The Donzi 28 ZX 2006 vs Donzi 35 ZF Open 2013 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 Donzi 35 ZF Open 2013 measures 33,3 feet overall (2013), giving it roughly 6,3 additional feet of deck space compared to the Donzi 28 ZX 2006 at 27,0 feet (2006). Weight tells a clearer story for trailering families: the Donzi 28 ZX 2006 tips the scales at 655 lbs — 579 lbs more than the Donzi 35 ZF Open 2013 at 76 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.

Both boats share a closely matched power ceiling — 700 hp for the Donzi 28 ZX 2006 and 700 hp for the Donzi 35 ZF Open 2013. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Donzi 28 ZX 2006 carries 94 gallons versus 29 gallons in the Donzi 35 ZF Open 2013. 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 Donzi 35 ZF Open 2013 is rated for 10 passengers, while the Donzi 28 ZX 2006 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Donzi 35 ZF Open 2013 could be the deciding factor.