Boost Fin Plus — SUP Edition

• Boost Fin Plus
• Longboard adapter (US box)
• Boost Remote
• 100-240V Wall Charger (AU, US & EU plugs)
• Mounting Kit

All packages include a Longboard adapter by default. Selecting another variant of adapter adds it as an extra.

The hydrodynamic design ensures smooth gliding with minimal drag, so you’ll only feel extra power, not extra weight. Whether surfing or paddleboarding, your ride remains stable, responsive, and effortless. The additional battery means longer sessions without sacrificing control.

The Long Range package includes a Longboard Adapter, which fits most boards with a US box mount. If your board uses a different fin box system, additional adapters are available separately to ensure compatibility with a wide range of surfboards and paddleboards.

 In Surfing Assist (Long mode), Boost Fin Long Range can run for up to 180 minutes, but this refers to total session time, not continuous motor use. The system is optimized for real surfing conditions, where power is used only when needed:

• Paddling to the lineup – 3–6 minutes of boost.
• Waiting for a wave – 3–7 minutes with no power use.
• Catching a wave – a short 7–10 second boost.

By using energy efficiently, Boost Fin Long Range extends your session, helping you catch more waves with less effort.

Note: In the Boost Fin app, you’ll find two modes:

1. Short mode - which you can SETUP

2. Long mode - you usually select from the menu

Because you'll wear the button on the wrist (which most of you would do), you can shut it off manually anytime. So don't worry, you won't have to chase your board.

The Boost Fin doesn't make any loud noise. We tested it out with surfers paddling 3ft away from the Boost Fin and they couldn't hear a thing. All they did was wondering how the heck was that surfer paddling so fast!

Later tests determined that sharks are attracted by frequencies ranging between approximately 10 and 800 Hz while we are using 30Mhz which equals 30000000 Hz. Plus you can also use a Shark Band bracelet for extra safety.

The device is switched on and off by bringing the screwdriver handle with a magnet into the light indication area. The Hall sensor HS1 is responsible for turning on, and HS2 for turning off. A timer shutdown is also possible, the default value is 30 min, which can be configured via the app. The device also turns off automatically when the battery is completely discharged.

After successfully turning on the device, the motor is controlled by a radio remote control with two buttons. The remote can go on your wrist, shoulder, or paddle if you're on a SUP. Button A turns on the Short Boost mode, button B turns on the Long Boost mode. All parameters of these modes can be configured through the mobile app, which can be downloaded here. Pressing any of the buttons again turns off the motor.

Boost Fin meets the IPX8 waterproof standard (up to 10m / 32'9").

Each part and component exposed to saltwater are salt fog endurance resistant and certified for saltwater operation. All plugs, connectors, and other electrical contacted surfaces are covered with rubber plugs to prevent them from water.

Seawater can enter the charger port without any damage - there's a diode that essentially acts as a one-way switch for current. It allows current to flow easily in one direction, but severely restricts current from flowing in the opposite direction