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Sea-Doo GTX Limited 300 vs. Kawasaki Ultra 310LX [Video]

Sea-Doo GTX Limited 300 vs. Kawasaki Ultra 310LX [Video]

The Kawasaki Ultra 310LX is the most luxurious touring Kawasaki jet ski, while the GTX Limited 300 is its Canadian competitor manufactured by Bombardier. Both come with a high-performance, supercharged engine, a stable and predictable touring hull, and a wide range of convenience features.

If you want to compare these machines head-to-head, you’ve come to the right place.

We at JetDrift have compiled all you need to know into this GTX Limited 300 vs. Ultra 310LX comparison post!

Sea-Doo GTX Limited 300 vs. Kawasaki Ultra 310LX

By the Numbers

Although both the Kawasaki Ultra 310LX and the Sea-Doo GTX Limited 300 are classed as luxury touring jet skis, there are many differences between them. The latter is known for its super-stable ST3 hull while the Kawasaki comes with more innovative features.

In terms of dimensions, the Kawasaki Ultra 300LX measures 140.9 inches in length, 47 inches in width, and 48.8 inches in height.

This new platform was designed from scratch and debuted for the 2022 season. Compared to its predecessor, this new high-end Kawasaki hull is larger, much more stable, and comes with an advanced top deck design.

The rival Sea-Doo GTX Limited 300 is built on the legendary ST3 hull, which offers industry-leading stability. Besides the entire GTX family, many other Sea-Doos come with this platform including the Fish Pro Trophy/Sport, Wake Pro, and Explorer Pro.

Compared to the Kawasaki, the Sea-Doo GTX is shorter and significantly wider, since it measures 135.9 inches in length, 49.4 inches in width, and 45.2 inches in height.

What’s more, the Sea-Doo is significantly lighter, since its dry weight is 849 pounds which translates to a curb weight of 974 pounds. In contrast, the Ultra 310LX weighs 950 pounds dry, and 1090 pounds fully loaded.

This huge Japanese jet ski comes with much larger capacities since it houses an industry-leading 21.1-gallon fuel tank and has an overall storage capacity of 44.5 gallons.

This storage area is split into a 32.8-gallon front storage, tiny wet storage units nestled in the rear side of the deck, and two large “gullwing” gloveboxes on both sides of the ski. These storage units are designed to carry 10.6 gallons of gear and house a dry phone box with a USB charger and a 12V outlet.

Even though the overall storage capacity of the GTX Limited is only 26.1 gallons, it includes a special easy-access center storage. This design allows you to reach your gear without getting off the seat, which makes life easier out on open waters.

As far as power sources go, the GTX Limited 300 is engineered by a supercharged, 4-stroke, 1630cc, fuel-injected, Rotax triple rated at 300 HP.

The Kawasaki doesn’t need to be ashamed either when it comes to power, since it houses a supercharged, 1492 cc, fuel-injected, 4-cylinder, 310 HP Kawasaki engine inherited from ZX-R sportbikes.

Both engines transfer power towards an axial-flow, single-stage jet pump.


Both the Sea-Doo and the Kawasaki come with a wide range of features as standard, including:

  • Electric brake and reverse
  • Color LCD dashboard with Bluetooth connectivity
  • LinQ / MultiMount connection cleats
  • Comfortable seatfor 3 riders
  • High-performance sponsons
  • Bow storage compartment
  • Glovebox
  • Throttle-by-wire
  • Cruise control
  • Launch control
  • Riding modes
  • No-wake mode
  • Dual mirrors
  • Tow hook
  • Mooring cleats
  • Small windshield
  • Reboarding step
  • Audio system
  • Adjustable trim system
  • And more
Both skis come with an electric brake and reverse, which is named KSRD on the Kawasaki and iBR on the Sea-Doo.


Compared to the Sea-Doo, the Ultra 310LX houses some unique features, including:

  • Integrated cup holders
  • Adjustable luxury seat
  • Dual “gullwing” gloveboxes
  • Rearview camera
  • Multi-Mount System for GPS, Fishfinder, Camera, etc.
  • LED running lights in the front bumper
  • Kawasaki Splash Deflectors (KSD)
  • Rear wet storage (0.7 gals.)
  • Multi-mount bars
We also have to mention the Sea-Doo-exclusive features of the GTX Limited 300, which include:

The key advantage of Sea-Doo’s Eroglock seat is its stepped design. It’s narrow at the front and widens towards the stern ensuring a natural riding position.

The rear portion of the saddle is removable for a larger swim platform. On top of that, the small LinQ cooler can be planted between the two seat pieces, thereby creating a small picnic table for two.

Performance and Handling

Both the Kawasaki Ultra 310LX and the GTX Limited 300 are designed on a large and stable touring platform.

Unlike race-intended performance jet skis, these massive hulls ensure predictable and comfortable rides even on rough waters.The Sea-Doo comes with the legendary ST3 platform, which the manufacturer claims is the most stable jet ski hull:

Even though the GTX Limited 300 is tuned for comfort rather than performance, it can accelerate from 5 to 60 mph in 4 seconds while the Kawasaki can do the same run in about 4.5 seconds.

The top speed of both skis is limited to 67 mph, but with a light load and under ideal conditions they can even hit 68-70 mph.

GTX Limited 300 vs. Ultra 310LX Comparison Chart

For your convenience, we’ve compiled the key specs of these skis into this GTX Limited 300 vs. Kawasaki Ultra 310LX comparison chart:
SpecsGTX Limited 300Ultra 310LX
CategoryLuxury / TouringLuxury
Displacement (cc)16301492
Brake & ReverseYesYes
Length (in)135.9140.9
Width (in)49.447
Dry Weight (lbs)849950
Curb Weight (lbs)9741090
Fuel Capacity (gal)18.521.1
Storage Capacity (gal)26.144.5
Weight Capacity (lbs)600496
Rider capacity33
This chart is for informational purposes only! For exact specifications, please refer to the factory manual.


The Kawasaki Ultra 310LX and the Sea-Doo GTX Limited 300 are among the most luxurious touring jet skis in the marketplace. Like the competitor Yamaha FX Limited SVHO, they come with a supercharged engine, a large and stable hull, and many convenience features.

Each of these models has its key pros and cons, which are as follows:Pros of the Kawasaki Ultra 310LX:

  • More luxury features (headlights, rearview camera, etc.)
  • Unique gullwing gloveboxes (capacity: 10.6 gallons)
  • Larger storage capacity (44.5 vs. 26.1 gals.)
  • More horsepower (310 vs. 300 HP)
Pros of the Sea-Doo GTX Limited 300:

  • Lighter weight (849 vs. 950 lbs.)
  • Quicker acceleration (4 vs. 4.5 sec. on 0-60 mph)
  • Greater weight capacity (600 vs. 496 lbs.)
  • Ergolock seat
  • Easy-access center storage
  • ST3 hull design
  • Closed-loop cooling system
  • iDF Debris Free System
If you are trying to decide between these two skis, don’t hesitate to test ride both to taste the differences.

But as a final word, you can’t go wrong with either!