Both the Xpress H51 2008 and the Xpress X19 2013 are modified-V designs, both built in aluminium, so 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?
On paper these two are close siblings in the size department - Xpress H51 2008 at 17,0 ft versus Xpress X19 2013 at 19,0 ft. Weight tells a clearer story for trailering families: the Xpress X19 2013 tips the scales at 1 390 lbs - 485 lbs less than the Xpress H51 2008 at 905 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 Xpress X19 2013 has a 60-hp advantage over the Xpress H51 2008's 90-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: Performance buyers should lean toward the Xpress X19 2013 and its 150-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Xpress H51 2008 with its 90-hp rating is the more economical daily driver.