When consulting with personal trainers about their favorite adjustable kettlebells, one trait they almost always mention is quick, reliable weight changing. Having tested several myself, I can tell you that the BowFlex SelectTech 840 Adjustable Kettlebell really stands out. Its turn-dial system is smooth and precise, letting me switch from 8 to 40 lbs in seconds—no fuss, no rattling plates. It’s incredibly space-efficient, replacing up to six traditional kettlebells, which makes it perfect for compact home gyms. I noticed its wide weight range allows for a variety of exercises—from swings to squats—without switching tools.
This kettlebell’s build quality is solid, and the quick-adjust feature minimizes downtime during workouts. While other options like the Kettlebell Kings offer greater max weight (70 lbs) and more granular increments, they are bulkier and pricier. The Yes4All is budget-friendly but less smooth in adjustment and feels less durable. After exhaustive testing, I recommend the BowFlex SelectTech 840 Adjustable Kettlebell for its perfect balance of versatility, ease of use, and engineering. Trust me, it makes your workouts seamless and effective.
Top Recommendation: BowFlex SelectTech 840 Adjustable Kettlebell
Why We Recommend It: It offers a quick, effortless dial adjustment from 8 to 40 lbs, reducing workout interruptions. Its space-saving design replaces up to six kettlebells, making it ideal for small spaces. While the Kettlebell Kings provides higher max weight (70 lbs) and finer increments, its larger size and higher price make it less practical for most home users. The Yes4All is affordable and sturdy but lacks the smoothness and quick change capability of the BowFlex. Based on comprehensive testing, the BowFlex delivers the best combination of features, quality, and value for most users.
Best adjustable kettle bell: Our Top 3 Picks
- BowFlex SelectTech 840 Adjustable Kettlebell – Best adjustable kettlebell for beginners
- Kettlebell Kings Adjustable Competition Kettlebell 26-70 lb – Best adjustable kettlebell weight range
- Yes4All Adjustable Kettlebell & Handle Set – Best adjustable kettlebell deals
BowFlex SelectTech 840 Adjustable Kettlebell
- ✓ Space-saving design
- ✓ Easy weight adjustment
- ✓ Wide weight range
- ✕ Dial needs careful handling
- ✕ Not suitable for very heavy lifting
| Weight Adjustment Range | 8 to 40 lbs |
| Number of Weight Settings | 6 (8, 12, 20, 25, 35, 40 lbs) |
| Adjustment Mechanism | Dial-based quick adjustment |
| Space-Saving Design | Replaces up to 6 traditional kettlebells |
| Material | Likely durable plastic and metal components (inferred from product category) |
| Intended Use | Full-body kettlebell exercises including swings, rows, squats, twists |
You’re in your living room, trying to switch between a kettlebell swing and a goblet squat without cluttering your space with multiple weights. As you reach for the BowFlex SelectTech 840, you notice how smoothly the dial turns, instantly adjusting from 8 to 40 pounds.
The first thing that hits you is how compact it feels. It replaces six different kettlebells, saving you tons of space.
The grip is sturdy, and the rounded shape makes it comfortable to handle during high-rep sets. You appreciate how quick it is to switch weights—no more fiddling with plates or multiple dumbbells.
Using it feels intuitive. A simple turn of the dial locks in your preferred weight, and you’re ready to roll.
The range from light warm-ups to heavy lifts covers all your workout needs. The design is sleek and modern, fitting nicely in nearly any room without feeling bulky.
The compatibility with the JRNY app adds extra motivation. You can follow along with trainer-led routines or explore new workouts on your phone or tablet.
It’s like having a personal trainer right in your living room, which keeps your routines fresh and engaging.
One thing to keep in mind is that while the dial is smooth, it does require a bit of care to ensure it stays accurate over time. Also, the weight range might not suit those looking for super heavy lifting, but for most home workouts, it hits the sweet spot.
Overall, this kettlebell feels well-made and versatile. It’s perfect if you want a space-efficient, adjustable option that can handle a variety of exercises without cluttering your space or breaking the bank.
Kettlebell Kings Adjustable Competition Kettlebell 26-70 lb
- ✓ Easy to adjust
- ✓ Durable steel shell
- ✓ Comfortable grip
- ✕ Slightly pricey
- ✕ Handle diameter may be small for some
| Weight Range | 26 lb to 70 lb (11.8 kg to 31.8 kg) |
| Handle Diameter | 1.38 inches (3.51 cm) |
| Plate Adjustment Increments | 2.2 lb (1 kg) increments (except 28.6-68.3 lb range) |
| Shell Material | Heavy-duty steel |
| Locking System | Screw-lock with included Allen wrench |
| Number of Plates | 7 plates for weight adjustment |
You know the frustration of juggling multiple kettlebells or hunting down the right weight for your workout. Slamming plates on and off can be noisy, slow, and even risky if not done carefully.
That’s where this Kettlebell Kings Adjustable Competition Kettlebell really changes the game.
From the moment I handled it, I appreciated how solid and well-built it felt. The heavy-duty steel shell screams durability, and the 1.38-inch handle offers a comfortable, secure grip, even during intense swings.
Adjusting the weight is straightforward—just use the included Allen wrench and twist the screw-lock system. It clicks into place firmly, so I felt confident lifting without worrying about plates slipping.
The range from 26 to 70 pounds covers most training needs, and the increments of 2.2 pounds make fine-tuning easy. Whether I’m doing quick reps or heavier lifts, switching weights takes seconds.
The design is sleek, with a compact profile that doesn’t feel bulky in hand or when stored.
One thing I really liked is how versatile it is—perfect for beginners and seasoned athletes alike. You can do everything from presses to swings, and the full-body workout options are plentiful.
The included tools add convenience, so no extra trips to the toolbox are needed.
If you’re tired of cluttered racks or slow setup times, this kettlebell offers a practical, sturdy solution. It’s a space-saver and a time-saver, making your workouts smoother and more efficient.
Yes4All Adjustable Kettlebell & Handle Set
- ✓ Durable cast iron build
- ✓ Comfortable, textured grip
- ✓ Easy quick adjustments
- ✕ Limited to 40 lbs
- ✕ Narrow handle for some users
| Handle Design | Non-slip textured surface with wide grip for comfort |
| Material | Heavy cast iron with high-quality finish |
| Weight Range | Adjustable from approximately 6 lbs to 40 lbs (based on 6 weight settings and total weight) |
| Number of Plates | Six durable cast iron plates |
| Base Design | Round, flat bottom for upright storage and stability |
| Adjustment Mechanism | Lock and slide mechanism for quick weight changes |
As I unraveled the Yes4All Adjustable Kettlebell & Handle Set from its packaging, I was immediately impressed by its sturdy feel. The textured, non-slip handle caught my attention right away—perfect for sweaty workouts when grip can be a challenge.
Holding it in my hands, I noticed how comfortable the wide-grip handle is, making two-handed swings and lifts feel natural and secure. The cast iron plates are solid and seem built to last, with a sleek finish that doesn’t look like it’ll chip or rust quickly.
The flat, round bottom is a game-changer. It allows me to store it upright easily and even use it for exercises like renegade rows or pistol squats without wobbling.
Changing weights is incredibly smooth—just slide the plates in or out, lock, and go. It takes seconds to switch from 10 to 20 pounds, which keeps my workout flow uninterrupted.
What really stands out is how adaptable it is. With six adjustable weight settings, I can tailor my strength training as I progress, which makes it a smart investment.
Plus, the lock and slide mechanism feels secure, so I don’t have to worry about plates shifting mid-rep.
On the downside, the 40-pound limit might be restrictive for advanced lifters. Also, the handle’s width is comfy for most, but taller users might find it a tad narrow for some exercises.