10 Best The Adjustable Dumbbells 2025 in the United States

The FEIERDUN Adjustable Dumbbells offer a versatile workout solution with a 5-in-1 multifunctional design that includes dumbbells, barbells, kettlebells, weight plates, and push-up stands. This versatility allows for a wide range of exercises, making it suitable for both beginners and more advanced fitness enthusiasts. The weight range is quite comprehensive, from 8 lbs to 45 lbs for dumbbells and up to 91 lbs for the barbell, which accommodates different fitness levels and exercise intensities.

The adjustment mechanism is user-friendly, with detachable weight pieces and safety nuts to ensure the weights stay securely in place during workouts, enhancing safety and convenience. The build quality is designed with durability in mind; the materials used include high-quality PE for the exterior and a blend of iron, mud, and sand inside, ensuring the equipment is both robust and floor-friendly. Additionally, the non-slip ABS dumbbell bar and thickened foam on the barbell connector offer a comfortable and secure grip.

However, the size and storage might be more cumbersome compared to other compact adjustable dumbbells, as it requires more space. The use of plastic in the build, despite being durable, might not appeal to users who prefer a more premium feel typically associated with metal weights. Those looking for an all-in-one adjustable weight solution for a home gym may find the FEIERDUN dumbbells a valuable addition, especially given its multifunctional use and broad weight range.

The BowFlex SelectTech 552 Adjustable Dumbbells offer a versatile weight range from 5 to 52.5 pounds, making them suitable for various exercises from heavy lifts like lunges to lighter activities such as curls. The weight adjustment mechanism is user-friendly, involving a simple turn of a dial to select the desired weight, which simplifies switching weights during workouts, eliminating the need for multiple dumbbells. This feature significantly enhances their space efficiency, as it replaces up to 15 sets of individual dumbbells, which is ideal for those with limited workout space.

In terms of build quality, these dumbbells are made from alloy steel with an ergonomic thermoplastic rubber grip, contributing to their durability and comfort during use. The compact design (16.9 x 8.3 x 8.3 inches) ensures they don't take up much room, and they are easy to store. However, the dumbbells weigh a substantial 105 pounds as a pair, which might be cumbersome for some users when setting up or moving them. Additionally, while the dial mechanism is convenient, it may wear out over time with frequent use.

The two-month free trial of the JRNY All-Access Membership offers added value with access to various strength-training and bodyweight workouts, which could be beneficial for users seeking guided exercise routines. These adjustable dumbbells are well-suited for individuals looking for a versatile, space-efficient solution for home workouts, but potential buyers should consider the weight and long-term durability of the adjustment mechanism.