The Sealegs 3.8M Tender 2022 vs Sealegs 7.5M Amphibious RIB 2020 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.
Size is the most obvious dividing line here. The Sealegs 7.5M Amphibious RIB 2020 measures 24,1 feet overall (2020), giving it roughly 11,3 additional feet of deck space compared to the Sealegs 3.8M Tender 2022 at 12,8 feet (2022). Weight tells a clearer story for trailering families: the Sealegs 7.5M Amphibious RIB 2020 tips the scales at 3 527 lbs — 2 315 lbs less than the Sealegs 3.8M Tender 2022 at 1 212 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 power gap is worth calling out. Rated to 200 hp, the Sealegs 7.5M Amphibious RIB 2020 has a 160-hp advantage over the Sealegs 3.8M Tender 2022's 40-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sealegs 7.5M Amphibious RIB 2020 carries 48 gallons versus 7 gallons in the Sealegs 3.8M Tender 2022. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Sealegs 7.5M Amphibious RIB 2020 is rated for 7 passengers, while the Sealegs 3.8M Tender 2022 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sealegs 7.5M Amphibious RIB 2020 could be the deciding factor.
Bottom line: Choose the Sealegs 7.5M Amphibious RIB 2020 if your priority is putting more people on the water — it handles 7 passengers and at 24,1 ft it has the deck room to back that rating up comfortably. The Sealegs 3.8M Tender 2022 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.