When two boats share the same hull type — in this case both the Frontier Boats Frontier 2104 2013 and the Frontier Boats Frontier Open Series 2013 are modified vee designs with fiberglass 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 Frontier Boats Frontier 2104 2013 measures 21,3 feet overall (2013), giving it roughly 3,2 additional feet of deck space compared to the Frontier Boats Frontier Open Series 2013 at 18,2 feet (2013). Weight tells a clearer story for trailering families: the Frontier Boats Frontier 2104 2013 tips the scales at 1 795 lbs — 1 784 lbs more than the Frontier Boats Frontier Open Series 2013 at 11 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 Frontier Boats Frontier Open Series 2013 tops out at 115 hp. Engine specs for the Frontier Boats Frontier 2104 2013 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Frontier Boats Frontier Open Series 2013 carries 22 gallons versus 5 gallons in the Frontier Boats Frontier 2104 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 6 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 Frontier Boats Frontier 2104 2013 at 21,3 ft is the right call if deck space, comfort, and entertaining are top of your list. The Frontier Boats Frontier Open Series 2013 at 18,2 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.