The Astondoa 66 Flybridge 2024 vs Astondoa AS5 2021 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 Astondoa 66 Flybridge 2024 measures 66,0 feet overall (2024), giving it roughly 9,2 additional feet of deck space compared to the Astondoa AS5 2021 at 56,9 feet (2021). Weight tells a clearer story for trailering families: the Astondoa 66 Flybridge 2024 tips the scales at 90 389 lbs — 25 507 lbs more than the Astondoa AS5 2021 at 64 882 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 725 hp, the Astondoa AS5 2021 has a 375-hp advantage over the Astondoa 66 Flybridge 2024's 350-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Astondoa 66 Flybridge 2024 carries 951 gallons versus 634 gallons in the Astondoa AS5 2021. 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 Astondoa 66 Flybridge 2024 is rated for 20 passengers, while the Astondoa AS5 2021 caps at 17. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Astondoa 66 Flybridge 2024 could be the deciding factor.
Bottom line: Choose the Astondoa 66 Flybridge 2024 if your priority is putting more people on the water — it handles 20 passengers and at 66,0 ft it has the deck room to back that rating up comfortably. The Astondoa AS5 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 17 that costs less to run day-to-day.