Weight Range by Tier
Enough for beginners, light accessory work, and general fitness, not enough for intermediate compound lifts.
Covers the large majority of general strength training for most lifters.
Increment Size
NordicTrack's Select-a-Weight adjusts in 2.5, 5, and 10 lb steps, the finest increments among the four anchor products, useful for gradual progressive overload.
Bowflex SelectTech 552 adjusts in 2.5 lb steps across its full range.
PowerBlock and Core Home Fitness both step in larger jumps at points in their range, which is less of a concern for compound lifts but can matter for smaller accessory movements like lateral raises.
Price Tiers
Right for beginners and light general fitness on a tight budget.
Right for most home gym buyers who want faster changes than a plate-and-collar set without paying premium dial-system prices.
Right for buyers prioritizing adjustment speed, mechanism durability, and, for PowerBlock, a growth path to higher weight.
Our picks
Products we recommend
As an Amazon Associate I earn from qualifying purchases. Picks are based on manufacturer specs, independent reviews and owner reports.
Core Home Fitness
TwistLock is one of the simplest mechanisms to learn, no marks or numbers to line up
- 5 to 50 lb per hand
- TwistLock one-hand cradle adjustment
- Contoured soft-grip handle
- Stand included
✓ Pros
- TwistLock is one of the simplest mechanisms to learn, no marks or numbers to line up
- 50 lb ceiling comfortably covers a beginner's first one to two years
- Lower price than Bowflex or PowerBlock for a first serious purchase
✕ Cons
- Only works correctly with the dumbbell seated in its stand
- Fewer accessories than Bowflex's broader ecosystem
PowerBlock
Highest achievable ceiling in this list at 90 lb per hand with full expansion
- 5 to 50 lb per hand, expandable to 90 lb with Stage 2 and 3 kits
- Pin-selector weight system
- Steel internals for durability under heavy loads
✓ Pros
- Highest achievable ceiling in this list at 90 lb per hand with full expansion
- Steel internals hold up well under repeated heavy loading
- Staged buying lets you add capacity as your strength grows
✕ Cons
- Full 90 lb capacity requires buying both expansion kits on top of the base unit
- Pin selector needs deliberate, full seating under heavy loads
Bowflex
Highest ceiling in this list, room to grow well past a beginner's first year without upgrading
- 5 to 52.5 lb per hand, 2.5 lb increments
- Dial-turn selector
- Molded storage trays included
✓ Pros
- Highest ceiling in this list, room to grow well past a beginner's first year without upgrading
- Widest parts and community support if you have questions starting out
- Fine 2.5 lb increments make it easy to find a comfortable starting weight
✕ Cons
- Costs significantly more than the budget picks in this list
- More dumbbell than most true beginners need on day one
FAQ
Common questions
Do I need a bench in addition to adjustable dumbbells?
A large share of effective strength training, including presses done on the floor, rows, curls, lunges, and carries, works without a bench. A bench adds value for incline and decline pressing variations and for stability during single-arm work, but it's reasonable to buy dumbbells first and add a bench later if your program calls for it.
Are adjustable dumbbells as durable as fixed-weight dumbbells?
The plate-holding mechanisms (dials, pins, collars) are the parts that eventually show wear, typically after several years of regular use, not the weight itself. Fixed dumbbells have no moving parts and effectively don't wear out. In practice, major brands' dial and p in mechanisms hold up well for years of home use, and most sell replacement parts (dials, pins, collars) individually rather than requiring a full replacement when a part does wear out.
Is it worth buying an expandable system versus buying max weight upfront?
If you're confident you'll need the higher weight with in a year or two, buying an expandable system like PowerBlock's Stage 1 with a planned Stage 2 or 3 kit later, or a higher-ceiling unit like the Bowflex 552 upfront, avoids paying for a full second set. If your strength trajectory is uncerta in or you're a beginner, starting with a lower-ceiling, lower-cost set (Core Home Fitness or Amazon Basics) and reassessing in 6 to 12 months is the more capital-efficient path for most buyers.
Keep researching
Related guides & comparisons
