When two boats share the same hull type — in this case both the Gillgetter 613 Tiller 2010 and the Gillgetter 615 Fish N Cruise 2010 are pontoon 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?
On paper these two are close siblings in the size department — Gillgetter 613 Tiller 2010 at 13,0 ft versus Gillgetter 615 Fish N Cruise 2010 at 15,0 ft. Weight tells a clearer story for trailering families: the Gillgetter 615 Fish N Cruise 2010 tips the scales at 825 lbs — 230 lbs less than the Gillgetter 613 Tiller 2010 at 595 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.
Both boats share a closely matched power ceiling — 15 hp for the Gillgetter 613 Tiller 2010 and 25 hp for the Gillgetter 615 Fish N Cruise 2010. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.
For family outings this is probably the sharpest distinction between the two. The Gillgetter 615 Fish N Cruise 2010 is rated for 6 passengers, while the Gillgetter 613 Tiller 2010 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Gillgetter 615 Fish N Cruise 2010 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Gillgetter 615 Fish N Cruise 2010 comes in at 33 lbs per hp versus 40 lbs per hp for the Gillgetter 613 Tiller 2010. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.
One place where both boats are genuinely identical is tube construction: both run 2 aluminum tubes at 19" diameter. That shared spec means stability and buoyancy characteristics are closely matched — the ride difference you'll feel between them comes primarily from deck length, weight distribution, and motor choice.
Bottom line: Choose the Gillgetter 615 Fish N Cruise 2010 if your priority is putting more people on the water — it handles 6 passengers and at 15,0 ft it has the deck room to back that rating up comfortably. The Gillgetter 613 Tiller 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.