(Last Updated on October 18, 2025 by Henry)
- Name: SelectTech Adjustable Kettlebell
- Category: Free Weights
- Purpose: Support Grip Strength
- Rating: 4.7 out of 5 stars
- Availability: Amazon (Prime delivery)
- Adjustable: 8 to 40 lbs/3.62 to 18.14 kg
- Space Efficient: Excellent for Home Gym
- Modern Design: Ergonomic & Sturdy
- Quick Weight Dial: Combines 6 Sets of Weights
Not Sure, How to Maximize Support Grip?
Read My Support Grip Training Guide.
Overview:
The Bowflex SelectTech 840 adjustable kettlebell is ideal training equipment for a home gym and an excellent tool for developing grip strength. It’s modern, compact, and a great space saver with 6 weights in one device, making it perfect for grip and strength-focused training routines.
Built with an ergonomic handle that enhances grip control and comfort, it helps you avoid injuries while keeping a solid hold during dynamic movements like swings or cleans. The Bowflex kettlebell is cast in durable black molding to prevent corrosion and rusting, ensuring long-lasting performance for both your grip training and general conditioning sessions.
The highlight of the Bowflex kettlebell is a built-in dial that enables you to effortlessly switch between 6 different weight configurations. It’s a convenient space-saving solution for any home gym, and an especially practical tool for those working on support grip endurance. Having one adjustable kettlebell instead of six individual ones not only saves money but also keeps your grip workouts efficient and clutter-free.
The kettlebell adjusts from 8 pounds to 40 pounds, with weight settings including 8, 12, 20, 25, 35, and 40 pounds. These small weight increments make it easy to progressively overload your forearms and wrists over time, steadily improving both hand strength and grip endurance with each session.
In short, it’s a modern-looking, space-efficient, and durable adjustable kettlebell that’s perfect for anyone looking to build muscle while also improving grip performance.
Its smooth handle design, weight flexibility, and robust construction make it a reliable addition to any serious grip training or full-body workout setup.
What are the Pros & Cons of Bowflex SelectTech Adjustable Kettlebell?
Saves Bunch of Space
Pros:
- Rapidly Adjustable: Simply turn the dial to change the weight & quickly switch from one exercise to another
- Ideal for Home Gym: Space-efficient kettlebell that enables you to get access to 6 different weights in one single device. If saving up space is important for you, it’s a much better solution than having multiple individual devices cluttering the floor of your home gym.
- Cheaper Solution: 6 kettlebells in 1 save up a bunch of money. Buying weights individually will be more costly for you, both the expense of training devices themselves & their shipping cost. Adjustable kettlebells will be cheaper.
- Modern Looks: Coated with black molding to give it both a smooth and modern look & protect the device from corrosion & rusting.
- Ergonomic Handle: An Important feature that gives your grip more control over the training device, helps you to prevent injuries & gives you more comfort while you’re exercising.
- Free Training Videos: Great guide for beginners & advanced athletes alike. You can access 24-Trainer Led Videos from Bowflex.com/SelectTech to get new training ideas & a general overview of how to use your adjustable kettlebell.
- Small Weight Increments: Excellent for your training progression, you can adjust the SelectTech kettlebell in small weight increments to gradually build up your strength.
Cons:
- Do Not Drop: It’s better not to drop this kettlebell since it has a built-in weight-changing mechanism. It’s sturdy yet delicate. Beware, if you go crazy smashing this device against the floor, you might end up damaging the weight dial system.
- Sold in Single Units: Having 2 is better than one. You can indeed perform plenty of kettlebell exercises with one kettlebell. However, there are also plenty of exercises that require 2 kettlebells.
Still Deciding?
Compare it With Other Similar Equipment.
Bowflex SelectTech adjustable kettlebell – Ranking 94 out of 100
Excellent Equipment
Key Exercises You Can Perform with an Adjustable Kettlebell
Train All Major Muscle Groups
Leg Exercises:
- Wide squats
- Calf raises
- Stationary lunges
- Stiff-leg deadlift
- Reverse lunge
- Side lunge
Abdominal Exercises:
- Ab crunch
- Reverse crunch
- Lying trunk rotation
- Twisting side crunch
- Lying leg raise
Chest Exercises:
- Flat chest press
- Incline chest press
- Flat fly
- Incline fly
- Decline chest press
Back Exercises:
- Alternating rows
- Wide row
- Deadlift
Shoulder Exercises:
- Standing shoulder press
- Lateral raise
- Seated overhead press
- Front raise
- Rear delt row
- Shrugs
Arm Exercises:
- Standing curls
- Concentration curls
- Incline bench curls
- Scott curls
- Overhead triceps extension
- Triceps kickback
- Lying triceps extension
Technical Details
- Kettlebell adjusts from 8 to 40 lbs; adjusts in 4; 8; 5 & 10 pound increments up to 40 pounds
- Max Weight (Single): 40 pounds: Weight Range: 8 to 40 lbs (3.62 to 18.14 kg)
- Weight Increments in pounds: 8, 12, 20, 25, 35, 40 pounds
- Weight Settings: Combines 6 settings of weight per kettlebell into one
- Kettlebell Dimensions: 8.8 x 7 inches wide & 12.5 inches tall
- Shipping Weight: 43.7 pounds (one package)
- Manufacturer: Bowflex
Free Training Videos: Access 24 Trainer-Led Exercises
These are excellent for both beginners & advanced athletes. You get free access to 24 videos with different kettlebell exercises.
This Training Tool Targets Static Support Grip Muscles:
One of the 5 Primary Hand Movements.
- Half Get Up
- Sumo Deadlift
- Romanian Deadlift
- Reset Swing
- Level 1 Clean
- Goblet Squat
- Overhead Press
- Halos
- Suitcase Squat
- Bent Over Row
- Russian Twist
- Turkish Get Up (TGU)
- Windmill
- Swing
- Single Arm Swing
- Single High Pull
- Snatch
- Level 2 Clean
- Double Sumo Deadlift
- Double Suitcase Squat
- Goblet Lunge Rotation
- Single Leg Deadlift
- Alternating Press
- Gorilla Row
How Can You Target Your Grip Strength with a Kettlebell?
Control Shifting Load
Kettlebells are one of the best tools for building functional grip strength because every movement requires you to control a shifting load. Unlike dumbbells, the offset center of mass challenges your support grip, crushing grip, and even pinch grip as you stabilize the handle during swings, cleans, and carries.
Simple exercises like kettlebell swings, farmer’s carries, dead hangs, and bottom-up presses build powerful hands and forearms by forcing your stabilizers to stay engaged throughout the movement. The Bowflex SelectTech 840, with its adjustable weight range, allows you to gradually increase resistance and improve grip endurance while also working on overall strength and coordination.
If your goal is to improve your grip, kettlebell training offers a perfect bridge between traditional strength training and dedicated grip workouts. It trains your hands, wrists, and forearms in a dynamic way that mirrors real-life strength: strong, adaptable, and stable.
Final Verdict: Is the Bowflex SelectTech Kettlebell Worth It?
Ideal Addition for Home Gym
It’s easily one of the best kettlebells I’ve found. Due to its space efficiency, it’s a smart addition to any home gym. Having more free space means more room to move, something that matters when you’re working on dynamic, full-body, and grip-strength-building movements like swings or carries.
The highlight of the Bowflex adjustable kettlebell is its rapid adjustment dial. Without delay, it lets you quickly switch between different weight settings and move seamlessly from one exercise to another. This is ideal not just for strength progression but also for grip endurance training or supersets where you need fast transitions. With a simple turn of the dial, you can remove or add weight and keep your focus on performance instead of setup.
There are six total weight settings. The Bowflex kettlebell’s small weight increments make it easy to progressively overload your grip and forearms, helping you build up strength gradually without taking huge leaps in difficulty. That’s a big plus for athletes training for support grip strength, since control and consistency matter more than brute force.
Buying an adjustable kettlebell is also much cheaper than purchasing multiple fixed weights. You’ll save on both shipping costs and the devices themselves. Plus, it’s a major space saver; one adjustable kettlebell takes the place of six, which helps you keep your home gym uncluttered and efficient for functional and grip-focused workouts.
The only real downside is that Bowflex SelectTech adjustable kettlebells are sold as single units. Not the end of the world, but if your training program includes two-handed kettlebell exercises, it’s worth considering buying a second one. Ultimately, it depends on your routine and your goals, whether you’re chasing total body conditioning or grip strength specialization.
Bowflex kettlebells are sturdy and reliable. They’re coated with durable black molding to protect them from corrosion and rust while giving them a modern, professional look. Just use common sense: avoid dropping these on the floor, as the internal weight-changing mechanism is precise and you don’t want to risk damaging it.
All in all, it’s one of the coolest kettlebells on the market and a great tool for anyone serious about improving grip strength, functional strength, and total body conditioning.
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