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What are the best adjustable dumbbells? I'm a fitness expert and these are my top picks

James Frew working out with adjustable dumbbells in front of a white painted wall
(Image credit: Tom's Guide)

I've been using adjustable dumbbells for almost half a decade and I love them. When I switched to home training, I had a basic pair just to experiment, but there was such a massive improvement when I upgraded to some of the best adjustable dumbbells.

I used to think heavier (and therefore more expensive) was better, but the longer I've trained, the more I've found that ease of use, comfort and value wins out. That's why I've ranked the LifePro PowerFlow Plus as the best adjustable dumbbells overall.

Headshot of James Frew
James Frew

I started hitting the gym over a decade ago to help manage a chronic health condition. I learnt how to make the most of limited equipment, which prepared me well for switching to home workouts in early 2020. I grabbed a set of adjustable dumbbells and a kettlebell and found ways to build strength with just a few weights and a bit of space. My main focus is to find options that get out of your way; form is the most important part of any exercise and I look for adjustable dumbbells where you can quickly change the load and keep your mind on your training.

The best adjustable dumbbells you can buy today

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Best adjustable dumbbells for most people

James Frew working out with the LifePro PowerFlow Plus in front of a painted white wall

(Image credit: Tom's Guide)

1. LifePro PowerFlow Plus

Best adjustable dumbbells for most people

Specifications

Weight range (per dumbbell): 5-25 lbs
Size: 13.7 x 5.7 x 5.7 inches

Reasons to buy

+
Secure locking mechanism
+
Flat bottom to prevent weights rolling away
+
Easy to grip handle

Reasons to avoid

-
Plastic storage tray is pretty flimsy
-
Effective but cheap-feeling adjustment slider

I don't think the best adjustable dumbbells are those that cost the most or range up to the highest weight. Instead, I think the best dumbbells you can get are a mid-range, great value and easy to use set like the LifePro PowerFlow Plus.

There may be a time when you want to lift heavier than the 25 lbs per 'bell these reach, but for most people, they're a cost-effective way to train at home, and make a perfect starter set of weights without breaking the bank on a premium pair.

I'd call the LifePro PowerFlow Plus cheap premium adjustable dumbbells. The weight range is on the lower side and the plastic storage tray doesn't scream luxury. But for a bit more money than the basic sets, you get an easy to use load adjustment slide and flat-bottomed weights that don't roll away.

The steel handle was comfortable and with enough space (just) for two-handed moves, whether I was wearing gloves or not. I didn't have any trouble with sweat loosening my grip either. The only slight challenge I had was that the indented plate design with a smooth finish made it hard to hold onto during skull crushers.

It's a bit of a shame that the end of each weight has a plastic bumper — it makes the set feel cheaper than it actually is, and more fragile than the surrounding material. So while mine stayed intact during testing, I can easily imagine one accidental drop fracturing the plastic ends.

But for the most part, these weights were a breeze to use; I see anything that doesn't actively get in my way during workouts to be a win. And I didn't have to think about how to handle the PowerFlow Plus, they just sat in the storage tray until I needed to change the resistance and helped me train without a whole rack of weights.

Best BowFlex adjustable dumbbells

James Frew working out with the BowFlex Results Series 552 SelectTech Dumbbells in front of a painted white wall

(Image credit: Tom's Guide)

2. BowFlex Results Series 552 SelectTech Dumbbells

Best BowFlex adjustable dumbbells

Specifications

Weight range (per dumbbell): 5-52.5 lbs
Size: 16.9 x 8.3 x 9 inches

Reasons to buy

+
Large weight range
+
Comfortable handle and grip
+
Durable design

Reasons to avoid

-
Have to adjust load on both sides
-
Storage tray locking mechanism can be inconsistent

BowFlex dumbbells have consistently been some of the best since the brand established its popular SelectTech 552 weights almost 20 years ago. And in mid-2025, came a successor, the BowFlex Results Series 552 SelectTech Dumbbells.

These are not unlike the older model, but there's a clear focus on simplicity this time around. You won't find smart features, integrations with smartphone apps or complex adjustment mechanisms. In the best sense, these are traditional weights.

The weight plates come with a black coating, which should help prevent wear and rusting in the long term. I kept mine outside (as I don't have space inside for equipment), but covered, and apart from a bit of dust, they survived perfectly.

Like any good set of dumbbells, the handle is wide enough for double-handed use, and I found that the coated grip in the middle was easy to hold onto, even when I worked out without gloves. I tested them in early fall and didn't get quite as sweaty as during the height of summer, but the material should fare well in the heat too.

Changing weights is easy — just adjust the dial while they're in the storage tray. It's quick, and I prefer this way over sliders. The only thing that let them down a bit is that you had to turn the dial on both ends of the dumbbell, taking extra time, though you'll find the same on many other dial sets, like the Ativafit Adjustable Dumbbells.

And it's only a small thing, but the contoured storage tray is actually quite a nice change from the usual straight lines, and makes the dumbbells seem more like a premium bit of equipment that you've dropped almost $500 on than a collection of metal plates.

Though the tray's clip that locks the dumbbells in place as you change the weight can be a bit unpredictable, and I'd occasionally have to lift the weights and base, and gently knock it against the ground to loosen the connection.

But that and the double-adjustment mechanism aside, it's a welcome return to form for BowFlex under their new ownership, and I hope Johnson Health Tech continues along this path, releasing high quality weights that will last you for years.

Best adjustable dumbbells for durability

Ativafit Adjustable Dumbbells on a garage floor in the storage trays

(Image credit: Tom's Guide)
Best adjustable dumbbells for durability

Specifications

Weight range (per dumbbell): 11-66 lbs
Size: 16.3 x 7.9 x 8.3 inches

Reasons to buy

+
Load up to 66 lbs
+
Weight plates feel secure during exercise
+
Tray holds spare weights plates

Reasons to avoid

-
Flimsy storage tray
-
On the expensive side

At a glance, the Ativafit Adjustable Dumbbells look pretty much like all adjustable dumbbells. The circular design sits neatly inside the storage tray, but there's a slightly flat bottom to stop them rolling away — it's only slight, so they seem fully circular, but it means you don't end up with runaway weights on uneven floors.

Unlike many others I've tested, though, this Ativafit set has a dial on the outer edge of the 'bell for you to make quick adjustments to the load. It has the same effect as a slider, so it's really down to person preference which you prefer. The dial is large and easy to grab hold of, so isn't a hassle between sets.

The unused weight plates stay in the storage tray, and you risk accidentally dropping a plate if you change the load while out of the tray. And speaking of the tray, it felt more flimsy than you'd expect for the price, but this is a pretty common complaint among adjustable dumbbells.

But once you start training with them, that minor issue leaves your head because the plates fit together snugly and don't hit each other or create a lot of noise while you're exercising. And although the very slightly flat bottom should stop them rolling, I'd recommend putting them directly back in the storage tray when not in use.

Best value adjustable dumbbells

Flybird Adjustable Dumbbells in a person's home showing the weight plates and adjustment dial

(Image credit: Tom's Guide/TJ Fink)
Best value adjustable dumbbells

Specifications

Weight range (per dumbbell): 5-25 lbs
Size: 15.7 x 7.6 x 6.3 inches

Reasons to buy

+
Increase the load in 5 lbs increments
+
Comfortable handle
+
Adjustment safety features

Reasons to avoid

-
Plastic storage tray

If you want to avoid sliders and don't like the dial on the Ativafit weights, the Flybird Adjustable Dumbbells have a twisting handle to change the load instead. This is one of the most convenient mechanisms and really does speed up the process, so if you want to drop the load mid-set to keep your form on point, these are a good option.

They adjust in 5 lbs increments, and run up to 25 lbs just like the LifePro PowerFlow Plus. The Flybird weights are a bit more expensive, though, but because the mechanism relies on the handle, there's additional knurling and texturing to improve your grip.

And to prevent accidents, you can't remove the plates once the dumbbell is lifted out of its storage tray. The plates fit together well, so there's not a lot of noise while you're working out, and the contoured handle helps you keep a firm grip, even when you've got sweaty hands.

You don't get an app (like you do with the Bowflex SelectTech 552i), but the Flybird Adjustable Dumbbells are a solid option at a reasonable price and are some of the best value adjustable dumbbells available right now.

Best adjustable dumbbells for grip

Core Home Fitness adjustable dumbbells

(Image credit: Tom's Guide/TJ Fink)
Best adjustable dumbbells for grip

Specifications

Weight range (per dumbbell): 5-50 lbs
Size: 14.5 x 7.9 x 7.2 inches

Reasons to buy

+
Easy weight adjustments
+
Optional storage stand
+
Comfortable handle and grip

Reasons to avoid

-
Weights can rattle during exercise

The Core Home Fitness Adjustable Dumbbells are not the most exceptional weights; they rattle, they're not super cheap and they're pretty similar to the Flybird 'bells. But where they absolutely excel is grip.

Like the Flybird weights, the handle doubles as the adjustment mechanism, but rather than apply a coating to make it easier to hold, Core Home Fitness decided on a textured handle. It's simple, doesn't look that remarkable, but it's impressively effective.

Even with sweaty hands, it's easy to keep the dumbbells in place and focus on your form, rather than keeping the weights up. And while they're a bit on the expensive side, they do range up to 50 lbs each and come as a duo.

The handle-based mechanism means it's quick to change the load, so they're a good option for high-intensity workouts where breaks are short. The Core Home Fitness Adjustable Dumbbells aren't exceptional, but they are very good.

Also tested

We test a lot of adjustable dumbbells to make sure that we're genuinely recommending The Best. That doesn't mean that the others we've tried aren't good, so if you're after more choice, these are the weights that didn't quite make the cut.

NordicTrack Select-a-Weight Adjustable Dumbbells
NordicTrack Select-a-Weight Adjustable Dumbbells: at Amazon

These weights range up to 55 lbs a piece, and they're comfortable to train with. But the adjustment mechanism is just too fiddly, and, at this price, the BowFlex Results Series 552 SelectTech Dumbbells and Ativafit Adjustable Dumbbells are a better investment.

Read our full NordicTrack Select-a-Weight Adjustable Dumbbells review

Centr Smart Stack Adjustable Dumbbells
Centr Smart Stack Adjustable Dumbbells: at Centr

I tested these dumbbells and was so ready to name them the best adjustable dumbbells overall, as they're easy to use, feel good in your hand and have a massive weight range. But just after I published my hands-on with the Centr Smart Stack dumbbells, they were discontinued. Sad times. If Centr's other weights are as good as this, then even the fixed dumbbells are worth checking out.

Amazon Basics Adjustable Dumbbells
Amazon Basics Adjustable Dumbbells: at Amazon

These are some of the cheapest adjustable dumbbells around, and they're the same style that I trained with for two years with manually adjustable weight plates. These used to hold the best budget spot in our roundup (now the LifePro PowerFlow Plus), but they're a good choice if you need weights for cheap. Just be careful with the plates; mine flew off while exercising due to a faulty locking nut.

Read our full Amazon Basics Adjustable Dumbbells review

Tespon Adjustable Dumbbells Barbell 2-in-1 with Connector
Tespon Adjustable Dumbbells Barbell 2-in-1 with Connector: at Amazon

These all-plastic weights feel cheap and the plastic locking nut keeping the plates in place frequently gets stuck on the thread. There are only two reasons to consider this set; you need something quieter than metal weights, or you need a barbell.

Read our full Tespon Adjustable Dumbbells review

How to choose the best adjustable dumbbells for you

Deciding on the best adjustable dumbbells for your home workouts will depend on how you like to train, weight range and your budget. If you're new to resistance training, aim for something on the lower load end, around 20 lbs.

If you're used to working with weights, consider going to 50 lbs, but you'll also notice that the price increases roughly in line with the extra weight. The maximum load is important, but so is the range and adjustment increments.

Go for a wide range if you want something that'll suit you several years from now as you get stronger, even if you initially have the load set on the lower end. But if you want to add some resistance to cardio or bodyweight workouts rather than do dedicated muscle-building sessions, a narrower range would work (and it's cheaper).

Pay attention to the adjustment mechanism too — premium sets have dials or sliders, cheaper sets have manually adjustable weights plates (like you'd find on a barbell at a gym). The dials and sliders are a lot easier, but you generally pay more for these sets, as they're typically on weights that have a larger range or higher load.

Generally, the heavier you go, the more you'll need to spend. If you're buying online, check your retailer's shipping policy too, as they may charge extra to deliver heavy items.

How we tested the best adjustable dumbbells

Since I began exercising at home, I've used the workout app Centr for strength training sessions, so I do my usual weekly routine with each set of weights. This includes dedicated upper body workouts, high-intensity resistance training (HIRT) and some bodyweight routines where I generally add a low weight into the mix.

Most days, I train with workout gloves on. This helps improve my grip, which is useful for keeping good form, but to get a real sense of what the weights are like, I also do some sessions bare-handed to see how well the handles cope with sweaty palms and unusual holds, like during triceps skull crushers or dumbbell halos.

Because the training is varied, I need to keep changing the load I'm using, giving me the perfect opportunity to test out the weights adjustment mechanism. If the set uses manual plates, I look at how secure the locking nuts are, whether you can get them off easily, and if the plates are easy to get back into place in a pinch.

For those adjustable dumbbells with sliders or load selectors, I look whether you need a lot of dexterity to move them around (after all, you're probably gasping for breath and trying to recover between sets — not exactly ideal conditions for fiddly mechanisms) and how securely the plates stay in the storage tray.

FAQs

What happened to BowFlex dumbbells?

Last year, I wrote about BowFlex's financial troubles. The brand struggled after pandemic stay-at-home orders ended, and declared banktruptcy in early 2024. Later that year, the company was acquired by Johnson Health Tech, who confirmed they'd keep the BowFlex brand alive.

This was good news, as the BowFlex SelectTech 552 dumbbells were some of our favorite and easily made our list of the best adjustable dumbbells. But in June 2025, BowFlex recalled all 3.8 million sets of these 'bells sold between 2004 and 2024.

That was a massive undertaking, but there were almost 330 safety reports lodged, and given the risk of the weights landing on you or others, or damaging your home, this made sense. But rather than re-issue the SelectTech 552, BowFlex has replaced them.

Instead, the company launched BowFlex Results Series 552 SelectTech Dumbbells in mid-2025. After working out with these, I can say they're an excellent set of dumbbells, and an easy recommendation.

There are no frills, like an app or smart tech, and I wish you didn't have to adjust the load on both sides of the weights, but they're easily some of the best adjustable dumbbells and, I think, a return to a simpler, more durable design.

What's the difference between an adjustable and fixed-weight dumbbell?

Most dumbbells you find in stores or at the gym have a fixed weight. There's a handle connecting two equal-weighted heads on each end. These are ideal for fitness centers and gyms as you can line them up by weight on a rack and let people choose the ones they need for their workouts.

But if you're working out at home, you may not have space for (or want) a whole rack of weights. Plus, stocking it up with the range of loads you need to train effectively can get pretty expensive. That's where adjustable dumbbells come in.

These have a handle connecting two weighted heads, but the loads are customizable; some with manually removable weights plates, others with dials that disconnect the plates and leave them in a storage tray while not in use.

The adjustable varieties can combine several weight sizes into a single product, making it easier to store. But compared to fixed-load weights, they're more complex, so you generally find that adjustable weights are more expensive than a comparable single weight 'bell.

For example, if you need a 20 lbs dumbbell, an adjustable version will often be more expensive than the fixed-load equivalent. But although the up-front cost is higher, you're really getting multiple dumbbells for the price.

Adjustable dumbbells also mean your workouts can be more flexible, as you can quickly change the load between exercises if needed. And you can gradually increase the load as you get stronger to continually challenge your muscles (if you bought a set with a maximum weight above what you currently lift).

What are the cons of adjustable dumbbells?

Although adjustable dumbbells are a space-saving option compared to buying a range of fixed-load weights, they are still quite bulky. They combine several weights into a single unit and tend to be circular rather than hexagonal, so may be harder to keep in place during floor exercises.

Because of the extra weight compared to a set of fixed dumbbells, they're also not as easy to carry with you to the gym, workout space, or local park. But you can get around this by investing in a set with removable weights plates, like the Amazon Basics set.

Your grip might also be compromised using adjustable dumbbells compared with the more durable and chalk-absorbing materials of hex bells.

Should you buy one adjustable dumbbell or a pair?

You can do many exercises with a single dumbbell, just be sure to train the same on both side of your body (like doing lunges with the weight in your right and then left hand) to ensure you keep your muscle development balanced.

However, it's definitely easier to do some staple moves like chest presses or deadlifts with two dumbbells, so it depends on the style of training and how often you'll use them whether you need to buy a pair or a single dumbbell.

It's important to check the product listing before you buy your weights, as adjustable dumbbells can be sold as individual weights or as a pair. The price often gives an indication, but it's worth looking over if you're after two.

Is it better to have two dumbbells or one?

The cost can quickly stack up for adjustable dumbbells, so you may be wondering if you need to invest in two weights or if a single dumbbell will do.

The answer depends on your goals. If you're looking to increase the challenge of bodyweight exercises and need a weight to add in, a single dumbbell may work for you.

And, if you choose an adjustable model, then, as you get stronger, you can increase the load in line with progressive overload training to continually challenge your muscles.

However, if your main aim is to build full-body muscle or switch from the gym to home workouts, then two dumbbells are a good bet. This way, you can perform right and left-side exercises simultaneously.

So, if you want to do biceps curls, you can work both sides together. Then again, if you want to challenge your core and work on your stability, holding a single weight on a specific side can help.

Ultimately, you want to balance your fitness goals with your budget. If you can't stretch to a set like the NordicTrack Select-a-Weight, you can still invest in two weights with the Amazon Basics Adjustable Dumbbells.

Why are adjustable dumbbells so expensive?

Premium adjustable dumbbells can set you back up to $500 — they're certainly not cheap, but it's important to weigh that against the alternatives.

Although you can work out effectively with a set of fixed-weight dumbbells, to continue getting stronger, you'll need to follow the progressive overload technique and gradually increase the weight to challenge your muscles.

In that case, it'd mean buying (and storing) a second set of dumbbells, and then what do you do with the old pair? You could keep them for some moves, but it's hard to store multiple individual weights without a rack (which also needs space).

Adjustable dumbbells often combine up to seven individual weights into a single unit, making them easier to store. Plus, in effect, you're buying seven pairs of dumbbells, which makes the high initial cost easier to explain.

But the increased price is also because adjustable dumbbells are more complex than fixed weights. There are dials, levers, and storage trays, and the company has to use individual weight plates to allow for adjustments compared to a single block of metal.

Are cheap adjustable dumbbells worth it?

Although adjustable dumbbells are usually more expensive than fixed weight models, they can be cheaper in the long run, especially if you want to continually challenge your muscles as you get stronger with heavier loads.

However, there are cheap adjustable dumbbells, like the Amazon Basics Adjustable Dumbbells, so you may be wondering whether these more budget-friendly models are actually worth your money.

If you just need a pair that you can lift occasionally or you're new to strength training, these are definitely a good option, especially if you're not sure how often you'll train with them and don't want to break the bank.

The main drawback of cheap adjustable dumbbells is that they are usually not as 'premium-feeling' as more expensive options. This seems obvious, but it can be hard to tell when comparing sets online.

You'll usually find that the handle isn't as wide or comfortable to grip, the weight range is more limited, and the materials aren't as durable. But they do get the job done, so the decision will depend on your budget and training needs.

James Frew
Buying Guide Editor

James is Tom's Guide's Buying Guide Editor, overseeing the site's buying advice. He was previously Fitness Editor, covering strength training workouts, cardio exercise, and accessible ways to improve your health and wellbeing.

His first job at as a sales assistant in a department store, and this is where James learned how important it is to help people make purchasing decisions that are right for their needs, whether that's a fountain pen to give as a gift or a new fridge for their kitchen.

James is an advocate for sustainability and reparability, and focuses his reviews and advice through that lens to offer objective insights as to whether a specific product or service will be right for your needs.