When two boats share the same hull type — in this case both the Beavertail Phantom 2012 and the Beavertail Stealth 1200 2012 are catamaran designs with plastic 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 — Beavertail Phantom 2012 at 9,0 ft versus Beavertail Stealth 1200 2012 at 12,0 ft. At 55 lbs and 1 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.
For family outings this is probably the sharpest distinction between the two. The Beavertail Stealth 1200 2012 is rated for 3 passengers, while the Beavertail Phantom 2012 caps at 2. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beavertail Stealth 1200 2012 could be the deciding factor.
Bottom line: Choose the Beavertail Stealth 1200 2012 if your priority is putting more people on the water — it handles 3 passengers and at 12,0 ft it has the deck room to back that rating up comfortably. The Beavertail Phantom 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 2 that costs less to run day-to-day.