10 Best Adjustable Kettlebells 2026 in the United States

The BowFlex SelectTech 840 Kettlebell stands out as a versatile option for home fitness enthusiasts, offering an adjustable weight range from 8 to 40 pounds. This wide range caters to various fitness levels and allows for a variety of exercises such as swings, rows, and squats. The adjustment mechanism is particularly user-friendly, allowing you to change weights with just a turn of a dial, making it easy to switch between exercises quickly.

One of the major benefits is its space-efficient design, which replaces up to six traditional kettlebells, making it a great choice for those with limited workout space. Its compact size (8.8”L x 7”W x 12.5”H) makes it easy to store when not in use. The handle design is comfortable, which can enhance the workout experience.

The inclusion of a 2-month free trial for the JRNY mobile membership is a nice incentive, especially for those looking for guided workouts, but it does require a subscription afterward, which might not appeal to everyone.

The Kettlebell Kings 12-32kg Adjustable Kettlebell Set offers a versatile weight range, letting you start at 12kg and work up to 32kg in mostly 1kg steps. This makes it a good choice for users keen on gradually increasing strength. Its adjustment mechanism uses seven weight plates secured by a center screw and allen wrench, which means changing weights is straightforward but may take a bit longer compared to dial or pin systems.

Made from durable alloy steel with solid iron weights, this set promises longevity and balanced resistance for consistent workouts. The 35mm handle diameter provides a firm grip, suitable for chalk use and allowing for secure handling during exercises. Its competition-style shape and size fit well in most home or gym spaces without being bulky. One downside is that some weight increments (13kg and 31kg) are skipped, which might slightly limit fine-tuning your load. Also, the adjustment process requires tools, so it's less instant than some other adjustable kettlebells.

The included workout guides help users maximize their training effectively. If you want a solid, durable kettlebell with a wide weight range and don’t mind using a tool to change weights, this set is a solid option for progressive strength training at home or the gym.

The REP Fitness kettlebell offers a solid choice for strength training, especially for users seeking a heavy, durable kettlebell. Although it is sometimes referred to as adjustable, the product is primarily a single 40 kg kettlebell rather than a fully adjustable device with multiple weight increments. REP does provide a broad range of kettlebell weights, but each is sold separately rather than as one kettlebell that adjusts across different weights.

Constructed from cast alloy steel with a premium textured matte finish, the kettlebell is resistant to rust and provides an improved grip, which enhances safety and comfort during swings and lifts. Its wide handle, approximately 1.38 inches in diameter, accommodates various hand sizes and allows smooth transitions between movements. The compact size makes it space-efficient for home gyms, and the color-coded base helps quickly identify the weight if owning multiple kettlebells.

This kettlebell is well suited for users looking for a high-quality, heavy kettlebell for home or commercial use. However, it may not meet the needs of those specifically looking for an adjustable kettlebell that allows easy weight changes within a single device. The durability and build quality make it a reliable option for both beginners and experienced lifters focused on building strength and power.