205 lbs — 171 lbs more than the Cobia Boats 210 WA 2007 at 34 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 — 200 hp for the Cobia Boats 21 Bay 2010 and 200 hp for the Cobia Boats 210 WA 2007. 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 carry nearly identical fuel loads — 6 gal and 9 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Cobia Boats 210 WA 2007 is rated for 6 passengers, while the Cobia Boats 21 Bay 2010 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Cobia Boats 210 WA 2007 could be the deciding factor.
Bottom line: Choose the Cobia Boats 210 WA 2007 if your priority is putting more people on the water — it handles 6 passengers and at 2,0 ft it has the deck room to back that rating up comfortably. The Cobia Boats 21 Bay 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 1 that costs less to run day-to-day.