The AB-Inflatables Oceanus 19 VST 2005 vs AB-Inflatables Oceanus 21 VST 2017 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.
On paper these two are close siblings in the size department — AB-Inflatables Oceanus 19 VST 2005 at 19,0 ft versus AB-Inflatables Oceanus 21 VST 2017 at 21,4 ft. Weight tells a clearer story for trailering families: the AB-Inflatables Oceanus 21 VST 2017 tips the scales at 1 808 lbs — 556 lbs less than the AB-Inflatables Oceanus 19 VST 2005 at 1 252 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.
The power gap is worth calling out. Rated to 150 hp, the AB-Inflatables Oceanus 21 VST 2017 has a 35-hp advantage over the AB-Inflatables Oceanus 19 VST 2005's 115-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the AB-Inflatables Oceanus 21 VST 2017 carries 63 gallons versus 44 gallons in the AB-Inflatables Oceanus 19 VST 2005. 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 AB-Inflatables Oceanus 21 VST 2017 is rated for 6 passengers, while the AB-Inflatables Oceanus 19 VST 2005 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the AB-Inflatables Oceanus 21 VST 2017 could be the deciding factor.
Bottom line: Choose the AB-Inflatables Oceanus 21 VST 2017 if your priority is putting more people on the water — it handles 6 passengers and at 21,4 ft it has the deck room to back that rating up comfortably. The AB-Inflatables Oceanus 19 VST 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.