When two boats share the same hull type — in this case both the Xpress 1650DB 2009 and the Xpress X21 2010 are modified vee designs with aluminum construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
Size is the most obvious dividing line here. The Xpress X21 2010 measures 21,0 feet overall (2010), giving it roughly 5,0 additional feet of deck space compared to the Xpress 1650DB 2009 at 16,0 feet (2009). Weight tells a clearer story for trailering families: the Xpress 1650DB 2009 tips the scales at 415 lbs — 257 lbs more than the Xpress X21 2010 at 158 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 250 hp, the Xpress X21 2010 has a 220-hp advantage over the Xpress 1650DB 2009's 30-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
Both boats are rated for 4 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: The Xpress X21 2010 at 21,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Xpress 1650DB 2009 at 16,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.