- How adjustable dumbbells change weight: dial, switch, plate-loaded
- Six adjustable dumbbell sets to research, in no particular order
- Comparison table: what the makers say about the sets
- How to choose adjustable dumbbells for your space and your training
- Adjustable dumbbells or fixed weights?
- Safety basics when you train with adjustable dumbbells
- Moves to build your home routine around one pair
- Mistakes to avoid when buying adjustable dumbbells
- Frequently asked questions
The best adjustable dumbbells depend on your strength, space and how fast you want to change weight. Dial and switch sets swap in seconds, plate-loaded sets grow with you. Six sets are listed alphabetically below, not ranked.
A full rack of dumbbells takes a lot of floor, and most people working out at home don't have a spare room. Adjustable dumbbells swap that rack for one pair that changes weight when you turn a dial, flip a switch or add plates. I haven't lifted any of these sets for this page. It's built from each brand's own product pages and published specs, so you get how the systems work, what to check and an alphabetical shortlist to research, with no crowned winner.
How adjustable dumbbells change weight: dial, switch, plate-loaded
There are three common ways to swap the weight, and each has trade-offs.
- Dial systems: you twist a dial on each end and the dumbbell picks up the plates you need. They're quick, which suits circuits and supersets. Bowflex SelectTech works this way.
- Switch or handle-twist systems: you change the weight with a switch or by turning the handle. REP QuickDraw is described by its maker as switch-based, and Core Home Fitness says you twist the handle.
- Plate-loaded systems with locking screws: you add or remove plates and lock them on. They take longer to change, but you can often grow the range with add-on plates. Ironmaster Quick-Lock is built this way.
There are also pin or selector designs, where a pin slides into a slot to pick the weight. I couldn't open those makers' sites to check their current specs, so I've left them off the shortlist rather than guess.
A quick change matters more than you'd think. If swapping weight takes a minute, you're far less likely to do it between sets, and your workouts tend to settle on one weight.
Six adjustable dumbbell sets to research, in no particular order
These are listed alphabetically by brand. It's not a ranking. Weight ranges and increments come from each maker's own page. They're sold in different regions and stock changes, so check the page before you plan around one.
Bowflex SelectTech 552
Bowflex says each dumbbell runs from 5 to 52.5 lb (2.3 to 23.9 kg), with 15 settings per dumbbell. The steps aren't even: they're 2.5 lb at the light end, 5 lb in the middle and 2.5 lb again at the top. You change the weight with the dials, and the pair doesn't come with a stand.
Bowflex SelectTech 1090
The heavier sibling runs from 10 to 90 lb (4.5 to 40.8 kg) per dumbbell, in 5 lb steps, with 17 settings. It uses the same dial idea, and the pair comes with storage trays. The stand is sold separately. It's bigger, so check the space you have.
Core Home Fitness Adjustable Dumbbell Set
Core Home Fitness lists each dumbbell as adjusting from 5 to 50 lb, in 5 lb steps. You twist the handle to change weight, with no knobs or levers. The set comes with two cradles and an exercise guide, and the stand is sold separately. Stock looked patchy on the pages I read, so check availability first.
Ironmaster Quick-Lock
This is the plate-loaded option. Ironmaster describes its standard set as adjusting from 5 to 75 lb per dumbbell in 2.5 lb steps, with locking screws you turn to release the plates. The same plates fit its adjustable kettlebells and bars, and add-on kits extend the range for stronger lifters. It's the one to look at if you expect to get a lot stronger.
REP FAST Series
REP Fitness lists this as an all-metal dumbbell with a fast adjustment system, made with Pepin. The variants on its collection page include 65, 85 and 105 lb, and its FAQ mentions heavier options up to 125 lb. Check the page for increments, which weren't stated.
REP QuickDraw
A switch-based set from REP. The pounds version lists pairs up to 60 lb per dumbbell, the kilogram version lists pairs up to 30 kg, and add-on weights are sold separately. It's a good example of a smaller, lighter system aimed at home users.
Want AI doing the heavy lifting in your marketing?
I build the systems that handle the boring 80 percent, so you get your week back. Done properly, with the human kept in.
Comparison table: what the makers say about the sets
| Set | Weight system | Range per dumbbell (maker's page) | Good for |
|---|---|---|---|
| Bowflex SelectTech 552 | Dials | 5 to 52.5 lb | Lighter circuits and general training |
| Bowflex SelectTech 1090 | Dials | 10 to 90 lb | Heavier pressing and rowing |
| Core Home Fitness | Handle twist | 5 to 50 lb | Simple one-hand swaps |
| Ironmaster Quick-Lock | Plates and locking screws | 5 to 75 lb, expandable | Lifters who will keep adding weight |
| REP FAST Series | Fast-change system | Variants from 65 lb | Heavier lifters who want a metal build |
| REP QuickDraw | Switch | Up to 60 lb or 30 kg | Compact, smaller sets |
How to choose adjustable dumbbells for your space and your training
- Work out your heaviest working weight. Pick a set that goes beyond it, so you won't outgrow it in a few months.
- Look at the smallest jump. A 5 lb step is big for shoulder raises and curls. Smaller steps matter for lighter exercises.
- Check the footprint. Measure the tray or stand and the room around it. Some sets are long, which can make some floor exercises awkward.
- Think about the swap speed. If you do circuits, a dial or switch will save time. If you do straight sets, plate-loaded is fine.
- Check the feel of the handle. Heavier lifters often want a handle that feels solid, because a rattle or wobble is distracting.
- Plan the floor. A mat under the stand protects the floor and cuts noise.
- Read the return and warranty terms. You'll only know if a set suits you once it's in your home.
Adjustable dumbbells or fixed weights?
Fixed dumbbells never jam and feel the same every session, but a rack takes space and a decent range is a big purchase. Adjustable sets fit more weights into a small space. They tend to be bulkier than a fixed dumbbell of the same weight, so some exercises, such as close-grip pressing or lunges in a tight space, can feel clumsy. If you only train a handful of times a week and have a corner of a room, adjustable is usually the sensible choice. If you want to train in a crowded garage, think about where it all goes. My guide to home gym equipment looks at what to buy first, by the space you have.
Safety basics when you train with adjustable dumbbells
- Check that the dumbbell is fully locked before every set. Turn the dial or screw until it's seated.
- Lift the dumbbells by the handle, in the middle, and set them down in the tray rather than dropping them.
- Keep your back straight and use your legs when you pick a heavy pair off the floor.
- Start lighter than you think you need, and add weight in small steps.
- If you're new to lifting, a session with a qualified coach is a good way to learn the moves.
- If you have an injury or health condition, ask your doctor before you start a new programme.
These sets are a convenience, not a substitute for good technique. A coach or a reliable beginner programme matters more than the brand on the handle.
Moves to build your home routine around one pair
One pair of adjustable dumbbells can cover a lot of ground: squats, lunges, presses, rows, curls and carries. Glute work is a good example, because you can load the movement as you get stronger. My glute exercises with how-to steps shows six moves you can do with a single set.
Mistakes to avoid when buying adjustable dumbbells
- Buying a set that tops out at the weight you can already lift.
- Not checking whether the stand is included. Several of these sets sell the stand separately.
- Ignoring the length of the dumbbell, then finding it hits your legs in a lunge.
- Forgetting the maker's region and stock. Some stores only ship to certain countries.
- Choosing by looks and skipping the specs.
Make adjustable dumbbells or other home gym gear? See how to get it featured on this list.
Frequently asked questions
What are the best adjustable dumbbells?
It depends on your strength, your space and how quickly you want to change weight. The shortlist above is alphabetical, not a ranking. Check the range, increments and footprint against your own training.
Are adjustable dumbbells worth it?
They're worth considering if you're short on space, because one pair replaces a rack. Fixed dumbbells are simpler and never jam, so it comes down to the room you have and how you train.
How heavy should adjustable dumbbells go?
Choose a set that goes past the heaviest weight you use now, so you've room to progress. Check the range on the maker's page.
Do adjustable dumbbells come with a stand?
Some do and some don't. The Bowflex SelectTech sets and the Core set mention a stand sold separately, so read the product page before you order.
What is the difference between dial and plate-loaded dumbbells?
Dial and switch systems change weight in seconds. Plate-loaded systems take longer but often let you add plates later, which suits people who expect to get much stronger.
Is it safe to use adjustable dumbbells?
They're safe when you check the lock before every set, use good form and start lighter than you think. New lifters should consider a session with a qualified coach.


