The Azimut Yachts Atlantis 50 2009 vs Azimut Yachts S77 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.

Size is the most obvious dividing line here. The Azimut Yachts S77 2017 measures 77,4 feet overall (2017), giving it roughly 27,4 additional feet of deck space compared to the Azimut Yachts Atlantis 50 2009 at 50,0 feet (2009). Weight tells a clearer story for trailering families: the Azimut Yachts S77 2017 tips the scales at 127 868 lbs — 85 981 lbs less than the Azimut Yachts Atlantis 50 2009 at 41 887 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 900 hp, the Azimut Yachts S77 2017 has a 465-hp advantage over the Azimut Yachts Atlantis 50 2009's 435-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Azimut Yachts S77 2017 carries 1 056 gallons versus 29 gallons in the Azimut Yachts Atlantis 50 2009. 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 Azimut Yachts S77 2017 is rated for 23 passengers, while the Azimut Yachts Atlantis 50 2009 caps at 15. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Azimut Yachts S77 2017 could be the deciding factor.