The Sea Fox 226 Commander 2015 vs Sea Fox 288 Commander 2018 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 300 hp, the Sea Fox 288 Commander 2018 has a 100-hp advantage over the Sea Fox 226 Commander 2015's 200-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sea Fox 288 Commander 2018 carries 185 gallons versus 101 gallons in the Sea Fox 226 Commander 2015. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Sea Fox 288 Commander 2018 is rated for 8 passengers, while the Sea Fox 226 Commander 2015 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Fox 288 Commander 2018 could be the deciding factor.
Bottom line: Choose the Sea Fox 288 Commander 2018 if your priority is putting more people on the water — it handles 8 passengers and at 28,0 ft it has the deck room to back that rating up comfortably. The Sea Fox 226 Commander 2015 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.