The Key West Boats 189FS 2021 vs Key West Boats 239 FS 2016 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.
The power gap is worth calling out. Rated to 200 hp, the Key West Boats 239 FS 2016 has a 85-hp advantage over the Key West Boats 189FS 2021's 115-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 4 gal and 1 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Key West Boats 239 FS 2016 is rated for 7 passengers, while the Key West Boats 189FS 2021 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Key West Boats 239 FS 2016 could be the deciding factor.
Bottom line: Choose the Key West Boats 239 FS 2016 if your priority is putting more people on the water — it handles 7 passengers and at 24,0 ft it has the deck room to back that rating up comfortably. The Key West Boats 189FS 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.