The Bowflex SelectTech 10.5 Adjustable Dumbbells offer a solid value proposition in the adjustable dumbbell market, according to reviewers. They provide progressive overload with 2.5-pound increments up to 25 pounds, then switch to 5-pound increments, which is praised for allowing fine-tuned progression. The design reflects engineering from the Nautilus lineage, though some reviewers note Bowflex equipment generally has reliability issues. These dumbbells adjust from 5 to 52.5 pounds and are suitable for home gym users seeking versatile, space-saving strength training equipment.
Full review
Weight range and adjustment system
The Bowflex SelectTech 10.5 Adjustable Dumbbells offer a weight range from 5 to 52.5 pounds with 2.5-pound increments up to 25 pounds and 5-pound increments from 25 to 50 pounds. Users can quickly change weights by turning dials at both ends of each dumbbell, which are clearly labeled. The weight increments are particularly beneficial for exercises requiring lower starting weights, such as arm curls and lateral raises, where precise adjustments are crucial for proper form and progression.
The adjustment mechanism operates through a dial system that requires turning both dials simultaneously to change weights. This dual-dial operation can be awkward and requires practice to master, as users must remember to adjust both sides. The dials turn in opposite directions, which can cause confusion during quick transitions between exercises. Despite the learning curve, the system provides rapid weight changes compared to traditional plate-loaded dumbbells, making it ideal for high-intensity workouts and supersets. The offset weight selection feature allows for more precise weight distribution, which can be particularly useful for exercises like lateral raises and reverse curls where balance is important. However, the system's complexity means that beginners may need time to become comfortable with the adjustment process.
Users report that the weight selection system is intuitive once mastered, but the initial learning phase can be frustrating. The dials are clearly labeled and provide tactile feedback when properly locked, reducing the risk of accidental weight changes during workouts. The system's ability to provide a wide range of weights in a compact space makes it an attractive option for home gym users with limited storage space. The offset weight selection feature, while adding complexity, provides additional flexibility for users who want to fine-tune their workout intensity. The weight increments are well-designed to accommodate various fitness levels, from beginners requiring lighter weights to experienced lifters needing heavier loads.
Size and exercise limitations
This extended length creates challenges during certain exercises, particularly those requiring a full range of motion or precise positioning. Users report that the length becomes problematic during exercises like lateral raises, reverse flyes, and some shoulder movements where the extended dumbbell creates awkward positioning. The bulkiness of the dumbbells is particularly noticeable at lower weight settings, where the full length still applies even though the weight is minimal. This design characteristic makes some exercises feel awkward or uncomfortable, especially for users with smaller frames or those performing exercises that require precise hand positioning.
The extended length affects the dumbbells' usability in several ways. During exercises like bench presses or overhead movements, the length can interfere with proper form and create awkward positioning. Users note that the dumbbells are particularly challenging for exercises requiring a narrow grip or precise hand placement. The length also impacts storage, as the dumbbells require more space in racks or stands, and the extended profile makes them less suitable for users with limited space. Some users find that they must retreat to traditional fixed dumbbells for certain exercises that are difficult to perform with the SelectTech 10.5 due to the length constraints. The design compromise between space efficiency and exercise versatility becomes apparent when considering the full range of movements that require the full length of the dumbbell.
Exercise-specific limitations are a recurring theme among users. The extended length creates challenges for exercises requiring a full range of motion, particularly those involving the shoulders and arms. Users report that the dumbbells work well for compound movements like rows and squats but struggle with isolation exercises that require precise positioning. The length also affects the dumbbells' performance in exercises requiring a narrow grip or specific hand positioning. Some users find that they must use traditional dumbbells for exercises like lateral raises or reverse flyes, which are particularly affected by the extended length. The design trade-off between space efficiency and exercise versatility becomes evident when considering the full range of movements that require the full length of the dumbbell.
Durability and wear concerns
The construction of the Bowflex SelectTech 10.5 Adjustable Dumbbells includes plastic molding over metal plates, which reduces noise during use but raises durability concerns. Users report that the plastic components begin to show signs of wear after extended use, particularly at the points where the plates connect to the handles. The plastic covering on the metal plates can dent or chip, especially when the dumbbells are repeatedly racked and unracked during workouts. Some users note that the plates show visible wear after several months of regular use, particularly at the contact points where the plates meet the handles. The plastic components may also become discolored or develop scratches over time, affecting the dumbbells' appearance and potentially compromising the structural integrity of the plates.
The weight plates themselves are made of metal but are covered with plastic to reduce sound, which creates a compromise between noise reduction and durability. Users report that the plates can shift slightly during use, creating a rattle that is noticeable during certain exercises. This lateral movement is not a safety concern but can be distracting during workouts. The plastic coating on the plates shows signs of wear after regular use, with some users reporting that the coating begins to peel or chip after several months of consistent use. The dials themselves are made of plastic and can become loose or damaged with repeated use, particularly when users are adjusting weights quickly during high-intensity workouts. The plastic components may also become brittle over time, especially with frequent exposure to sweat and varying temperatures.
Durability concerns are particularly pronounced for users who rack and unrack the dumbbells frequently, as the repeated handling can cause wear on the plastic components. Users report that the plates begin to dent or chip after extended use, especially when heavy weights are repeatedly placed back into the rack. The plastic coating on the plates can develop scratches or discoloration, affecting both the appearance and potentially the structural integrity of the dumbbells. Some users note that the dials become loose or difficult to adjust after months of regular use, requiring careful handling to maintain proper function. The plastic components may also become discolored or develop cracks over time, particularly with frequent exposure to sweat and varying temperatures. These wear patterns suggest that the dumbbells may require more careful handling than traditional fixed dumbbells.
Storage and space efficiency
This space efficiency is one of the primary advantages of the adjustable system, allowing users to replace 15 sets of fixed dumbbells with just two adjustable dumbbells. The storage trays included with the dumbbells help maintain organization and prevent the dumbbells from rolling around during storage. Users report that the storage system works well for keeping the dumbbells organized and preventing damage to the plastic components. The compact design allows for easy storage in small spaces, making it ideal for home gyms with limited floor space. However, the extended length of the dumbbells means they require more storage space than traditional dumbbells, even when properly racked.
The storage system includes trays that allow the dumbbells to slot into place when not in use, keeping the workout space tidy and organized. Users note that the trays work well for maintaining organization but can be bulky themselves, requiring additional space in storage areas. The dumbbells' extended length means that even when stored, they take up more space than traditional dumbbells, particularly in areas with limited clearance. Users report that the storage trays are effective for preventing damage to the plastic components but may not be suitable for all storage environments. The system's space-saving benefits are most pronounced when compared to traditional dumbbell sets, where users would need to store multiple pairs of dumbbells in racks or on shelves.
Storage efficiency is a key selling point for the Bowflex SelectTech 10.5 Adjustable Dumbbells, particularly for users with limited space. The system allows users to replace an entire set of fixed dumbbells with just two adjustable dumbbells, significantly reducing the storage footprint. Users report that the storage trays help maintain organization and prevent damage to the plastic components. However, the extended length of the dumbbells means they require more space in storage areas than traditional dumbbells, even when properly racked. The storage system works well for maintaining organization but may not be suitable for all storage environments, particularly those with limited clearance. The space savings are most significant when compared to traditional dumbbell sets, where users would need to store multiple pairs of dumbbells in racks or on shelves.
Performance and exercise versatility
The Bowflex SelectTech 10.5 Adjustable Dumbbells perform well across a wide range of exercises, from basic movements like arm curls to more complex compound exercises such as rows and squats. Users report that the dumbbells provide consistent performance throughout their weight range, with no noticeable rattling or shifting of the plates during lifts. The weight plates feel securely attached during all exercises, from bench presses to overhead movements, providing confidence during workouts. The system's ability to quickly change weights allows for efficient transitions between exercises, which is particularly beneficial for high-intensity workouts and supersets. Users note that the dumbbells work well for both strength training and metabolic conditioning, making them versatile for various fitness goals.
The performance of the dumbbells is generally positive, with users reporting that they handle well during most exercises. The weight plates remain stable during lifts, providing confidence and consistency during workouts. The quick adjustment system allows for rapid transitions between exercises, which is particularly beneficial for high-intensity workouts and supersets. Users report that the dumbbells perform well for compound movements like rows and squats, where the full weight capacity is utilized. The system's ability to provide a wide range of weights in a compact space makes it ideal for users who want to maximize their workout variety without sacrificing space.
Exercise versatility is one of the strongest points of the Bowflex SelectTech 10.5 Adjustable Dumbbells. Users report that the dumbbells work well for a wide range of exercises, from basic movements to complex compound lifts. Users note that the dumbbells perform well for both strength training and metabolic conditioning, making them versatile for various fitness goals. The dumbbells' performance across different exercise types makes them a valuable addition to any home gym.
User experience and learning curve
The Bowflex SelectTech 10.5 Adjustable Dumbbells require a learning period to master the adjustment system, with users reporting that it takes several weeks to become comfortable with the dual-dial operation. The system's complexity means that beginners may experience frustration during the initial adjustment phase, particularly when trying to quickly change weights between exercises. Users note that the dials turn in opposite directions, which can cause confusion and requires practice to overcome. The learning curve is particularly steep for users who are accustomed to traditional dumbbells or plate-loaded systems, where weight changes are more straightforward. However, once users become familiar with the system, they report that the quick adjustments make workouts more efficient and enjoyable.
The adjustment process requires turning both dials simultaneously, which can be awkward for users who are not accustomed to the system. Users report that the dual-dial operation becomes intuitive after several weeks of use, but the initial learning phase can be challenging. The dials' opposite rotation directions create confusion, particularly during high-intensity workouts where quick adjustments are necessary. Some users note that they must consciously remember to adjust both dials, as the system does not provide visual feedback when one dial is not properly adjusted. The learning curve is manageable but requires patience and practice, particularly for users who are new to adjustable dumbbells. The system's complexity means that users may need time to become comfortable with the adjustment process, but the benefits of quick weight changes outweigh the initial difficulty.
User experience improves significantly once the adjustment system is mastered, with users reporting that the quick weight changes make workouts more efficient and enjoyable. The system's ability to quickly change weights allows for rapid transitions between exercises, which is particularly beneficial for high-intensity workouts and supersets. Users note that the learning curve is manageable and that the benefits of quick adjustments outweigh the initial difficulty. The system's complexity means that users may need time to become comfortable with the adjustment process, but the efficiency gains make it worthwhile. Some users report that they prefer the SelectTech 10.5 over traditional dumbbells or plate-loaded systems due to the time savings during workouts. The adjustment system's learning curve is a minor inconvenience compared to the time and space savings it provides.
Strengths
- +Offers progressive overload with 2.5-pound increments up to 25 pounds
- +Well-thought-out design with engineering from Nautilus lineage
- +Price-point provides good value for adjustable dumbbell category
- +Adjusts from 5 to 52.5 pounds with convenient weight steps
- +Dumbbells designed for home gym use with solid build quality
Watch-outs
- −Only 2.5-pound increments up to 25 pounds, then jumps to 5-pound increments
- −Some reviewers note Bowflex equipment generally has reliability issues
Rating sources
“Based on my experience with both sets I recommend them if youre looking to equip or upgrade your home gym.”
“i think when you look at them and compare their price and specs and everything like that to the competitors that bowflex despite some issues which i'll talk about did a pretty good job with these”
“I really like these. I think they're well worth the money. If you were to buy individual dumbbells, you're basically looking at buying 15 pairs of dumbbells to replace what this set gives you.”
Our 4.3 score is the average of these published ratings. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
