When people compare adjustable dumbbell sets, the real choice is usually between a smooth, familiar lifting experience and a compact system that can grow with heavier training. The Bowflex SelectTech 552 and PowerBlock Elite EXP represent those priorities well: the Bowflex changes weight with selection dials and tops out at 52.5 pounds per dumbbell, while the PowerBlock uses a pin selector, takes up less room, and can be expanded with compatible stages.
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ALTLER Adjustable Dumbbell Set with Tray, Pair
- ✔ Set: Pair
- ✔ Listed set weight: 52 pounds
- ✔ Adjustment: Dial-adjustable

UNNMIIY Adjustable 5-in-1 Dumbbell Set, 2–90 lb Options
- ✔ Set type: 5-in-1 multifunctional dumbbell set
- ✔ Dumbbell adjustment: 2–22.5 lb per dumbbell
- ✔ Configurations: Dumbbells, barbell, kettlebells, and push-up stands

FITPLAM Adjustable 5-in-1 Dumbbell Set
- ✔ Configurations: Dumbbells, kettlebell, barbell, weight plates, and push-up stands
- ✔ Dumbbell weights: 6, 8, 10, 13, 15, 17, or 22.5 lb each
- ✔ Barbell range: 7.5–45.8 lb
Both replace a rack of fixed dumbbells and support a broad range of home workouts, but neither is a universal winner. The Bowflex is easier to approach if you want conventional-looking handles and quick changes between sets. The PowerBlock is the stronger fit for limited floor space, heavier lifting ambitions, or a set that can expand over time. The decision turns on fit and future needs as much as the weight numbers: the PowerBlock’s compact frame feels different in the hand, and its expansion kits add cost.
At a Glance
| Criteria | Bowflex SelectTech 552 | PowerBlock Elite EXP | Winner |
|---|---|---|---|
| Weight range | 5–52.5 lb per dumbbell, in 2.5 lb steps through 25 lb, then larger increments | 5–50 lb per dumbbell in the base configuration; compatible expansion kits raise capacity | B |
| Adjustment method | Two selection dials; set both dials to the desired load | Selector pin chooses the load; adjustment is quick once the set is familiar | A |
| Footprint and storage | Bulky cradles; needs a stable storage surface and room to lift the weights out | Very compact, with a small stand footprint and tidy storage | B |
| Grip and lifting feel | Conventional handle and familiar dumbbell profile; broad weight ends can affect some movements | Open, cage-like frame around the hand; secure but less like a standard dumbbell | Depends |
| Expansion potential | Fixed maximum; cannot be expanded beyond 52.5 lb per dumbbell | Expandable with compatible kits, subject to model and kit availability | B |
| Durability and handling | Plastic components and plates require careful placement back in the cradle; not suited to dropping | Robust steel construction, but still should not be dropped or used carelessly | B |
| Value | Good value for moderate-load home training if the range is enough | Higher initial or expanded cost can pay off for space savings and heavier training | Depends |
ALTLER Adjustable Dumbbell Set with Tray, Pair

For a buyer who mainly wants a pair of adjustable weights for conventional strength exercises, ALTLER is the most direct choice in this lineup. Its one-handed dial is the key distinction: changing the setting is designed to be simpler than taking plates off and securing them again, as required by the UNNMIIY and FITPLAM convertible sets. That can make the set a better match for workouts that alternate between movements such as curls, raises, lunges, and shrugs.The included tray and safety locking system give the set a defined home between exercises and are intended to secure the weights and tray during use. At 52 pounds for the pair, it is a compact option for general strength work, but the supplied specifications do not state the weight increments or clarify the load available on each dumbbell. We would not choose it if knowing the exact progression steps is essential before purchase. Unlike the 5-in-1 alternatives, it also does not convert into a barbell, kettlebell, or push-up stands.That narrower purpose is also its advantage: there are fewer configurations to manage. Compared with FITPLAM, ALTLER prioritizes a quicker adjustment method over a stated ultra-small storage footprint; compared with UNNMIIY, it avoids making several exercise formats part of the buying decision. It earns our overall spot for focused lifting, provided buyers confirm the available settings if precise load progression is a priority.
Pros:
- One-handed dial is designed for quick weight changes.
- Tray provides a dedicated storage and handling point.
- Safety locking system is intended to secure the weights and tray.
- Compact pair suits a range of basic strength exercises.
Cons:
- Available weight increments are not specified in the supplied details.
- Does not offer the multi-configuration options listed for UNNMIIY and FITPLAM.
Best for: Home exercisers who want a compact adjustable pair for familiar strength exercises and prefer dial-based changes over reconfiguring plates.
Not ideal for: Buyers who need published weight increments, a clearly itemized per-dumbbell load range, or one set that converts into barbell and kettlebell configurations.
Bottom line: We recommend ALTLER for straightforward strength training when fast dial adjustment matters more than exercise-format versatility.
“We recommend ALTLER for straightforward strength training when fast dial adjustment matters more than exercise-format versatility.”
UNNMIIY Adjustable 5-in-1 Dumbbell Set, 2–90 lb Options

UNNMIIY is the broadest-format option for shoppers who want one kit to support more than dumbbell exercises. It converts into dumbbells, a barbell, kettlebells, and push-up stands, giving it more possible roles than the focused ALTLER pair. That flexibility can make sense when floor space or equipment choices are limited and the workout plan genuinely uses these different setups.Its stated dumbbell adjustment range is 2 to 22.5 pounds per dumbbell, with detachable plates for storage. Textured ABS bars, reinforced locking nuts, and a foam-padded connecting rod address grip and handling across the different configurations. But the listed weight pieces use cement and iron sand rather than solid metal, a material distinction buyers should weigh when comparing it with ALTLER’s cast-iron-and-PE description. The supplied information also leaves an important purchasing question: the title says “2–90 lb options,” while the description gives a per-dumbbell range of 2–22.5 pounds. We would verify exactly what the selected configuration includes rather than infer a total set weight from the title.Compared with FITPLAM, UNNMIIY also offers four stated workout formats, but FITPLAM provides more explicit separate ranges for its barbell and kettlebell configurations and gives a precise storage footprint. UNNMIIY’s appeal is adaptability across exercise types, not a clearly documented advantage in storage or maximum working load. Choose it when the conversions are useful enough to justify handling plates and checking the package details.
Pros:
- Converts into dumbbells, a barbell, kettlebells, and push-up stands.
- Detachable plates allow the set to be stored in parts.
- Textured bars and reinforced locking nuts support grip and plate security.
- Foam padding on the connecting rod adds a cushioned contact surface.
Cons:
- Weight pieces are made with cement and iron sand rather than solid metal.
- The title’s “2–90 lb options” wording does not align clearly with the stated per-dumbbell range.
- Changing configurations involves more handling than ALTLER’s dial adjustment.
Best for: Home trainees seeking one kit for dumbbell, barbell, kettlebell, and push-up-stand exercises, with a stated 2–22.5-pound range per dumbbell.
Not ideal for: Buyers who want a quick dial adjustment, solid-metal weight pieces, or an unambiguous description of the exact weight configuration included.
Bottom line: We favor UNNMIIY when several exercise formats matter most, but buyers should confirm the exact included weight option before ordering.
“We favor UNNMIIY when several exercise formats matter most, but buyers should confirm the exact included weight option before ordering.”
FITPLAM Adjustable 5-in-1 Dumbbell Set

When storage space is the deciding factor, FITPLAM has the clearest practical claim: its listed storage requirement is less than two square feet. It combines dumbbells, a kettlebell, a barbell, weight plates, and push-up stands, making it the most clearly specified choice for someone trying to keep several training formats within a small home workout area. The product information also provides separate stated ranges for its different configurations, which gives buyers more to compare than UNNMIIY’s ambiguous “2–90 lb options” wording.FITPLAM lists dumbbell choices of 6, 8, 10, 13, 15, 17, or 22.5 pounds each, a barbell range of 7.5–45.8 pounds, and a kettlebell range of 3.8–23 pounds. Those figures describe several ways to train, but they should not be mistaken for a continuously adjustable dial. The set uses plates, dual-lock nuts, and a padded barbell connector, so changing formats or loads can take time. This is a meaningful contrast with ALTLER, whose one-handed dial is better suited to rapid transitions between standard dumbbell exercises.The dual-lock nuts and non-slip grips address stability and handling, while a steel-core connector with 25 mm of high-density foam is specified for barbell use. The tradeoff is that assembly and reconfiguration are part of owning this kit, and its listed maximum barbell weight is 45.8 pounds. Compared with UNNMIIY, FITPLAM is easier to assess for footprint and configuration-specific loads; compared with ALTLER, it buys more exercise options at the cost of simplicity. We would pick it for a small space and varied routine, not for the fastest possible weight changes.
Pros:
- Stores in a stated footprint of less than two square feet.
- Supports dumbbell, kettlebell, barbell, weight-plate, and push-up-stand configurations.
- Lists separate ranges for its dumbbell, kettlebell, and barbell setups.
- Dual-lock nuts and non-slip grips address plate security and handling.
Cons:
- Assembly and switching configurations may interrupt a workout.
- The listed barbell maximum is 45.8 pounds.
- Plate-based changes are less direct than ALTLER’s one-handed dial.
Best for: People building a varied home routine in a small workout area who want stated dumbbell, barbell, and kettlebell weight ranges.
Not ideal for: Lifters who prioritize rapid changes between sets, want a single-purpose adjustable dumbbell pair, or need a barbell load above the listed 45.8 pounds.
Bottom line: We recommend FITPLAM for compact, varied home training when clear configuration ranges matter more than fast adjustments.
“We recommend FITPLAM for compact, varied home training when clear configuration ranges matter more than fast adjustments.”
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Key Differences
The most consequential difference is not the small gap in starting or maximum weight in their base configurations; it is what happens after you outgrow the starting setup. A Bowflex 552 is a defined 5–52.5-pound system. That covers many general strength routines, but there is no compatible path to add heavier plates. The PowerBlock Elite EXP starts at 5–50 pounds, then can be increased with expansion kits. For users whose lifts are already climbing, that upgrade route can make the PowerBlock the more practical long-term purchase, even though expansion costs extra.
For day-to-day use, Bowflex’s dial system and conventional handle may feel more immediately familiar. PowerBlock’s selector pin is also straightforward, but the surrounding frame changes the sensation of holding and moving the weight. In return, its compact shape takes less storage space and is easier to fit into a crowded training area. The tradeoff is clear: choose Bowflex for familiar handling and convenient weight changes within a fixed range; choose PowerBlock for a smaller footprint and room to grow.
Detailed Comparison
Weight range and progression (PowerBlock Elite EXP wins — moderate)
The base Bowflex 552 reaches 52.5 pounds per dumbbell, slightly above the PowerBlock Elite EXP’s 50-pound base limit. That is a small advantage for someone whose current program sits near the top of the range, but it does not make the Bowflex the better long-term choice for everyone. PowerBlock expansion kits can raise its capacity, while the Bowflex 552 remains capped. PowerBlock wins for progression by a moderate margin for lifters likely to need heavier weights; Bowflex has a minor edge for buyers who only compare the unexpanded maximum.
Changing weights between exercises (Bowflex SelectTech 552 wins — moderate)
The Bowflex uses selection dials, so you set the desired load on each side before lifting the dumbbell from its cradle. The PowerBlock uses a selector pin. Both are faster and tidier than changing conventional plates, though users should return the weights correctly to their trays or stands before adjusting. For circuits or supersets with frequent load changes, Bowflex’s dial interface is often the more intuitive choice. Bowflex wins by a minor-to-moderate margin; the practical difference is convenience, not whether either system can support varied workouts.
Storage and training-space needs (PowerBlock Elite EXP wins — major)
PowerBlock’s compact block form occupies less space than the Bowflex’s cradles and broader dumbbell shape. That advantage matters in apartments, multipurpose rooms, and workout corners where equipment must be stored close to a wall or moved around. Bowflex can still replace a large collection of fixed dumbbells, but the cradle needs a stable surface and the user needs room to lift the weights out. PowerBlock wins clearly for tight spaces; the difference is major when the available footprint is a deciding constraint.
Grip and exercise feel (moderate difference)
The Bowflex has a more conventional dumbbell handle, which is likely to feel familiar for presses, curls, and many accessory movements. The PowerBlock’s hand sits inside its distinctive frame, which some lifters find secure and others find restrictive or awkward, particularly during certain movements where the weight approaches the forearm. Bowflex’s wider ends can also affect clearance or contact during some exercises. Neither design suits every hand or movement. This is a personal-fit decision, so try the PowerBlock style if possible before buying; there is no fair universal winner.
Ability to expand (PowerBlock Elite EXP wins — major)
The Elite EXP is designed to accept compatible expansion kits, allowing owners to add capacity rather than replace the whole set when training demands increase. Kit compatibility and availability should be checked for the exact model, and each expansion raises the total investment. Bowflex’s 552 has no comparable upgrade path. PowerBlock wins by a major margin for buyers who expect to outgrow 50 pounds per hand; if that limit will be enough, the feature may have little value in practice.
Construction and care (PowerBlock Elite EXP wins — minor)
PowerBlock’s steel-based construction gives it a robust feel, while both sets rely on moving components and should be handled with care. Bowflex’s dial-and-cradle system calls for especially careful re-racking: the dumbbell must sit properly before changing its selection, and dropping it can damage components. PowerBlock should not be treated as drop-proof simply because its frame feels solid. Neither is a substitute for fixed dumbbells designed for rough handling. PowerBlock has a modest edge in perceived sturdiness, but both reward controlled use.
Overall value (moderate difference)
Bowflex can be the better value when its fixed range meets the buyer’s needs: one purchase covers many common home exercises, and the familiar design avoids paying for expandability that may never be used. PowerBlock costs more if expansion is added, but the upgrade path and smaller footprint can make that premium worthwhile for space-constrained users or stronger lifters. Compare the full cost of the base set, stand if needed, and any expansion kit rather than judging by the starter price alone. The winner depends on use: Bowflex for adequate-range simplicity, PowerBlock for long-term capacity and compact storage.
Bowflex SelectTech 552: Pros and Cons
Pros:
- Familiar, conventional dumbbell handle and shape
- Dial-based selection is intuitive for many users
- 52.5-pound maximum slightly exceeds the PowerBlock base configuration
- Strong value when a fixed range is sufficient
Cons:
- Cannot be expanded beyond 52.5 pounds per dumbbell
- Larger cradle and storage footprint
- Requires careful re-racking and should not be dropped
- Broad ends can interfere with clearance in some exercises
PowerBlock Elite EXP: Pros and Cons
Pros:
- Compact storage footprint suits small training spaces
- Compatible expansion kits provide a route to heavier loads
- Selector-pin changes are quick once the system is familiar
- Robust steel construction and efficient use of space
Cons:
- Cage-like grip can feel unfamiliar or restrictive
- Base maximum is 50 pounds per dumbbell
- Expansion kits add to the total cost
- Distinctive shape may be less comfortable for some exercises or users
Who Should Choose What
Choose Bowflex SelectTech 552 if:
- You want a conventional dumbbell feel and prefer a dial-based adjustment system.
- Your routine is unlikely to require more than 52.5 pounds per hand.
- You want a capable home set without paying for expansion capacity you may not use.
Choose PowerBlock Elite EXP if:
- Floor space is limited and compact storage is a priority.
- You expect to lift more than 50 pounds per hand and want an upgrade path.
- You value a robust, compact design and are comfortable with its framed grip.
Skip both if: Skip both if your training requires very heavy loads beyond the available or affordable expansion range, frequent dropping, or the feel and durability of fixed dumbbells. A plate-loaded adjustable set or fixed dumbbell rack may fit that use better.
Value for Money
Paying more for the PowerBlock makes sense when its compact footprint solves a real storage problem or its expansion kits let you keep training with the same system as your strength increases. In those cases, the premium buys useful capacity rather than a cosmetic upgrade. Check the price of the complete setup you expect to use, since the base set and later expansion stages have separate costs.
If you expect to stay within the Bowflex 552’s range, paying extra for PowerBlock expansion may not return much. The Bowflex is better value for general home training when conventional handling and quick dial changes matter more than future capacity. Conversely, buying Bowflex solely because its base maximum is 2.5 pounds higher misses the larger distinction: it has no expansion path. For users near their current limit, PowerBlock is the more defensible long-term value; for users with moderate loads and a fixed budget, Bowflex is the sensible buy.
Final Verdict
For most buyers choosing between these two sets, the PowerBlock Elite EXP is the stronger long-term purchase: it takes less space and can grow with heavier training. Choose it if you are comfortable with the framed grip and will use either its compact design or expansion path. Choose the Bowflex SelectTech 552 if a traditional dumbbell feel and convenient dial selection matter more, and 52.5 pounds per hand will cover your workouts for the foreseeable future.
The biggest deciding factor is whether you expect to outgrow the base weight range. If not, Bowflex offers a simpler fit and better value. If yes—or if every inch of storage matters—PowerBlock is worth the extra cost. Do not pay for expansion on the assumption that you might need it someday; buy it when heavier progression is a credible part of your plan.
Frequently Asked Questions
Which adjustable dumbbell set is better for a small apartment?
The PowerBlock Elite EXP is the better fit for a small apartment because its compact form takes less storage space. Allow room to lift it safely and use its stand or storage arrangement, but it has the footprint advantage over the Bowflex cradle setup.
Can PowerBlock Elite EXP get heavier than the Bowflex 552?
Yes. The Elite EXP can be increased with compatible expansion kits, while the Bowflex 552 is capped at 52.5 pounds per dumbbell. Check the exact model and kit compatibility before purchasing, and include the expansion cost in your comparison.
Is the Bowflex 552 or PowerBlock easier to adjust?
The Bowflex’s dials may feel more intuitive if you prefer a familiar selector interface. PowerBlock uses a pin that selects the load and can also be quick once you know the system. Both require correct placement in the cradle or stand before changing weights.
Are either of these sets suitable for dropping?
No. Treat both as controlled-use home equipment, not as dumbbells designed to be dropped. Dropping can damage adjustment parts, plates, or the supporting structure, and may create a safety risk.
