Skip to content
BuyOnceRight: buy once, buy right
Adjustable Dumbbells · Buying guide

Adjustable Dumbbells Buying Guide: Weight Range, Mechanism, and Price

A full spec-by-spec buying guide to adjustable dumbbells, covering weight range, locking mechanism, increment size, footprint, price tiers, and how the major brands (Bowflex, PowerBlock, NordicTrack,

On this page

Weight Range by Tier

Entry tier (5 to 40 lb total, plate-and-collar): Amazon Basics-style sets.

Enough for beginners, light accessory work, and general fitness, not enough for intermediate compound lifts.

Mid tier (5 to 50/55 lb per hand): Core Home Fitness (50 lb) and NordicTrack Select-a-Weight (55 lb).

Covers the large majority of general strength training for most lifters.

High tier (50 to 90 lb per hand): Bowflex SelectTech 552 tops at 52.5 lb; PowerBlock Elite EXP starts at 50 lb (Stage 1) and expands to 70 lb (Stage 2) and 90 lb (Stage 3) with add-on kits.

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.

Footprint and Storage

Block-shaped pin systems (PowerBlock) hold the narrowest handle-to-handle width, an advantage for floor pressing and tight spaces.

Dial and cradle systems built around round plates (Bowflex, NordicTrack, Core Home Fitness) widen more as weight increases, and generally require their tray or stand nearby to function correctly.

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.

See Also

How to Choose an Adjustable Dumbbell, step-by-step decision framework Best Adjustable Dumbbells for Heavy Lifting

Put it into practice

Top adjustable dumbbells we recommend

See all
Answers

Frequently asked 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 pin 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 within 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 uncertain 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 & best picks