Detailed Evaluation & Buyer Recommendation
Nautic Star 2100 Nautic Bay 2005 vs Nautic Star 251 HYBRID 2021 — Same Brand, Different Boat
The Nautic Star 2100 Nautic Bay 2005 vs Nautic Star 251 HYBRID 2021 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.
The power gap is worth calling out. Rated to 300 hp, the Nautic Star 251 HYBRID 2021 has a 100-hp advantage over the Nautic Star 2100 Nautic Bay 2005's 200-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Nautic Star 251 HYBRID 2021 carries 75 gallons versus 49 gallons in the Nautic Star 2100 Nautic Bay 2005. 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 Nautic Star 2100 Nautic Bay 2005 is rated for 8 passengers, while the Nautic Star 251 HYBRID 2021 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Nautic Star 2100 Nautic Bay 2005 could be the deciding factor.
Bottom line: Choose the Nautic Star 2100 Nautic Bay 2005 if your priority is putting more people on the water — it handles 8 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Nautic Star 251 HYBRID 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.
General Boat Info
MakeNautic Star
Makenot available
Model2100 Nautic Bay
Modelnot available
Model Year2005
Model Yearnot available
Measurements / Dimensions
Beam92 in
Beamnot available
Beam - Meters2.34
Beam - Metersnot available
Beam - Inches92
Beam - Inchesnot available
Depth - Detail18 in
Depth - Detailnot available
Depth - Centimeters45.72
Depth - Centimetersnot available
Depth - Inches18
Depth - Inchesnot available
Draft [max] - Detail11 in
Draft [max] - Detailnot available
Draft [max] - Meters0.28
Draft [max] - Metersnot available
Draft [max] - Inches11
Draft [max] - Inchesnot available
Weight - Detail1,550 lbs. (approximate)
Weight - Detailnot available
Weight - kg703.07
Weight - kgnot available
Weight - lbs.155
Weight - lbs.not available
Height [transom]25 in
Height [transom]not available
Length - Feet21
Length - Feet25
Length overall - Detail21 ft. 0 in
Length overall - Detail25.00 ft
Length overall - Meters6.4
Length overall - Meters7.62
Length overall - Inches252
Length overall - Inches300
Draft Minnot available
Draft Min1.25 ft
Engine and Drivetrain
Fuel tank capacity - Detail49 gal
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters185.49
Fuel tank capacity - Liters283.91
Fuel tank capacity - Gal49
Fuel tank capacity - Gal75
Engine max200 hp
Engine maxnot available
Engine makenot available
Engine makeYamaha
Horsepowernot available
Horsepower300 hp
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeoutboard
Operational Info
Maximum capacity1,200 lbs
Maximum capacitynot available
Maximum people8
Maximum peoplenot available
Boat typenot available
Boat typePower