Both the Jetcraft 1825 Falcon 2012 and the Jetcraft 1925 Discovery 2008 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 - Jetcraft 1825 Falcon 2012 at 18,0 ft versus Jetcraft 1925 Discovery 2008 at 19,0 ft. Weight tells a clearer story for trailering families: the Jetcraft 1925 Discovery 2008 tips the scales at 1 345 lbs - 245 lbs less than the Jetcraft 1825 Falcon 2012 at 1 100 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 175 hp, the Jetcraft 1925 Discovery 2008 has a 60-hp advantage over the Jetcraft 1825 Falcon 2012's 115-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Jetcraft 1925 Discovery 2008 carries 35 gallons versus 20 gallons in the Jetcraft 1825 Falcon 2012. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 5 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 Jetcraft 1925 Discovery 2008 and its 175-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Jetcraft 1825 Falcon 2012 with its 115-hp rating is the more economical daily driver.