Under $400 is where the well-known adjustable dumbbell brands become affordable. PowerBlock, BowFlex, NordicTrack and Core Fitness all have sets in this range, with better build quality and longer track records than most budget options.
We compared adjustable dumbbells listed under $400 on Amazon by range, increments, build and owner feedback. Prices change often, so check the current price. See how we review, or our main best adjustable dumbbells guide.
Top 3 Best Adjustable Dumbbells Under $400 at a Glance
PowerBlock Elite EXP Stage 1 (5–50 lb)
- 5–50 lb per dumbbell, 16 settings
- Expandable to 70 or 90 lb with add-on kits
- Magnetic selector pin
- Compact steel block (about 12″ x 7″ x 7″)
BowFlex Results Series SelectTech Dumbbells (Pair)
- 5–52.5 lb per dumbbell
- Quick-turn adjustment dials
- Metal plates with locking system
- Storage trays included
NordicTrack 55 lb Select-a-Weight Dumbbells
- 10–55 lb per dumbbell
- 2.5, 5 and 10 lb increments (15 settings)
- 10 lb handlebar
- Fitted storage trays
Best Adjustable Dumbbells Under $400 in 2026
| Dumbbell | Best For | Key Specs | Amazon Rating | Price |
|---|---|---|---|---|
| 1. PowerBlock Elite EXP Stage 1 (5–50 lb) | Best Overall Under $400 | 5–50 lb per dumbbell, 16 settings; Expandable to 70 or 90 lb with add-on kits; Magnetic selector pin | 4.6/5 | Check Price |
| 2. BowFlex Results Series SelectTech Dumbbells (Pair) | Best Dial Dumbbells | 5–52.5 lb per dumbbell; Quick-turn adjustment dials; Metal plates with locking system | 4.7/5 | Check Price |
| 3. NordicTrack 55 lb Select-a-Weight Dumbbells | Best 55 lb Pair | 10–55 lb per dumbbell; 2.5, 5 and 10 lb increments (15 settings); 10 lb handlebar | 4.5/5 | Check Price |
| 4. Core Fitness Adjustable Dumbbells (5–50 lb) | Best Classic Feel | 5–50 lb per dumbbell; TwistLock handle adjustment; Contoured, soft-grip handle | 4.5/5 | Check Price |
| 5. ProForm Rapid Adjust Dumbbells (10–50 lb) | Best for Guided Workouts | 10–50 lb per dumbbell; 10 lb increments; Steel construction with storage trays | 4.7/5 | Check Price |
| 6. CAP ADJUSTABELL Quick-Select Dumbbells (10–55 lb) | Best No-Knob Design | 10–55 lb in 5 lb steps; No knobs, pins or levers; Anti-roll hex shape | 4.5/5 | Check Price |
| 7. Rendpas Adjustable Dumbbells + Bench Set | Best Dumbbell and Bench Bundle | 10–55 lb dumbbells, 1-second switch; Knurled steel handles; 800 lb bench, 10 backrest angles | 4.5/5 | Check Price |
| 8. Mouldbody 10-in-1 Adjustable Dumbbells (50 lb Pair) | Best Value Pick | Pair, 5.5–50 lb each in 10 settings; One-hand dial adjustment; Steel weight plates with lock | 4.5/5 | Check Price |
1. PowerBlock Elite EXP Stage 1 (5–50 lb) – Best Overall Under $400
- 5–50 lb per dumbbell, 16 settings
- Expandable to 70 or 90 lb with add-on kits
- Magnetic selector pin
- Compact steel block (about 12″ x 7″ x 7″)
Pros
- ✓ Expandable as you get stronger
- ✓ Very compact footprint
- ✓ Durable steel construction
Cons
- ✗ Blocky shape takes getting used to
- ✗ Expansion kits cost extra
The PowerBlock Elite EXP Stage 1 listed at about $400 when we checked. It covers 5 to 50 lb per dumbbell in 16 settings and can be expanded to 70 or 90 lb with add-on kits later.
The steel block design is durable and very compact, so this is a set you are unlikely to outgrow or replace.
Best for: Lifters who want a long-term set that can grow with them.
May not fit: People who dislike the block shape.
2. BowFlex Results Series SelectTech Dumbbells (Pair) – Best Dial Dumbbells
- 5–52.5 lb per dumbbell
- Quick-turn adjustment dials
- Metal plates with locking system
- Storage trays included
Pros
- ✓ Trusted dial-select design
- ✓ Replaces about 15 pairs of dumbbells
- ✓ Sold as a pair with trays
Cons
- ✗ Plates need the tray to change weight
- ✗ Long handles take up some room
BowFlex’s Results Series SelectTech pair listed at about $329, below its usual list price. Quick-turn dials take each dumbbell from 5 to 52.5 lb.
Metal plates with a locking system and included storage trays make this one of the most trusted dial designs on the market.
Best for: Lifters who want a proven dial system from a known brand.
May not fit: Anyone who needs more than 52.5 lb.
3. NordicTrack 55 lb Select-a-Weight Dumbbells – Best 55 lb Pair
- 10–55 lb per dumbbell
- 2.5, 5 and 10 lb increments (15 settings)
- 10 lb handlebar
- Fitted storage trays
Pros
- ✓ Small 2.5 lb steps for steady progress
- ✓ Holds up to 55 lb
- ✓ Storage trays included
Cons
- ✗ Long shape at heavy settings
- ✗ Pricier than budget dial sets
NordicTrack’s Select-a-Weight dumbbells listed at about $399 for the pair. They range from 10 to 55 lb with 2.5, 5 and 10 lb increments across 15 settings.
A wide range and fitted storage trays make them a good all-round choice.
Best for: Lifters who want just over 50 lb with fine steps.
May not fit: Shoppers who want something compact.
4. Core Fitness Adjustable Dumbbells (5–50 lb) – Best Classic Feel
- 5–50 lb per dumbbell
- TwistLock handle adjustment
- Contoured, soft-grip handle
- Compact cradle storage
Pros
- ✓ Quick, simple handle twist
- ✓ Comfortable grip
- ✓ Long track record on Amazon
Cons
- ✗ Plastic parts need careful handling
- ✗ Not designed for dropping
Core Fitness dumbbells listed at about $350. The TwistLock handle picks up only the plates you choose, so each dumbbell feels balanced like a fixed one.
The contoured soft-grip handle is comfortable for higher-rep sets.
Best for: Lifters who want a traditional dumbbell feel.
May not fit: Buyers who want the fastest dial.
5. ProForm Rapid Adjust Dumbbells (10–50 lb) – Best for Guided Workouts
- 10–50 lb per dumbbell
- 10 lb increments
- Steel construction with storage trays
- Works with iFIT classes
Pros
- ✓ Durable steel build
- ✓ iFIT workouts available
- ✓ Simple, quick adjustment
Cons
- ✗ Large 10 lb jumps
- ✗ iFIT requires a subscription
ProForm’s Rapid Adjust dumbbells listed at about $349. They go from 10 to 50 lb in 10 lb steps and work with iFIT classes.
Steel construction and storage trays add durability, though the jumps are large.
Best for: iFIT users and guided-workout fans.
May not fit: Lifters who need small increments.
6. CAP ADJUSTABELL Quick-Select Dumbbells (10–55 lb) – Best No-Knob Design
- 10–55 lb in 5 lb steps
- No knobs, pins or levers
- Anti-roll hex shape
- Knurled steel handle
Pros
- ✓ Patented quick-select system
- ✓ Hex shape doesn’t roll
- ✓ Steel handle
Cons
- ✗ Bulkier than some dial sets
- ✗ Premium price
CAP’s ADJUSTABELL Quick-Select dumbbells listed at about $390. They change from 10 to 55 lb in 5 lb steps with no knobs, pins or levers.
The anti-roll hex shape and knurled steel handle feel like gym dumbbells.
Best for: Lifters who want simple, sturdy adjustment.
May not fit: People who need 2.5 lb steps.
7. Rendpas Adjustable Dumbbells + Bench Set – Best Dumbbell and Bench Bundle
- 10–55 lb dumbbells, 1-second switch
- Knurled steel handles
- 800 lb bench, 10 backrest angles
- Extended headrest
Pros
- ✓ Complete starter home gym
- ✓ Sturdy bench included
- ✓ Knurled handles
Cons
- ✗ Heavy package (133 lb)
- ✗ Takes more space
Rendpas bundles 10–55 lb adjustable dumbbells with an 800 lb capacity bench for about $400.
If you are starting from zero, this saves you from buying the bench separately.
Best for: New home gyms that need both.
May not fit: People who already own a bench.
8. Mouldbody 10-in-1 Adjustable Dumbbells (50 lb Pair) – Best Value Pick
- Pair, 5.5–50 lb each in 10 settings
- One-hand dial adjustment
- Steel weight plates with lock
- Storage tray included
Pros
- ✓ 10 settings up to 50 lb
- ✓ Pair at a mid-range price
- ✓ Click-lock with visible alignment
Cons
- ✗ Newer brand with a short track record
- ✗ Must confirm the click before lifting
If you would rather keep money for accessories, the Mouldbody 50 lb pair listed at about $240 and offers 10 settings up to 50 lb.
It is a newer brand, but it gives you a full 50 lb pair for much less.
Best for: Budget-aware lifters.
May not fit: Buyers who want a long track record.
How to Choose Adjustable Dumbbells Under $400
Pick a Proven Brand
In this range you can choose established names with long track records and better support.
Think Long Term
Expandable sets like PowerBlock Elite EXP let you add weight later instead of buying a new set.
Compare Increments
NordicTrack offers 2.5 lb steps, while ProForm uses 10 lb jumps. Smaller steps help steady progress.
Consider Shape and Size
Block designs are compact; dial sets have longer handles that need more room.
Bundle if Starting Fresh
A bundle like Rendpas includes a bench. Otherwise see our strength training picks.
FAQ
What are the best adjustable dumbbells under $400?
The PowerBlock Elite EXP is our top pick for its compact design and expandability. BowFlex SelectTech is the best dial option.
Are PowerBlocks better than Bowflex?
PowerBlocks are more compact and expandable. Bowflex dials are quicker to read and feel more like regular dumbbells.
Is it worth paying more for a known brand?
Often yes, because established brands usually have better quality control, warranties and support.
Do I need 55 lb dumbbells?
Intermediate lifters often benefit from going past 50 lb for presses and rows.
Final Verdict
The PowerBlock Elite EXP is the best adjustable dumbbell under $400, with a compact, expandable 5–50 lb design. BowFlex SelectTech is the best dial set, and NordicTrack gives you the most weight.
Want even more options? See our under $500 and over 50 lb guides.
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