Waydoo Subnado review: is it the right underwater scooter for families, snorkelers, and divers in Tampa Bay?

Yes — for the right use case. The Subnado is the most compact, lightest underwater scooter available, and its mounting system genuinely changes what you can do with it. For snorkeling Florida's Gulf reefs, cruising spring runs, or putting a whole family on the water, it covers the ground most buyers actually need.

The longer answer requires honesty about the spec sheet. The 56-minute battery claim and the 1.4 m/s speed figure are real — under specific conditions. What those numbers mean in practice, and where the Subnado's real limits are, is what this review covers.

We stock both the Standard and the Plus here at Elite Watersports in St. Pete. Here is the straight read.

What is the Waydoo Subnado and what does it do?

The Subnado is an underwater scooter — a jet-propelled, handheld unit that pulls you through the water rather than making you swim. What makes it different from most underwater scooters is its design. The main body is only 2.4 inches wide, which is thinner than a standard can. It weighs 3 lb. It fits in a water bottle pocket on a backpack and passes TSA carry-on rules.

The key word with the Subnado is versatility. Most underwater scooters are handheld tow devices — you grip and hold. The Subnado can do that, but its real advantage is a quick-release mounting system that lets you attach it to your forearm, your thigh, a scuba tank, under a SUP board, or under a kayak. When it is mounted rather than gripped, your hands stay free. On a snorkel, that means you can hover over coral, take a photo, point something out to a kid, or just drift without burning energy. On a scuba dive, it means you are not arm-fatiguing from holding a tow device the whole dive.

Three speed settings (low, medium, high/super gear) let you dial the thrust to the conditions. Single-unit top speed is about 1.4 meters per second, or roughly 3.1 miles per hour — approximately twice the average swimming pace. The depth rating is IP68 to 60 meters.

It also doubles as a power bank through a USB-C port, which is a practical bonus on beach days or boat trips.

For the full product details and current pricing, the Waydoo Subnado Standard is available directly at the shop.

How fast is the Subnado and how long does the battery last?

The gap between the spec sheet and real-world performance is meaningful — and knowing it sets the right expectations.

Speed: Waydoo rates the Standard at 1.4 m/s top speed. Independent testing from multiple reviewers reached speeds in that range in pool conditions, with the honest caveat that real-world performance varies based on rider size, body position, and drag. A lighter rider in a streamlined snorkel position moves closer to the rated figure; a larger diver in full scuba gear moves somewhat slower. Multiple sources tested a 200+ lb adult in full scuba gear and measured around 0.76 m/s — about half the single-rider speed — which is still meaningful propulsion for a diver who would otherwise be finning through that current.

Battery: This is the number that gets misread often. Waydoo's 56-minute runtime is accurate at low-to-medium speed. At full throttle, independent testing found the battery sustains full power for roughly 12 minutes before stepping down to a lower-speed reserve mode that runs for another 13 minutes or so. That combination gives you 25 minutes of use at max effort before a full recharge is needed.

In practice, nobody runs a snorkel scooter at full throttle the entire time. You cruise at medium speed, kick up to high to cover a distance, drop back down. On a real session, the battery covers a comfortable hour of mixed-speed snorkeling. The 56-minute number is not a lie — it is just the low-speed figure, and knowing that distinction means you buy the right expectations.

Charging via 100W USB-C takes approximately 1.2 hours from empty to full. The Subnado also functions as a power bank, so you can charge a phone or GoPro from the battery between sessions.

For the speed and runtime comparison between one unit and two, and whether the Plus changes that math in a way that matters for your riding, what a second Subnado actually adds covers it in full.

What does the mounting system change — and why does it matter more than speed?

Every underwater scooter can tow you. The Subnado's real competitive advantage is that it can tow you while your hands are doing something else.

When you mount the Subnado to your forearm, it propels you through the water without requiring a grip. You can fin normally, reach down to point at something, take photos, or adjust your mask. When you strap it to your thigh, you glide hands-completely-free, which is the cleanest way to observe reef life without disrupting it — you are not kicking up sand or chasing fish with a big torpedo device.

On a scuba dive, mounting to the tank bracket means you are not holding the device at all. That matters on longer dives where arm fatigue from towing a handheld scooter compounds. One reviewer with limited leg mobility used the Subnado through a two-week trip in the Florida Keys, taking it down to 110 feet on single-tank dives without any operational issues.

For families with kids, the forearm mount lets a younger rider wear it and move at adult pace without needing the leg strength to fin independently. The child-friendly propeller guard ships standard — it is not a separate purchase.

The triple accessory mount on the body accepts standard 1/4-inch threads, so action cameras attach directly. That turns it into a mobile camera rig on reef days where you want stable footage of fish rather than shaky swimming-camera footage.

Is the Subnado good for families with kids in Florida?

For Tampa Bay families, the Subnado earns its place in a specific set of use cases — and it is worth naming them specifically, because "family use" covers a wide range.

Florida Gulf reef days near Fort De Soto: The Gulf-side reef patches accessible from Fort De Soto and the barrier islands around St. Pete are shallow, calm, and teeming with fish. The Subnado on medium speed lets kids cover the full reef without getting tired, and the forearm mount means they can use their hands for the underwater camera you inevitably bring. The propeller guard means you do not worry about the unit around younger swimmers.

Crystal River and Rainbow River springs: The spring runs northwest of Tampa Bay are slow, clear, and flat. The Subnado is genuinely the right tool here — you drift downstream at scooter pace, hands free, watching manatees without spooking them with aggressive finning. For families with mixed swimming abilities, the scooter equalizes pace so stronger and weaker swimmers stay together.

Lake and bay cruising: The 90L board scooter kit on the eFoil is a different experience. The Subnado on a SUP mount turns a paddle session into a propelled cruise — you power across a flat bay section, find a sandbar, and let the kids snorkel while you keep an eye on them from the board.

The Subnado weighs 3 lb and fits in a backpack. That practicality matters on a family day out — it is not a piece of equipment that requires a truck and a launch ramp. You pack it, you go.

For more ideas on family water activities around the Tampa Bay area, the family-friendly spring break guide for Tampa covers the spots and timing worth knowing.

Is the Waydoo Subnado worth it for a Gulf reef or springs snorkeling trip from Tampa Bay?

If you are planning a snorkel day out of St. Pete — whether that's the Gulf reefs off Fort De Soto, the Skyway Fishing Pier area, or a day trip north to Crystal River or Rainbow Springs — the Subnado Standard is the compact, practical tool that makes the most of a limited window on the water.

Here is why it fits Florida snorkeling specifically. The Gulf side of Tampa Bay gives you warm, shallow water most of the year. Depths at snorkeling-friendly reef patches run 5 to 25 feet. At those depths, the Subnado's 60-meter depth rating is far more capability than you will ever use, and the 3-pound body is easy for adults and older kids to control in calm conditions. The 3-speed system means you cruise on medium, bump to high to move between reef sections, and ease back to low when you want to hover and look.

For springs trips, the experience is even more natural. Crystal River is slow and clear. On a Subnado at medium speed, you drift comfortably with the current, observe without disturbing, and cover the full swim without wearing yourself out. That matters on an early-morning manatee snorkel where the goal is stillness, not speed.

The honest consideration for Florida snorkeling is saltwater maintenance. The Subnado's aluminum housing is corrosion-resistant, but post-session care in a saltwater environment matters: rinse with freshwater, keep the USB-C connector cap in place when not in use, and apply a small amount of dielectric grease to the connector periodically. Reviewers who have been using the Standard for two or more years in saltwater conditions report no structural issues when basic care is followed. Skip the rinse routine and you will see accelerated connector wear — that is true of any aluminum device in Florida salt air.

If you are buying for a one-time trip, the Standard at $499 is the right entry point. If you are buying for regular Tampa Bay use — monthly spring trips, summer reef days with the family — the Plus at $799 is worth consideration. Stop by the shop in St. Pete and we will talk through which fits your actual schedule. The Subnado Plus is available here for the full specs before you come in.

Waydoo Subnado Standard vs Subnado Plus: which one should you buy?

Both models are stocked at Elite Watersports. Here is the decision in plain terms.

Subnado Standard — $499:

• 500W motor

• 1.4 m/s top speed solo (about 3.1 mph)

• 98Wh battery (airline approved — fits carry-on rules)

• Rated up to 56 minutes low-speed, about 25 minutes at full throttle in practice

• 3 lb / 1.4 kg

• Charges via 100W USB-C in approximately 1.2 hours

Subnado Plus — $799:

• 800W motor (60% more power than Standard)

• 1.7 m/s top speed solo (about 3.8 mph) — meaningfully faster

• 144Wh battery (requires airline approval above 100Wh threshold — check with your carrier before flying)

• Rated up to 60 minutes; real-world at full throttle: about 11-12 minutes before stepping to reserve, total runtime similar to Standard

• 1.8 kg (under 4 lb)

• PD3.1 140W fast charging — fully charged in approximately 1.2 hours with the right charger

Who buys the Standard: Families on a budget, lighter riders, travelers who need carry-on-approved gear without airline approval hassle, occasional snorkelers who want the entry experience. The Standard covers 90% of what most Tampa Bay snorkelers actually do.

Who buys the Plus: Heavier riders who want noticeably stronger thrust, riders who fight real current (spring runs with flow, drift snorkels), divers who want maximum pull in full scuba gear, and anyone who tried the Standard and found themselves wanting more power during the session. The Plus is also the better single-unit option for a rider weighing their choice between one Plus and two Standards.

One note on the dual setup: If your question is "should I get two Subnados?", that comparison — what two units add versus one, and whether the Plus is a better upgrade than a second Standard — has its own dedicated breakdown. The honest math on one Subnado vs two covers the full picture.

What are the honest trade-offs — and who should not buy the Subnado?

Any review that skips the downsides is selling, not reviewing. Here are the Subnado's real limits.

The battery is not replaceable. This is the most consistent criticism across multiple independent reviews. The 98Wh lithium cell is built in. Over 18 to 24 months of regular use, battery capacity degrades — multiple users have noted noticeable runtime reduction after a year and a half of use. If you plan to use this as a workhorse for years of intensive diving, a replaceable-battery alternative may be worth the trade-off in longevity. For occasional and regular recreational use, the degradation timeline is acceptable for most buyers.

Runtime at full throttle is shorter than the spec suggests. Covered above, but worth restating plainly: 12 minutes at maximum power before the unit steps down. For snorkeling and recreational diving this is fine — you are not pinned at full throttle the whole time. For extended high-speed runs, plan around the honest number.

Two units do not sync. If you run two Subnados together on a twin-engine bracket, you control them independently. They are not electronically linked. This is workable — people adapt — but it is a meaningful difference from a single, synced dual-motor unit.

The connector needs attention in saltwater. Swapping mounts or accessories with wet hands can introduce water into the front connector over time. Minor corrosion builds up on the contacts. This is not a unit-killer — a clean and dry, or a wipe with vinegar, clears it — but Florida saltwater users should check the connector regularly and keep the cap seated when not in use.

Who should NOT buy the Subnado:

If you are a technical diver, cave diver, or someone who needs sustained high-speed tow capability for extended deep dives, the Subnado is not your tool. It is a recreational scooter built for snorkelers, freedivers, and recreational scuba — not a purpose-built DPV for serious underwater work. The depth rating handles recreational diving depths. The runtime and speed at depth do not make it a technical diving tool.

If you are planning to run multiple back-to-back full-power dives in a single day without access to power for recharging, the non-swappable battery is a real constraint. Each charge cycle gets you one serious session.

For the right buyer — recreational snorkelers, families, casual scuba divers, and spring-run cruisers — none of those limits are disqualifying. They are just the honest map.

Where can you buy the Subnado and try it in St. Pete?

The Subnado Standard and Plus are both in stock at Elite Watersports in St. Petersburg. For most snorkelers, families, and recreational divers in the Tampa Bay area, the Standard is the right buy. If your sessions involve current, heavier riding, or full scuba gear, the Plus is worth the step up.