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BowFlex SelectTech 840 Adjustable Kettlebell

  • Based on 7,531 reviews
Condition: New
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$149.00 Why this price?
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Availability: In Stock.
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Arrives Dec 21 – Dec 22
Order within 11 hours and 34 minutes
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Features

  • TURN OF A DIAL: With the turn of a dial, you can easily adjust from 8 to 40 lbs., rapidly switch from one exercise to the next, and perform a wide variety of full-body exercises.
  • SPACE EFFICIENT: Replaces up to 6 kettlebell with weights at 8, 12, 20, 25, 35, and 40 lbs.
  • 2-MONTH FREE TRIAL: Try our JRNY All-Access Membership for 2 months, free.
  • JRNY MOBILE-ONLY MEMBERSHIP: Workout at home or on the go with inspiring trainers, and just-for-you adaptive workouts, from your phone or tablet.
  • WIDE WEIGHT RANGE: Offers a variety of workouts, including swings, rows, squats, twists and more.
  • SPACE-SAVING DESIGN: Ensures a quality workout from nearly any room in your home.

Description

Swing into action with the Bowflex SelectTech 840 Kettlebell, the adjustable kettlebell that provides 6 different weights in one compact design! Save space by selecting the weight you want with the turn of a dial, allowing you to achieve total-body results from the comfort of home. Our JRNY Mobile-Only Membership with Motion Tracking is ideal for strength training at home or on the go; try it free for 2 months from your phone or tablet. With the 840 Kettlebell, you'll combine cardio and strength in one quick, effective workout, helping you build muscle, burn fat, and boost confidence. JRNY subscription required. This offer’s availability is subject to change without notice. At end of free trial, JRNY membership automatically renews at membership rates until canceled.

Item Weight: 40 Pounds


Brand: Bowflex


Color: Black


Material: Composite


Product Dimensions: 8.8"L x 7"W x 12.5"H


Item Weight: ‎40 Pounds


Brand: ‎Bowflex


Color: ‎Black


Material: ‎Composite


Product Dimensions: ‎8.8"L x 7"W x 12.5"H


Special Feature: ‎Adjustable, Ergonomic


Handle Diameter: ‎28 mm


Recommended Uses For Product: ‎Indoor


Global Trade Identification Number: ‎61


Manufacturer: ‎Johnson Health Tech Trading


UPC: ‎708447912961


Item Package Dimensions L x W x H: ‎15.88 x 13.1 x 11.6 inches


Package Weight: ‎19.84 Kilograms


Item Dimensions LxWxH: ‎8.8 x 7 x 12.5 inches


Brand Name: ‎Bowflex


Warranty Description: ‎2 years


Model Name: ‎Bowflex Selectorize Kettlebell


Suggested Users: ‎unisex-adult


Number of Items: ‎1


Part Number: ‎100790


Model Year: ‎2019


Style: ‎Bowflex Kettlebell 8-40lbs


Included Components: ‎Kettlebell


Size: ‎40.0 Pounds


Sport Type: ‎Health & Fitness


Handle Material: ‎Rubber


Date First Available: August 28, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 21 – Dec 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Compact, sturdy, and super convenient
This adjustable kettlebell has been one of the best things I've added to my home gym. The weight changes happen quickly and smoothly, and each setting feels stable with no wobbling or moving. The handle is easy to hold and has enough room for exercises that can be done with one or two hands. It takes up a lot less space than having a lot of kettlebells, but it still feels just as strong when you swing, row, squat, or press. This is a great piece of equipment for anyone who wants to be able to do a lot of different things without having to buy a lot of equipment. ... show more
Reviewed in the United States on November 19, 2025 by Adam

  • Excellent Kettlebell
This has come in handy especially for quick workouts when I want to take a weight around and keep active when I can’t be in the gym. I have the adjustable dumbbells and this has the same high quality I expected and it’s super helpful that it has multiple weights so the smaller members of the family can use it too. ... show more
Reviewed in the United States on November 27, 2025 by Pierre

  • Convenience
Excellent product and saves a lot of space. I just bought my second one.
Reviewed in the United States on November 9, 2025 by Larry

  • Versatile and Space-Saving – Perfect for Home Workouts!
The media could not be loaded. 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. ... show more
Reviewed in the United States on April 18, 2025 by Marisa Marisa

  • Solid adjustable kettlebell for home gym
I made a home gym and needed something space saving and versatile, so the BowFlex SelectTech 840 adjustable kettlebell was a perfect solution. Key Features: * Ease of installation: (5/5) - ready to use out of box * Ease of use: (5/5) - turn of the knob will change the weight; it’s also well labeled * Durability: (5/5) - no problems so far and it’s been 1.5 years * Value: (5/5) - considering you’re getting a large range of weights I think it justifies the price. Room for improvements: I think it’d be nice to have a little bit larger handle. I’m talking like another 1/2 to 1 inch to improve its versatility and use. If you are a minimalist and need to save space, this is an outstanding option for your gym. ... show more
Reviewed in the United States on December 8, 2025 by NedP

  • 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. ... show more
Reviewed in the United States on July 5, 2025 by Makenna

  • It’s good
Works great and easy to use!
Reviewed in the United States on December 3, 2025 by SP

  • Great equipment
The kettlebell is amazing! Love the convenience of the adjustable weight system.
Reviewed in the United States on October 7, 2025 by Shelly Taylor

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