Asiwo U1 Universal Underwater Scooter

Asiwo U1 Universal Underwater Scooter: A Multi-Use DPV for Recreational Divers and Water Sport Enthusiasts

The Asiwo U1 is a diver propulsion vehicle (DPV), a battery-powered scooter that pulls you through the water so you can cover more ground with less effort.

What makes this one unusual is its dual purpose. Most underwater scooters are built purely for diving. The U1 is designed to mount onto a stand-up paddleboard (SUP) as well, which puts it in a different category: useful both above and below the surface.

If you are a recreational diver who also spends time on a SUP, kayak, or inflatable, this could replace two pieces of kit. If you are purely a diver looking for a dedicated DPV, it is still worth reading through.

Who This Is For

The U1 suits a recreational diver who wants to explore more of a reef or wreck on a single dive without swimming the whole distance.

It also suits someone who is not a diver at all but wants propulsion for surface water activities like SUP or snorkeling. The manufacturer lists compatibility with 99% of boards, making it broadly adaptable.

It is not aimed at technical divers doing long penetrations or deep deco dives. The depth rating and run times are well matched to recreational limits, and the feature set reflects that.

Speed Modes and Run Time

The U1 runs three speed modes. Choosing the right one comes down to what you are doing and how long you need the battery to last.

Slow mode gives you the most useful dive time. A full hour of gentle assistance is enough to cover real ground on a reef dive without burning through your air chasing the scooter.

Fast mode delivers the full 1100W motor output and 37.47 lbsf of thrust, but at 15 to 18 minutes you will likely run out of battery before you run out of air. Use it in short bursts or when you need to push against a current.

Medium mode is the practical middle ground for most underwater use: enough pull to feel meaningful, with around half an hour of run time.

Depth Rating

The U1 is rated to 50 metres (164 feet). That covers the full recreational diving range, including the 40-metre limit most agencies set for advanced open water certification. You will not outrun the scooter's depth rating on a recreational dive.

Size, Weight, and Portability

At 13.2 lbs (6 kg) including the battery, the U1 is on the lighter end for a 1100W scooter. That matters when you are lugging gear from a car park to a shore entry, or loading a boat.

The main body measures approximately 5 x 12.7 x 15.5 inches (126 x 323 x 394 mm). It is compact enough to manage with one hand in the water.

The battery is detachable, which has two practical advantages: you can charge it separately without moving the whole unit, and if you ever need a second battery for back-to-back dives, swapping it out is straightforward.

Control

The U1 includes a smartwatch-style controller that lets you switch between speed modes and manage power without taking your hands off the scooter. This matters underwater, where fumbling with controls in gloves or low visibility is a real concern. Having a wrist-mounted interface keeps the operation intuitive.

The controller uses a CR2032 battery (ten are included). The main detachable battery is a lithium-ion 36V 5.0Ah pack rated at 180Wh. Charging takes 3 to 4 hours via a DC 42V / 2A input.

Build and Motor

The motor is fully enclosed, which protects it from debris and makes it safer to handle in rough water. A hydrodynamic body design is stated to produce 15% more thrust and consume 20% less energy compared to earlier designs, though that comparison is to the manufacturer's own previous version rather than to any independent benchmark.

The battery compartment is described as highly sealed, which is consistent with the 50-metre depth rating.

Assembly is modular, meaning the main components connect and separate without tools. That is useful for rinsing, transport, and storage after a dive.

What It Does Not Do

The U1 tops out at 10 feet per second on fast mode. That is quick enough to feel exciting and to make real progress against a mild current, but it will not overpower a strong surge or tidal flow.

At 15 to 18 minutes on fast mode, the battery life on maximum thrust is short. If you plan to use it aggressively for an entire dive, you will want to budget carefully or stay in medium mode.

There is no mention of a second battery being included. If you want back-to-back dives at full run time, factor in the 3 to 4 hour recharge window.

The Bottom Line

The Asiwo U1 earns its "universal" label. It is a genuinely capable underwater scooter for recreational diving, and its SUP compatibility makes it more versatile than most competitors in its category.

If you dive recreationally and want to cover more reef, explore a wreck site more efficiently, or simply reduce the effort of a long swim, the U1 is a practical choice.

If you also spend time on the water above the surface, the ability to mount it to a board or inflatable means it pulls double duty in a way that a single-purpose DPV cannot.