Bowflex SelectTech 840 Adjustable Kettlebell Review (2026)
Six kettlebells in one (8–40lb) with a dial system — the space-saving path to swings, presses, and carries.
Our Verdict
Editorial 4.0/5 (not customer ratings)
Best for: Home trainees adding kettlebell work without a rack of bells.
Check Bowflex Price on Amazon →Overview
Bowflex SelectTech 840 Adjustable Kettlebell from Bowflex competes in the adjustable kettlebells category, where it earns our "Best Overall" pick. Six kettlebells in one (8–40lb) with a dial system — the space-saving path to swings, presses, and carries.
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Pros and Cons
What We Like
- 8–40lb in one bell
- Fast dial changes
- Space-saving
What We Don’t
- Boxier than cast bells
- Not for bottoms-up work
- 40lb ceiling for advanced users
Specifications
| Range | 8–40lb |
|---|---|
| Adjustment | Dial |
| Sizes | 6 |
| Warranty | 2yr |
Who It’s For
Home trainees adding kettlebell work without a rack of bells.
Who Should Avoid It
Hardstyle purists who want cast-iron feel.
How It Compares
Here is Bowflex SelectTech 840 Adjustable Kettlebell alongside other adjustable kettlebells editorial listings. These are not individualized product recommendations:
| Product | Best For | Range | Adjustment | Sizes | Warranty | Score | |
|---|---|---|---|---|---|---|---|
| Bowflex SelectTech 840 Adjustable Kettlebell Best Overall |
Home trainees adding kettlebell work without a rack of bells. | 8–40lb | Dial | 6 | 2yr | Editorial 4.0/5 (not customer ratings) | Amazon → |
| Titan Fitness Adjustable Competition Kettlebell Best Heavy |
Serious kettlebell athletes saving space. | ~26–70lb | Internal plates | — | 1yr | Editorial 3.8/5 (not customer ratings) | Amazon → |
Scores are our editorial ratings. Prices change frequently — always check the live Amazon listing.
Ready to Buy?
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See Bowflex SelectTech 840 Adjustable Kettlebell on Amazon →Frequently Asked Questions
Is Bowflex SelectTech 840 Adjustable Kettlebell good for beginners?
Bowflex SelectTech 840 Adjustable Kettlebell suits home trainees adding kettlebell work without a rack of bells. Its main trade-offs: boxier than cast bells and not for bottoms-up work If those don't apply to you, it's a solid choice in the adjustable kettlebells category.
Where is the best place to buy Bowflex products?
Amazon typically offers competitive pricing, fast shipping, and easy returns on Bowflex products. Prices change frequently, so compare the current Amazon listing against the brand's own site before buying.
Is Bowflex SelectTech 840 Adjustable Kettlebell worth the money?
We score it 8/10 on value and 8/10 on performance. 8–40lb in one bell. The main reasons to look elsewhere: hardstyle purists who want cast-iron feel.
Related Products
Bowflex SelectTech 552 Adjustable Dumbbells
The category benchmark: 5–52.5lb per dumbbell with a fast dial system, replacing 15 pairs of weights in one compact footprint.
PowerBlock Elite EXP Adjustable Dumbbells
Steel-caged adjustables expandable from 50 to 90lb per hand — the buy-once-cry-once choice.
Yes4All Adjustable Cast Iron Dumbbells
Classic spinlock cast-iron dumbbells — slow to change but nearly indestructible and cheap.
Disclosure & disclaimer: As an Amazon Associate we earn from qualifying purchases. This review is educational, reflects our editorial opinion, and is not medical advice — consult a healthcare professional before starting any supplement or exercise program.