The Bowflex SelectTech 840 adjustable dumbbell single is a game-changer for home gym enthusiasts looking to maximize space without sacrificing workout variety. This innovative piece of fitness equipment replaces an entire rack of dumbbells, offering weight adjustments from 5 to 40 pounds in a single, compact unit. Whether you're a beginner building your first home gym or an experienced lifter optimizing your training space, the SelectTech 840 delivers professional-grade performance in a dumbbell that fits in your closet.
In this comprehensive review, we'll break down everything you need to know about the Bowflex SelectTech 840, from its adjustable weight system and build quality to real-world performance and value for money. We'll also compare it with other adjustable dumbbells on the market and help you determine if it's the right choice for your fitness goals and budget.
The Bowflex SelectTech 840 adjustable dumbbell single is an excellent investment for anyone serious about building a functional home gym without clutter. Its combination of weight range, build quality, and ease of use makes it one of the best adjustable dumbbells available today. While the single-dumbbell purchase requires buying two units for traditional strength training, the space savings and convenience factor make it worth the investment. Highly recommended for home gym enthusiasts, busy professionals, and anyone looking to streamline their workout equipment collection.
Check Current Price on Amazon →For most exercises, yes. This listing is for a single dumbbell. Most strength training routines require a pair, so you'd need to purchase two units to perform standard dumbbell exercises like dumbbell presses and rows.
Weight adjustments take just 2-3 seconds using the dial selector. This makes it ideal for supersets and circuit training where you need to change weights between exercises quickly.
Absolutely. Starting at just 5 pounds, the SelectTech 840 is perfect for beginners. You can progressively increase weight as your strength improves, making it a single dumbbell that grows with your fitness journey.
Bowflex typically offers a 2-year manufacturer's warranty on SelectTech dumbbells, covering defects in materials and workmanship.
While the dumbbell is built durably, Bowflex doesn't recommend dropping adjustable dumbbells as this can damage the internal mechanism. It's designed for controlled strength training, not CrossFit-style drop movements.
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