Sublue Mix Underwater Scooter Review: Pulled Like a Motorboat
We tested the Sublue Mix underwater scooter in the pool. Tiny propellers, big thrust, a self-floating trick, and one battery quirk worth knowing.
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Quick Verdict
It pulled a full grown adult through the water with no foot fluttering, despite the compact propeller design. The Sublue Mix underwater scooter delivers 22 lbf of thrust in a 7.72 lb body, speed most dual-motor scooters twice its size can’t match.
Buy if you:
- Snorkel or dive on trips and come up exhausted after short swims
- Want something at 7.72 lbs you can pack in a backpack and fly with
- Plan to mount a GoPro or action camera and film yourself underwater
- Have kids who’d lose their minds over a weightless underwater ride
Skip if you:
- Hate holding 7+ lbs out of the water, because it gets heavy on land fast
- Want all-day runtime; you get 30 to 45 minutes per charge
- Expect to dive deep without the buoyancy float, since the bare unit sinks to the bottom
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The Smallest Underwater Scooter Mix We’ve Tested
We’ve been testing water scooters from different brands for about five years now, and the Sublue Mix is the very first one that comes this small. That was the first thing out of our mouths before we even got it wet. The mix underwater scooter looked almost too compact to do anything serious, and we said on camera we’d be very surprised if it pulled us at all. Spoiler: it pulled us like a motorboat.
The one question we kept asking before we got in: can propellers this small actually move a full grown adult, or does this thing just look cool on a product page? Most scooters in this category are two-handed, beach-bag-ruining slabs. This one fits in a backpack. Here’s what’s inside it and why that matters.
How the Sublue Mix Is Built
The Mix runs dual motors that deliver 22 lbf of thrust through a 2-speed gear switch. That’s 1.2 m/s (2.68 mph) for relaxed cruising and 1.6 m/s (3.58 mph) when you want the faster ride. The whole unit weighs just 7.72 lbs and it’s rated waterproof down to 131 feet. Here are the numbers that matter before you buy.
| Spec | Detail |
|---|---|
| Weight | 7.72 lbs |
| Thrust | 22 lbf, dual motors |
| Speed | 2.68 mph low / 3.58 mph high |
| Battery | 11,000 mAh, removable, waterproof |
| Runtime | 30 to 45 minutes intermittent |
| Waterproof rating | 131 ft |
| Mounts | GoPro / action camera + smartphone |
| Includes | Detachable float, propeller guards |
A couple of build details stood out. The detachable floating buoyancy piece that you see in the listing photos is not absolutely necessary to run the scooter. It’s a floaty, and on the Mix it’s made of the same plastic as the actual unit. Other brands we’ve used go with a foamy texture you attach on top. This one feels more like part of the machine, which we liked. It clips on with the same GoPro-style attachment, so you twist it in and you’re set.
The battery is the part that’ll surprise you. The unit itself is not sealed at all. When you pull the battery out, it’s wet. What’s sealed is the battery itself, the connection point has a sealant and it’s waterproof with zero issues. Same deal when charging: the seal goes onto the charger and you’re good. Opening and shutting the unit is extremely easy too, and that’s worth flagging because we’ve had other brands where the closure was a problem that only got worse over time.
What Happened When We Got In the Water
We pressed both buttons, left the float off, and held it in our hand at the pool surface. Oh boy. That is something. As soon as it hits the water you see bubbles, which just means it’s taking in water and that’s normal. We kept our body parallel to the surface and let it pull. We weren’t swimming whatsoever. Tilt down and it drives you under, so you steer by angle.
Going fully underwater is where it clicked. Super easy to maneuver, right and left with no effort. No fluttering of the feet. In the water the 7-plus pounds becomes almost weightless, and the propulsion is impressive for the size. It’s like a motorboat. We controlled it through turns the whole time and it held the line. This was a full grown adult getting pulled, so you can imagine kids having a blast with it.
To turn it on there’s a small ritual you need to learn. There is no on button. The only switch is unlock or lock, which just controls whether you can press the trigger. To actually power up, you hold the left button with your left hand for 5 seconds until the purple LEDs flash. Then both triggers fire the propellers. It’s simple once you know it, but it isn’t obvious on the first try.
It Gets Heavy The Moment It Leaves The Water
Holding it out of the water is heavier than you’d think. It’s over 7 pounds, and after a while in your hand above the surface, you feel every ounce of it. In the water that’s a non-issue, the buoyancy takes over and it floats away. But on the boat deck, on the pool edge, walking it from the car, that weight is real. It’s not a deal-breaker, it’s just the trade-off for dual motors that hit this hard. Keep it in mind if you’re carrying it any distance before you splash in.
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Sublue Mix Underwater Scooter
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Who Should Grab One
The clearest use case we kept coming back to: you’re anchored offshore, you snorkel out, and instead of exhausted-crawling back to the boat ladder you just grab the Mix and let it drag you. That’s where 22 lbf of thrust and a backpack-sized body actually earns its price tag. The detachable float makes it beginner-safe in a pool because the bare unit will sink to the bottom of the pool or ocean without it, and the float brings it back up. So for kids learning, keep the float on. For deeper snorkeling and diving where you want to descend, take the float off and the scooter goes down with you.
The GoPro mount uses the same twist-lock connection as the float, so swapping between them takes about three seconds. Point the camera forward and you’re filming your own dive while the scooter pulls you, no separate mount to buy, no extra hardware rattling around. That’s a detail cheaper models skip entirely.
Advice Before You Buy
Charge it the night before or the morning of. It takes a couple of hours, and the red light turning green is your green flag that it’s full. We did exactly that before heading to the pool and had no surprises. Learn the 5-second left-button power-on before you’re floating in deep water trying to figure it out.
After every session, pool or ocean, rinse it with fresh water. Clean the propeller and the whole unit, you can dunk it in a bucket or just hose it down. Then remove the battery and charge it, but don’t leave the battery sitting in the unit between uses. That last habit is the kind of thing that keeps these scooters alive over years, so build it in from day one.
Pros
- Smallest unit in its class we’ve tested, yet 22 lbf of thrust that pulls a full adult
- Super easy to maneuver underwater, turns left and right with no effort and no kicking
- Battery seal works flawlessly even though the body itself isn’t sealed
- Opens and closes easily, a closure problem we’ve seen ruin other brands
- Built-in GoPro mount and a smart detachable float for beginners or deep diving
Cons
- Over 7 pounds feels heavy when you hold it out of the water for a while
- Runtime is 30 to 45 minutes, so plan your dives and keep a charge ready
- No simple on button; the 5-second hold to power up isn’t obvious at first
Frequently Asked Questions
How long does it take to charge the Sublue Mix?
A couple of hours from empty to full. We charged ours the morning before heading to the pool. The red light turning green tells you it’s done, so there’s no guessing.
Will it sink if I let go of it underwater?
Only without the float. With the detachable buoyancy piece attached it floats back to the surface, which is why it’s safe for beginners and kids. Take the float off for deeper diving and the bare unit will sink to the bottom, so that’s intentional for descending, not a flaw.
Can I mount a GoPro or action camera on it?
Yes. It uses a GoPro-style attachment, so you twist your action camera mount right onto the unit. The same connection point holds the float, and the listing also includes a smartphone mount.
Is the battery really safe if the unit isn’t sealed?
Yes. The body takes in water on purpose, but the battery itself is sealed with a waterproof connection. We pulled ours out wet with zero issues, and the same seal engages when you plug it into the charger.
Can it pull more than one person?
The dual motors are rated to pull multiple people, and it towed a full grown adult easily in our test. For kids it’ll feel like overkill in the best way. Just remember speed and pull eat into the 30 to 45 minute runtime faster.
Does it work the same in the ocean as in a pool?
Yes, we’ve run scooters like this in the ocean for years and the Mix handles both. The big ocean advantage is jumping off a boat to snorkel and letting it tow you back to shore when you’re tired. Just rinse it with fresh water after saltwater use.
Is it allowed on a plane?
The listing states it’s air transport compliant and at 7.72 lbs it packs into a backpack. Always check your specific airline’s lithium battery rules before you fly, since those policies change.
How do I keep it working long-term?
Rinse the whole unit and propeller with fresh water after every session, pool or ocean. Then remove the battery and charge it separately, don’t leave the battery sitting in the unit between uses. That habit is what keeps these alive over the years.
Get it now
Sublue Mix Underwater Scooter
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