The Hobie Cat Bi - Plane - Custom Build 2020 vs Hobie Cat Hobie Cat 21 SE SE 1987 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
For family outings this is probably the sharpest distinction between the two. The Hobie Cat Hobie Cat 21 SE SE 1987 is rated for 6 passengers, while the Hobie Cat Bi - Plane - Custom Build 2020 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Hobie Cat Hobie Cat 21 SE SE 1987 could be the deciding factor.
The Hobie Cat Hobie Cat 21 SE SE 1987 has a documented displacement of 639 lbs. Displacement data wasn't available for the other boat in this comparison.
Sailboat comparisons often come down to details that specs don't fully capture — the quality of the standing rigging, the layout of the cockpit, and how the boat feels on a beat in 20 knots. A sea trial on both is strongly recommended.
The Hobie Cat Hobie Cat 21 SE SE 1987 is trailerable — a genuine advantage for sailors who prefer to keep their boat at home or explore multiple sailing venues.
Bottom line: The Hobie Cat Hobie Cat 21 SE SE 1987 at 21,4 ft offers more living space, greater range, and a more substantial offshore capability. The Hobie Cat Bi - Plane - Custom Build 2020 at 18,0 ft is the easier, lower-cost option — simpler to crew and a strong choice for coastal and day sailing.