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BowFlex SelectTech 840 Adjustable Kettlebell Review

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9.7
Expert ScoreRead review

$149.00

Price: $149.00
(as of Aug 21, 2025 08:06:13 UTC – Details)

Description

The Bowflex SelectTech 840 is the ultimate space-saving solution for your home gym, consolidating six kettlebells into one sleek, compact unit. With a simple turn of a dial, you can seamlessly adjust your weight from 8 to 40 lbs, allowing for dynamic, full-body workouts that combine cardio and strength. Perfect for swings, rows, and squats, this kettlebell is praised for its solid build quality and effectiveness. Paired with a complimentary 2-month trial of the JRNY app, you get access to trainer-led workouts, making it an excellent investment for achieving your fitness goals at home.

Product Details

  • Product Name: BowFlex SelectTech 840 Adjustable Kettlebell
  • Adjustment Mechanism: Single dial for weight selection
  • Weight Settings: 6 increments (8, 12, 20, 25, 35, and 40 lbs)
  • Included Software: 2-month free trial of JRNY Mobile-Only Membership
  • Recommended Use: Full-body workouts, including swings, rows, squats, and twists

Advantages

  • Space Efficiency: Replaces a full rack of six kettlebells, making it ideal for apartments, small rooms, and home gyms where space is limited.
  • Quick Adjustability: The turn-of-a-dial system allows for rapid weight changes between exercises, minimizing downtime and keeping your workout flowing.
  • Workout Versatility: The wide weight range supports a variety of exercises for both strength training and cardio, providing an effective total-body workout.
  • Guided Fitness: The included JRNY app trial offers access to inspiring trainers and adaptive workouts, helping you maximize results and stay motivated.

Our Recommendations

This adjustable kettlebell is highly recommended for home fitness enthusiasts who value efficiency and have limited storage space. It is perfect for individuals looking to perform a wide range of exercises with a single piece of equipment. If you enjoy structured, app-based workouts and want to combine strength and cardio, the SelectTech 840 is an outstanding choice.

Conclusion

The Bowflex SelectTech 840 Adjustable Kettlebell is a well-built, highly effective tool for anyone serious about home fitness. Its brilliant space-saving design and easy adjustability make it a standout product. While the subscription model for the JRNY app and the large jumps between weight settings may be drawbacks for some, its overall quality, versatility, and convenience make it a great addition to any workout routine.

9.7Expert Score
BowFlex SelectTech 840 Adjustable Kettlebell
PROS
9.7
CONS
1.3
PROS
  • Excellent Space-Saver: Its compact design replaces six separate kettlebells.
  • Easy to Adjust: The dial mechanism makes switching weights quick and effortless.
  • Solid Build Quality: Customers report that it feels sturdy and is built to last for years.
  • Effective for Workouts: Provides a versatile range of exercises for total-body fitness.
  • Great for Home Use: Easy to store and perfect for getting a quality workout in any room.
CONS
  • Subscription Required for App Features: The full JRNY experience requires a paid membership after the 2-month trial.
  • Fixed Weight Increments: The jumps between weights (e.g., 12 to 20 lbs) may be too large for some users.
  • Weight Range Can Be Heavy: Some customers found the weight options to be heavy, potentially making it less suitable for absolute beginners.

13 reviews for BowFlex SelectTech 840 Adjustable Kettlebell Review

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  1. Makenna

    Space-Saving and Versatile
    I’ve been using this adjustable kettlebell at home and it’s been a practical solution for strength training without taking up too much space. The dial mechanism on top makes it easy to switch between different weight settings, and it locks in securely. I can move from one exercise to the next without needing a full set of kettlebells around me.The grip is comfortable and solid. It’s shaped more like a traditional kettlebell than I expected, which helps with swings, presses, and squats. The weight distribution feels even, and it doesn’t shift during movement. That was something I was concerned about with adjustable equipment, but it hasn’t been an issue here.It’s also easy to store. I keep it in the corner when not in use and it doesn’t clutter the room. This has worked well for full-body workouts at home, and it’s nice having multiple weights in one piece. Overall, it’s been a solid addition to my routine and a good fit for small spaces or anyone wanting to keep their setup simple.

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  2. Marisa

    Versatile and Space-Saving – Perfect for Home Workouts!
    The Bowflex SelectTech kettlebell is a game changer for my home gym. It’s super easy to adjust the weight with just a quick turn of the dial, and it replaces multiple kettlebells in one compact design. The build feels solid and durable, and the grip is comfortable for all kinds of exercises—swings, squats, presses, and more.It’s a great option if you’re short on space but still want a variety of weight options. Definitely worth the investment for anyone looking to level up their home workouts without cluttering the room.

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  3. Carlos

    Great investment
    I had this kettlebell on my wishlist for almost a full year, always thinking whether I should buy it at full price. I was finally able to get a 20 or 30% discount and decided to purchase it. My only regret is that I did not buy it sooner. It provides so much versatility when working out, and I love the fact that it has adjustable weights. I have zero issues with durability/stability when doing full swings, and it’s compact enough to store in tight spaces. I highly recommend it.

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  4. Kaylee B.

    Versatile Kettlebell
    Honestly impressed with this KB. Just started working out again and this will get your heart rate going more than you can imagine. I change weights throughout my workout to fit what I am doing. It literally takes 2 seconds to change the weight to what you need. 10 out of 10 would buy again.I would leave it 4 stars for this one complaint – you have to have the KB sitting on the base to change the weight of it. Other than that its perfect, so I went ahead and gave it the 5 stars it deserves.

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  5. R. Rodriguez

    Great for beginners.
    Like many folks, I bought a bunch of home gym equipment during the pandemic, and this Bowflex Kettlebell was part of that. I’ve enjoyed using it, but once I bought actual kettlebells, I started to see the limitations of this product.Cons:- For one, it’s housed in plastic. It’s sturdy enough, but still there’s always a chance putting it down too hard might break it.- The handle is my biggest gripe. It’s skinny and smooth, so it doesn’t provide the best grip.- Differences in weight are a bit weird: 8, 12, 20, 25, 35, 40. I absolutely noticed when I went from 25 to 35. It’s a big jump. I bought a 31 pound (14kg) kettlebell just to fill that gap. Coincidentally, that was when I really saw the differences between this and real kettlebells.- Once you start working with real kettlebells, it’s hard to go back to this one.All that being said, I’m still happy with my purchase. It’s a great starter kettlebell for sure, and I definitely got a solid two years worth out of it. I’d recommend it mostly for swings and rows, which is what I still occasionally use it for.

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  6. Rich Hicks

    Best excercise product I’ve ever purchased
    Definitely the best thing I’ve ever purchased for exercise. The convenience of this kettle bell has really got me working out and enjoying it. I bought this during COVID quarantine and it has been a perfect purchase. The small package is great. It has a range from 8 to 40 lbs in a small kettlebell form that doesnt take up much space. The unit comes with a base where you set the weight before you make an adjustment. Just the click of the dial and you are set with a different weight. The convenience of switching weights is what has me doing more and more variety of exercises. If I had any negatives for the product, it jumps from 25 to 35 to 40 in the available selections. I would have loved a 30lb setting built in, but it has quite a range in a very compact package, so I think they did a great job designing it. The durability is great. It does say that you cant drop it or throw it down, but that isnt really a problem to me. Overall, I am extremely happy with this product and I am already seeing muscle gains from using the product. I think the price is very reasonable for the weight range and convenience it provides. If I would have bought dumbells with plates, I wouldnt do nearly the mix of exercises, because I’d get tired of putting plates on and taking them off during a workout. With the Bowflex, I’m setting the weight down on the base, turning a dial a click or two and lifting it right back up. Love it! HIGHLY RECOMMENDED!

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  7. Luis Morales

    Great Product
    Great Product

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  8. TheOne

    Fun, Durable, and Easy to Use. I want another one.
    I love this kettlebell and want to buy another one. Its held up well after a few years. Easy to switch weight and a very fun workout tool.

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  9. DK

    Amazing product

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  10. Stephen C

    Durable, works perfectly and love the space saving. A quality product

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  11. Cliente de Kindle

    Este producto me ha ayudado a enriquecer mi rutina, esta bien hecho y de buena calidad, el manual es bastante claro y tan sólo hay que seguir las recomendaciones. En el futuro desearía que el fabricante saque versiones con mayores pesos y con diseño más robusto.

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  12. Ong LW

    Wish its max weight were 50 or 60lbs

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  13. Koray

    Paketleme de kalite de beklenildiÄŸi gibi.

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