Yamaha
Yamaha Seascooter RDS300
$695
Best Sea Scooters · head-to-head
Yamaha Seascooter RDS300 vs Sea-Doo Seascooter GTI
A sourced, side-by-side comparison. Sea-Doo Seascooter GTI is cheaper at $449.99. Every spec and price links to its source.
Sea-Doo (BRP)
Sea-Doo Seascooter GTI
$449.99Cheaper
Which is better: the Yamaha Seascooter RDS300 or Sea-Doo Seascooter GTI?
The Sea-Doo Seascooter GTI wins 1 of the 1 specs we compare head to head; the other wins 0. The Sea-Doo Seascooter GTI is the cheaper at $449.99. The Sea-Doo Seascooter GTI both leads on specs and costs less — the straightforward pick.
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Key specs, head to head
The numbers that decide it, drawn to scale — longer bar wins, the accent bar is the stronger figure.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Yamaha Seascooter RDS300 |  Sea-Doo Seascooter GTI |
|---|---|---|
| US price | $695 | $449.99 |
| Brand | Yamaha | Sea-Doo (BRP) |
| Released | — | — |
| Max speed (km/h) | 4.8 | 4 |
| Runtime (min) | 90 | 120 |
| Max depth (m) | 30 | 30 |
| Thrust (kgf) | — | — |
| Battery (Wh) | 144 | 168 |
| Weight (kg) | 8.2 | 8.2 |
| Charge time (h) | 7 | — |
| Speed settings | 2 | 1 |
| Buoyancy | Removable/adjustable buoyancy chamber | Adjustable buoyancy |
Sources — Yamaha Seascooter RDS300: divers-supply.com (verified 2026-10-13). Sea-Doo Seascooter GTI: divers-supply.com (verified 2026-10-13).
What's the difference between the Yamaha Seascooter RDS300 and Sea-Doo Seascooter GTI?
Where the two actually differ on the specs we track (5 of 9). Matching specs are omitted.
- Max speed (km/h): Yamaha Seascooter RDS300 4.8 vs Sea-Doo Seascooter GTI 4
- Runtime (min): Yamaha Seascooter RDS300 90 vs Sea-Doo Seascooter GTI 120
- Battery (Wh): Yamaha Seascooter RDS300 144 vs Sea-Doo Seascooter GTI 168
- Speed settings: Yamaha Seascooter RDS300 2 vs Sea-Doo Seascooter GTI 1
- Buoyancy: Yamaha Seascooter RDS300 Removable/adjustable buoyancy chamber vs Sea-Doo Seascooter GTI Adjustable buoyancy