Hey everyone. My new Lullax dumbbells have arrived—specifically the new range, the Neo Slim—which are a direct evolution of the classic green Neo ones you’ve seen me use a thousand times. If you’re setting up a home gym or want to level up your training without giving up an entire room, the dumbbell you need to burn into your brain is the Adjustable Dumbbells Lullax Neoslim .
Before we get into it and see how they behave when lifting heavy, here’s a little gift for those of you who already know you’re going to buy: by applying the discount coupon Lullax BILBOTEAM10 on their website, you’ll get a direct 10% off these dumbbells or any other item in the store. A nice bit of savings that always comes in handy.
My philosophy is simple: I test them, I push them hard for real, and if I like them and they hold up, I show you. In this article I’m going to break down, point by point, why I think they’re the best option on the market right now for value for money, how they performed in an extreme Bilbo Set, and whether they’re really as safe as they claim.
When you’re thinking about buying equipment to train at home, the two biggest enemies are usually lack of space and the hassle of constantly loading and unloading plates. This is where this new generation of adjustable weights comes in and blows the market wide open.
The brand took its best-selling model over the last three years (the Lullax Neo) and gave it a spectacular makeover, improving the finishes and reducing the bulk to make them much easier to handle. There are three versions available depending on your strength level and goals: the 24 kg Neo Slim, the 32 kg, and the 40 kg, which is the exact pair I’m training with.
Best of all—and I’m saying this from personal experience after dealing with a thousand types of fitness equipment—is they confirmed they come already assembled. This isn’t like buying an IKEA piece of furniture where you spend the whole afternoon tightening screws and praying you don’t have leftover parts.
Just open the packaging, take them out, and start training. That said, like I always say: take them out of the box carefully and set them on the floor or on their stand. Don’t do anything stupid like yanking them out any old way as soon as you open them, because they’re 40 kg, they weigh a ton, and the box or packaging can fall on you.
How easy they are to use from minute one is a big plus for those of us who want to get straight to the point and make the most of our time.
To give you an idea of the scale of what we’re talking about, this pack condenses a set of 20 pairs of dumbbells into the space of a pair of shoes.
When you go to a commercial gym, you see a whole dumbbell rack several meters long that goes up in 2 kg jumps. Having that same versatility—such precise load progression—but concentrated in a corner of your room is absolutely insane. No more having the floor covered in plates of different sizes rolling around.
With these compact dumbbells, you keep your training area clean, safe, and ready to switch from a shoulder isolation exercise to a heavy chest press in seconds.
The heart of any adjustable weight set is its selection mechanism. If the system is clunky, jams, or the weight jumps are too big, the dumbbell loses all its usefulness. With the Adjustable Dumbbells Lullax Neoslim , it couldn’t be more intuitive. Just rotate the middle handle (the central grip) to choose the exact load you need. At the ends, next to the grip, there’s a very clear indicator that shows the weight you’re selecting: 24 kg, 18 kg… and so on, going down or up in perfect intervals.
They start from a base weight of just 2 kg. If you select, for example, 4 kg, you’d simply pull out the central block along with an additional weight that attaches underneath. If you want to go up to 6 kg, then the first two side plates come out, and so on—adding weight as more plates lock into place.
The smoothness of this system pleasantly surprised me. I tested them straight out of the box and they rotate really well—actually, much better than the previous Neo dumbbells.
For those of you who know the brand’s catalog, I’ll tell you the feel is on par with the Lullax Platinum. They took the same high-end mechanism the Platinum had and integrated it here, in the Neo Slim, which is a much more affordable line.
For me, right now, they’re the best dumbbells Lullax has in terms of quality and, above all, price. And in disciplines like the Bilbo Method, where gradual progression is essential, being able to go up in 2 kg increments is vital to avoid stalling and keep hitting personal records without forcing an unmanageable jump in load.
This is the million-dollar question—and the one you ask me most in DMs. When you’re under 40 kg per hand for a bench press or overhead press, your mind needs to be focused on pushing, not on whether the equipment is going to fail.
A lot of you ask me: “Isn’t there a risk a plate comes loose mid-lift and falls on your face?” I get the fear, but I can assure you the design of these adjustable dumbbells makes that physically impossible.
I’ve been using this safety system for years on different Lullax models (the Platinum dumbbells, the original Lullax Neo , …) and it has never failed. The secret is in the internal mechanism. As you rotate the handle to select the weight, a solid iron piston advances, passing through and grabbing the plates one by one.
But the real magic of the safety is in the base. If the dumbbell isn’t perfectly seated in its cradle, the handle won’t turn. It’s impossible. You can’t change the weight in the air, even with brute force. Now, let’s take the extreme case many people imagine: what if it’s not properly engaged and I lift it? Even if you managed to seat it incorrectly, the extra plate wouldn’t fly off—it would stay on the stand.
To prove it live, I tested placing the dumbbell upside down without it being seated in the base. When you flip it over, the plates don’t fall. Why? Because of the shape of the piston and the plates, they can only come out by sliding upward. Gravity works in your favor: when you grab them to press, the opening is oriented so the plate could never fall toward your body. They’re designed to be fail-safe.
So yes, you can relax—you can lift heavy to failure without worrying about losing your teeth.
There’s no point talking about technical specs if the gear doesn’t perform in the trenches. To test these Lullax Neoslim Adjustable Dumbbells, I decided to push them hard with what I do best: a Bilbo Set. I had incline dumbbell press on the plan, so I set the dial to 36 kg.
I opened the Bilbo Method training app to check my history. The last heavy session I logged for this exercise was with 35 kg, where I managed 37 reps. The goal for the day was to add one or two kilos per hand and see how many I could get, aiming for maximum explosiveness. I lay back on the bench, grabbed the dumbbells, and started pressing.
The grip is extremely comfortable, it doesn’t slip with sweat, and the plate block feels solid; there’s no annoying rattling of loose metal, which lets you focus 100% on contracting the pecs.
I hit technical failure, panting and snorting like a bull, but I managed to nail 35 reps with 36 kg. When I finished, with my arms shaking, I dropped them into the base and they clicked in with unbelievable ease.
That’s crucial when you finish a set at the limit and you barely have motor control: you don’t have to fight to get the plates into their rails. I logged the data in the app and the system gave me an estimated 1RM (one-rep max) of 81 kg. The dumbbells passed the test with flying colors.
If there’s one thing I value when recommending gym equipment, it’s the backing behind the brand. Lullax is a Spanish brand that offers a 3-year warranty on its products—key when we’re talking about mechanical equipment that will see wear and intense training. I know firsthand, from the comments you leave me if you already have their dumbbells, that their after-sales service is excellent. If there’s ever an issue with shipping or a specific part, they sort it out quickly and without excuses.
And since I know what we all want is a good price to build our home gym, I’ve got you a great incentive. If you decide to buy Lullax 40 kg dumbbells, or any other model in the Neo Slim range (24 or 32 kg), you can use my Lullax discount code BILBOTEAM10.
Lullax discount coupon BILBOTEAM10 and you’ll get 10% off
With it, they’ll apply a 10% discount directly across the entire Lullax store. I can assure you that on heavy equipment, 10% is a very significant saving that you can put toward a good bench or more plates.
Anyway, guys—leave me a comment with how they’re working for you if you already have them, and let’s get after it!
Even though the dumbbells are made with very durable materials and the internal piston is iron, no adjustable dumbbell on the market is designed to be thrown or dropped from height (the famous drops). The selection mechanism has precise parts that could be knocked out of alignment by repeated violent impacts. Ideally, like I do after a Bilbo Set, rest them on your knees and place them gently back into the base.
Absolutely. One of their biggest strengths is that they come fully assembled. You just need to take them out of the packaging carefully because of the weight, place them on their base, and turn the dial to select the load and start your workout.
The new Neo Slim generation comes in three formats to suit all levels: you can buy the 24 kg model, the 32 kg model, or the heaviest 40 kg. All of them have 2 kg weight increments (starting from 2 kg), which makes them perfect for linear load progressions.
Since Lullax is a Spanish brand, all Neo Slim models come with a legal 3-year warranty. Their customer service is fast and effective with any manufacturing defect or mechanical issue, which gives you a lot of peace of mind when making the investment.
Expert in strength training and physical tests for civil service candidates. With over 30 years of experience and multiple national and European records, he shares his methods to improve strength, endurance, and performance safely.
