When two boats share the same hull type — in this case both the SunChaser Oasis 820 FNC 2011 and the SunChaser Oasis 822 4-PT 2013 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?
Size is the most obvious dividing line here. The SunChaser Oasis 822 4-PT 2013 measures 23,8 feet overall (2013), giving it roughly 3,6 additional feet of deck space compared to the SunChaser Oasis 820 FNC 2011 at 20,3 feet (2011). At 175 lbs and 185 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.
Both boats share a closely matched power ceiling — 90 hp for the SunChaser Oasis 820 FNC 2011 and 90 hp for the SunChaser Oasis 822 4-PT 2013. 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.
Both boats are rated for 1 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 SunChaser Oasis 822 4-PT 2013 at 23,8 ft is the right call if deck space, comfort, and entertaining are top of your list. The SunChaser Oasis 820 FNC 2011 at 20,3 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.