When two boats share the same hull type — in this case both the Blazer Boats 1500 Razor Flats 2010 and the Blazer Boats 1860 2012 are modified vee designs with composite 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 Blazer Boats 1860 2012 measures 18,5 feet overall (2012), giving it roughly 3,5 additional feet of deck space compared to the Blazer Boats 1500 Razor Flats 2010 at 15,0 feet (2010). At 65 lbs and 125 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The power gap is worth calling out. Rated to 90 hp, the Blazer Boats 1860 2012 has a 65-hp advantage over the Blazer Boats 1500 Razor Flats 2010's 25-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Blazer Boats 1500 Razor Flats 2010 carries 18 gallons versus 5 gallons in the Blazer Boats 1860 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 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 Blazer Boats 1860 2012 at 18,5 ft is the right call if deck space, comfort, and entertaining are top of your list. The Blazer Boats 1500 Razor Flats 2010 at 15,0 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.