Best Adjustable Kettlebells for Home Workouts

The best adjustable kettlebells for home workouts are the Bowflex SelectTech 840 for quick weight changes, the Kettlebell Kings Adjustable Kettlebell for a more traditional competition-style feel, and a plate-loaded model such as the Bells of Steel Adjustable Kettlebell when maximum load and long-term expandability matter most.

Best adjustable kettlebells compared

An adjustable kettlebell is useful when one implement must cover swings, goblet squats, presses, rows, and carries without filling a room with fixed bells. The important distinction is not simply the maximum weight. For dynamic movements, the adjustment mechanism must stay locked, the handle must remain comfortable during repeated contact, and the unloaded bell should not become awkwardly tall or unstable.

Dimensions and available weight configurations can vary by market and generation, so check the manufacturer’s current specification sheet before ordering. The table is most useful as a comparison of design priorities: speed, range, stability, or repairability.

Our picks by training situation

Bowflex SelectTech 840: best for fast, low-friction adjustments

The SelectTech 840 covers 8 to 40 pounds through six dial-selected settings. Its main advantage is convenience: set the dial, lift the bell, and start the next exercise. That makes it particularly practical for workouts that alternate between lighter presses and heavier squats or swings.

The handle is permanently integrated into a molded outer body, so there are no plates to remove or collars to misplace. It also has a small storage footprint compared with a rack of fixed kettlebells. The trade-off is feel. The shell is bulkier than a traditional cast-iron or competition bell, and the balance can feel less natural in movements where the bell rotates around the hand.

For security, use the dial only when it is fully seated at a marked setting. Before every session, lift the bell slightly and check that no plates move independently. If you hear rattling, see a gap, or cannot turn the selector cleanly into position, do not swing it until the problem is resolved. A selector mechanism is convenient, but it is not something to force or lubricate with household oil.

Kettlebell Kings adjustable model: best for a traditional training feel

Kettlebell Kings’ adjustable kettlebell is aimed at people who want one competition-style bell with internal weight changes. Versions commonly cover approximately 12 to 32 kilograms, giving substantially more load than many selector-dial products.

The broad steel handle and consistent competition-style body are better suited to repeated swings, cleans, and snatches than an unusually tall plate-loaded design. Internal plates also keep the exterior relatively smooth, reducing the chance that a collar catches clothing or contacts the forearm.

Its disadvantage is slower adjustment. You must unload the bell, remove the retaining hardware, change the internal plates, and secure everything again. That is acceptable when you train one movement or one weight for a block, but inconvenient for a fast-changing circuit. Before dynamic work, confirm that every internal plate is seated flat and that the retaining hardware is fully tightened according to the manufacturer’s instructions.

Bells of Steel adjustable kettlebell: best for serviceability and heavier training

The Bells of Steel adjustable kettlebell uses a competition-style format and is commonly sold in a range around 12 to 32 kilograms. It is a strong candidate for users who value a steel body, a familiar kettlebell handle, and a mechanical loading system rather than a plastic selector housing.

This type of design usually takes more floor space vertically as the load changes, but its exterior remains closer to the dimensions of a standard competition bell. It is also easier to inspect: you can see the plates, threaded components, or locking hardware rather than relying on an enclosed dial assembly.

That inspectability matters over years of use. Threads can collect chalk and grit, and locking pins or collars can wear if repeatedly cross-threaded. Clean the contact surfaces with a dry cloth, avoid dropping the loaded bell, and replace damaged hardware rather than improvising with a generic bolt.

How securely do adjustable kettlebells lock during swings?

A properly secured adjustable kettlebell should not click, shift, or change shape during a controlled swing. However, different mechanisms have different failure risks:

• Dial-selected designs: fastest to use, but the selector must be completely engaged. They are best when convenience outweighs the more enclosed, proprietary construction.
• Internal plate systems: offer a more conventional bell shape and can be very secure, but only when every plate is seated and the retaining hardware is tight.
• Spin-lock plate loaders: can be economical, yet collars may loosen from repeated impact or vibration unless the design includes a positive locking feature.
• Pin-secured systems: are quick and visibly verifiable, but the pin must pass fully through its hole and have its retaining clip or latch engaged.

For swings, test a new adjustment with several slow rehearsal movements before adding speed. Stop immediately if the bell rattles, rotates unevenly, or feels different from the previous repetition. Do not use an adjustable bell for ballistic work if the manufacturer restricts that movement or if the locking system is not designed for impact and repeated acceleration.

Weight range: avoid paying for capacity you will not use

Weight range should match your actual progression, not an optimistic maximum. A beginner who currently uses 12 pounds may need 20 to 24 pounds for lower-body work, while a stronger trainee may quickly outgrow a 40-pound ceiling for two-handed swings.

As a practical example, suppose a selector bell replaces four fixed bells costing about $60 each. That is roughly $240 of avoided equipment, before considering the adjustable bell’s price. If you train three times per week for two years, the equipment receives about 312 sessions. A $200 bell therefore costs approximately $0.64 per session before shipping and accessories. The calculation favors an adjustable model when it genuinely replaces several weights; it favors fixed bells when you will use only one or two settings.

Handle comfort and storage details that listings miss

Measure the handle opening, not only the outside width. A comfortable handle needs enough room for your hand without forcing the wrist against the top of the bell. Broad, smooth competition handles generally suit two-handed swings and cleans. Molded handles can be comfortable for dry hands but may feel slippery with heavy chalk or sweat.

Also measure the bell at its tallest setting. A compact footprint is not useful if the unit must be stored under a shelf that is only 10 inches high. Keep adjustable bells on a firm, level surface rather than on carpet where small plates or locking parts can sit unevenly.

Maintenance and common mistakes

• Wipe sweat and chalk from the handle after training to slow corrosion and reduce slipperiness.
• Inspect collars, pins, threads, and selector housings before every session.
• Never change the load while the bell is resting on an uneven surface.
• Do not exceed the stated maximum or combine unapproved plates with the locking system.
• Avoid dropping adjustable models; impact can bend threads, crack housings, or shift internal plates.
• Use a rubber mat if your floor and the manufacturer’s instructions allow it, but do not let a soft mat hide an unstable base.

Final verdict

Choose the Bowflex SelectTech 840 if quick changes and compact storage are your priorities. Choose a Kettlebell Kings or Bells of Steel competition-style adjustable kettlebell if swing quality, a familiar handle, and a higher training ceiling matter more than changing weight between every set. A plate-loaded adjustable type is the value choice when you already own compatible plates, but inspect its locking system carefully before using it for ballistic movements.