Bowflex SelectTech 840 Adjustable Kettlebell Review

The Bowflex SelectTech 840 Kettlebell is an adjustable kettlebell that goes from 8 pounds to 40 pounds by turning a quick dial. After using the kettlebell for different exercises like swings, Turkish gymnastics, goblet squats, jerks, lunges, and farmer’s carry, I must say it’s a pretty solid design.

The 840 uses a lot of plastic so it’s not great for hard use, but if you’re looking for a compact kettlebell with low max weight, I’d recommend it. In this Bowflex SelectTech 840 Adjustable Kettlebell review, I’ll let you know all the details regarding the build, value, and ease of adjustability.

Bowflex SelectTech 840 Adjustable Kettlebell

Bowflex SelectTech 840

4.8 out of 5 stars (3,378)

Rating: 4.5 out of 5.

By feature

  • Versatility- 4.64
  • Value for money- 4.64
  • For beginners- 4.64
  • Ergonomic- 4.54
  • Maneuverability- 4.54
  • Easy to hold- 4.44

Price: $149.00

A Quick Look at the Bowflex SelectTech 840 Adjustable Kettlebell


The Bowflex 840 Adjustable Kettlebell has some similarities with Bowflex’s range of adjustable dumbbells (Bowflex SelectTech 552s and 1090s) and turns functionality into a kettlebell. Both my wife and I have used the 840 in our garage gym, and although I prefer fixed bells, the adjustable component and price point are hard to beat.

Coop’s Tips:

  • Keep in mind that this adjustable kettlebell is not designed to take a beating, so be sure to set it down carefully rather than dropping/bumping it.
  • If you want to take advantage of the two-year warranty at any point, be sure to register your adjustable kettlebell online as soon as you receive it.

My favorite things:

  • Looks like a traditional kettlebell
  • Compact and replaces multiple kettlebells
  • Easy to change weight increments
  • It is versatile and can be used for a variety of exercises

My explanations:

  • Max out at just 40 pounds
  • The thin handle does not pick up chalk well
  • The plastic base doesn’t feel very sturdy
Bowflex SelectTech 840 Adjustable Kettlebell Review

Is Bowflex SelectTech 840 Adjustable Kettlebell Worth It?


Yes, it’s a good addition to your home gym if you’re on a budget and don’t want anything heavier than that. It saves space, so it can be neatly lifted when not in use and you don’t have five kettles of different weights on the floor.

Understand, however, that this is one of the best budget home gym equipment pieces, but one reason is that there isn’t a lot of competition in this space. It is not designed for commercial use or very hard weight training. If you do CrossFit or plan to use it a lot, I recommend looking at fixed options like Rogue Kettlebells or Kettlebell Kings.

Pros
  • People with limited space and needing compact exercise equipment
  • Those with a budget
  • People who do not want to use more than 40 kilos
Cons
  • Really heavy lifters
  • Those who want a super durable kettlebell that will last a lifetime
  • For individuals who want to gradually increase the weight they use; this kettlebell is bouncing around

Weight Options


The Bowflex 840 Adjustable Kettlebell can be adjusted to 3.5 kilograms/8 pounds, 5.5/12, 9/20, 11/25, 16/35, or 18/40, which is more than enough for a wide variety of exercises. This makes it a good option for beginners who don’t want to lift a lot of weights, and for those who want to do more fitness-based training.

While 18 kilograms/40 pounds is fine for some people, there are many who want a heavier option. I would love to see the max weight reach 53 pounds. However, you know the maximum weight that goes into it, so only buy the 840 if it’s heavy enough for the moves you want to use.

I would also like to have more weight gain options between the minimum and maximum weight because it allows you to progress better over time.

Structure and Durability


The Bowflex 840 has a hard plastic outer shell that makes it feel strong and premium, but rather bulky. Essentially, the Bowflex 840 Adjustable Kettlebell is a stack of weight plates enclosed in a plastic ball, with a handle and a mechanical dial at the top.

Due to its weight being adjustable, the kettlebell has an open bottom, which means the plates are exposed at the base. This can make it difficult to concentrate while exercising, causing some people to feel uncomfortable and worry about the weight flying away.

Between exercises, you should keep your Bowflex 840 Adjustable Kettlebell on the plastic tray that comes with it. This is also a great place to put weight plates when not in use, but as we’ll discuss in a moment, not all plastic guarantees me durability.

One thing companies often don’t get right with adjustable gear is how the handle feels. The arm of the 840 Kettlebell is quite thin compared to the traditional kettlebells we’ve reviewed (like the Rogue Kettlebells).

While the handle on Bowflex’s kettlebell is thin, it’s thankfully both metal and round, making it easy to transition from a lower-hand to an upper-hand position. It’s not our favorite design, but it feels solid and is better than plastic.

Also rounded, the shell is comfortable in the front rack position during presses and hides the weight plates inside. But thanks to the dial it’s easy to see which weights are currently selected. It’s plastic on the outside but it’s pretty thick and tough, so I’m not too worried about that part of the bell.

Customer experience


The Bowflex 840 has a two-year parts warranty, but it’s worth noting that you must register your kettlebell online at www.bowflex.com/register. If you wish to take advantage of your warranty at any point, you will need to provide information such as the date of purchase and the serial number of the product.

Bowflex has very good customer service. If you have a question, you can easily contact the company through the live chat button or by calling 800-605-3369. I found them very responsive and easy to work with.

The Final Verdict of Our Bowflex SelectTech 840 Adjustable Kettlebell Review


Overall, the Bowflex SelectTech 840 Adjustable Kettlebell is a solid space-saving option for those who don’t need it or don’t want to use more than 40 pounds. Adjustability is nice, as it’s easy to quickly change weight settings. I would recommend this to anyone who has a budget or little space but still wants to do strength training.

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1 thought on “Bowflex SelectTech 840 Adjustable Kettlebell Review”

  1. It’s a great piece of equipment. Definitely space saving and versatile. The styling can be a bit awkward for some balance exercises. Also, the handle is slippery. I highly recommend purchasing a tennis racket grip tape to wrap the handle. Provides an amazingly inexpensive, strong and durable grip.

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