BowFlex SelectTech 840 Adjustable Kettlebell: In-Depth Review Home Gym Guru, August 6, 2025August 7, 2025 The BowFlex SelectTech 840 Adjustable Kettlebell promises to revolutionize your home workout by combining multiple kettlebell weights into one space-saving design. This innovative piece of fitness equipment replaces the need for six individual kettlebells, giving users a dynamic range of weights at their fingertips. In this detailed review, we’ll examine the BowFlex SelectTech 840 from all angles—its features, real-world performance, customer experiences, and value proposition—to help you determine if it’s the right addition to your fitness arsenal. CHECK PRICE ON AMAZON Key Features and Specifications The BowFlex SelectTech 840 Adjustable Kettlebell combines intelligent design with practical functionality, offering users flexibility, efficiency, and reliability. Product Specifications FeatureDescriptionItem Weight40 pounds (maximum selectable)Weight Range8 lbs, 12 lbs, 20 lbs, 25 lbs, 35 lbs, 40 lbsWeight SelectionDial-based adjustment mechanismMaterialCompositeColorBlackDimensions8.8″ L x 7″ W x 12.5″ HSpace EfficiencyReplaces 6 separate kettlebellsMembership Offer2-month free JRNY mobile-only trialUsageSwings, rows, squats, twists, and more Adjustable Dial Mechanism One of the standout features is the intuitive dial system, which lets you adjust the weight seamlessly. You can go from 8 to 40 pounds in seconds, making it ideal for circuit training or supersets. This quick-shift ability is especially useful when switching between exercises that require varying loads—like a kettlebell swing followed by a single-arm row. Material & Build The composite construction offers a sturdy and stable feel while remaining lighter than cast iron versions. It’s built to withstand repeated use without compromising safety or function. Space-Saving Design Thanks to its compact form, the SelectTech 840 is ideal for apartment dwellers, minimalists, or anyone seeking to maximize workout potential without dedicating an entire room to fitness equipment. CHECK PRICE ON AMAZON Performance Versatility in Exercise Routines The BowFlex 840’s weight range covers most fundamental kettlebell movements. Whether you’re doing goblet squats, Russian twists, snatches, or Turkish get-ups, this kettlebell accommodates a broad array of exercises. Smooth Transitions One of the most notable aspects of performance is the transition time between weights. With traditional kettlebells, changing weights means pausing your workout. Here, the turn of a dial eliminates that interruption, allowing you to maintain your heart rate and focus. Grip & Ergonomics The handle is wide enough to allow for double-handed exercises but still manageable for single-handed lifts. The grip texture is designed to minimize slipping without the need for chalk or gloves. However, it’s worth noting that users with larger hands might find the handle a bit narrow during two-handed swings. Weight Distribution Unlike conventional kettlebells that have a naturally balanced center of gravity, the SelectTech 840’s adjustable weight system slightly alters the center of mass depending on the selected weight. For most exercises, this is negligible, but advanced lifters may notice a different “feel” in the swing or snatch phases. Noise & Movement The plates are relatively quiet, though some minor rattling can occur during dynamic exercises like cleans or swings. This doesn’t appear to compromise safety, but it’s something to be aware of for those who prefer totally silent gear. CHECK PRICE ON AMAZON Customer Feedback To gain a fuller understanding of how this product performs in real-world settings, we examined numerous user reviews and summarized the most common themes. Feedback CategorySummaryEase of UseHighly praised; quick weight changes appreciatedSpace EfficiencyFrequently noted as ideal for home gyms with limited spaceBuild QualityDescribed as solid, durable, and long-lastingWeight OptionsMixed reactions—some love the range, others feel the jumps are too wideValue for MoneyConsidered a worthwhile investment for serious home workout enthusiasts CHECK PRICE ON AMAZON Pros and Cons To provide a balanced perspective, here is a summary of the major advantages and drawbacks of the BowFlex SelectTech 840: ProsConsCombines 6 kettlebells into oneNot ideal for competitive kettlebell athletes or puristsEasy and fast weight adjustmentWeight increments may feel large for beginnersSaves considerable spaceSlightly unbalanced weight distribution at lower settingsSturdy and durable buildSuitable for a wide range of exercisesGreat for circuit training and quick-paced workoutsIncludes a 2-month free JRNY mobile membership with guided workouts Final Verdict The BowFlex SelectTech 840 Adjustable Kettlebell is a well-executed and thoughtfully designed fitness tool that caters directly to the modern home gym user. Its space-saving, easy-to-use, and versatile features make it a standout among adjustable kettlebells. While not perfectly suited for purists or those doing advanced kettlebell sport training, it offers exceptional value to the vast majority of users, from beginners to intermediate fitness enthusiasts. Check out our home gym gear reviews below. Best Olympic Barbell for Home Gym Best Dumbbell Set for Home Gym Best Smith Machine for Home Gym Best Power Rack for Home Gym Best Home Gym Mirror Best Infrared Sauna for Home Best Stair Stepper Machine for Home Best Folding Treadmill with Incline Home Gym Gear Reviews gymhomekettlebell