Space-Saving Adjustable Kettlebell: 8-in-1 Weight, 5-40 lbs 🔍 Hover to zoom
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Space-Saving Adjustable Kettlebell: 8-in-1 Weight, 5-40 lbs

★★★★½ 4.8 (7,646 Amazon reviews)
46 people viewed this today
$129.98 on Amazon
✨ 4.4 / 5
💖 Best For
Home gym owners who want one kettlebell that covers most exercises without buying a full set.
⚠️ Not Ideal If
You primarily do two-handed kettlebell swings — the handle is too narrow for comfortable double-grip work.
$127.50 ▼ $2.48 vs site price
Price & availability from Amazon Product Advertising API, last updated 4 months ago. Prices on Amazon change frequently.
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Space-Saving Adjustable Kettlebell: 8-in-1 Weight, 5-40 lbs on Amazon
✨ Our Take

Why We Recommend It

Stop tripping over six kettlebells just to get a decent workout. The Bowflex SelectTech 840 is for anyone tired of sacrificing floor space or workout variety. It replaces six individual kettlebells (8 to 40 lbs) with a single dial-adjustable unit — but the weight increments aren't as granular as traditional sets.

$129.98 on Amazon · Price may vary
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🌟 Features

What Makes It Stand Out

💖

Turn one dial, get six weights

Instead of bending down to grab a different kettlebell, you just rotate the dial — your set continues without breaking rhythm.

💖

Frees up floor space instantly

One unit replaces six kettlebells, meaning the corner of your living room or garage can finally hold something else.

💖

Grows with your strength

Start at 8 lbs for goblet squats and work up to 40 lbs for heavy swings — no need to buy a second set for months.

💭 Verdict

Pros & Cons

✓ What We Love

  • Space-saving design replaces six kettlebells
  • Quick weight changes between exercises without putting the bell down
  • Smooth dial mechanism with audible lock at each weight
  • Includes 2-month free JRNY membership with form-tracking

○ Worth Knowing

  • Handle is too narrow for comfortable two-handed swings
  • Weight increments are fixed (8, 12, 20, 25, 35, 40) — no fine-tuning between those steps
  • Dial mechanism can feel slightly stiff when new, and may loosen over time
💫 Honest Advice

Who Might Want to Skip

💭
You primarily do two-handed kettlebell swings and have large hands.
Better option: Consider a traditional cast iron kettlebell with a wider handle, or a competition-style bell.
💭
You need precise weight progression between 20 and 25 lbs (e.g., 22.5 lbs).
Better option: Look for a set of fixed-weight kettlebells or a different adjustable model with smaller increments.
💕 Real Stories

How People Love Using It

✨ You're in your living room, 15 minutes before a Zoom call, and want a quick full-body workout.
✨ You're a beginner who bought a single 15 lb kettlebell and now it's too light.
🔍 Comparison

How It Stacks Up vs The Competition

The BowFlex SelectTech 840 Adjustable Kettlebell offers quick weight changes from 8 to 40 lbs, ideal for home gyms. Compare with other adjustable kettlebells and dumbbells.

Feature This Product Competitor A Competitor B
Best For ✓ Best Quick weight changes Budget-friendly kettlebell Versatile dumbbell set
Weight Range ✓ Best 8-40 lbs 5-40 lbs 5-40 lbs
Price $129.98 $39.99 ✓ Best $29.99
Material Steel with plastic base ✓ Best Cast iron Steel with foam grip
Space Saving ✓ Best Replaces multiple bells Replaces multiple bells Replaces multiple dumbbells
💡 Quick Guide

Is This Right for You?

First-time buyer in this category
→
If you're new to kettlebells and want one tool to start with, this is a solid choice — just be aware of the narrow handle for two-handed moves.
Power user or experienced buyer
→
Verify that the weight increments (8, 12, 20, 25, 35, 40) match your programming. If you need finer steps, look elsewhere.
Budget-focused buyer
→
At ~$130, this is cheaper than buying six separate kettlebells. If you only need one weight, a single fixed bell is cheaper.
Buyer who has returned a similar product before
→
Check the handle width first — if you returned a previous adjustable for being too narrow, this one likely has the same issue.
📋 Details

At a Glance

Brand Bowflex
ASIN / SKU B07X64MXBS
Price $129.98
Amazon Rating 4.8 ★ (7,646 reviews)
Material Steel and plastic housing
Dimensions Approximately 10 x 8 x 8 inches
Weight 8 to 40 lbs (adjustable)
Color / Options Black/gray
Weight Options 8, 12, 20, 25, 35, 40 lbs
Warranty 2 years
⭐ Customer Voices

Real Amazon Reviews

★★★★★
Robert Jones ✓ Verified Purchase 📅 March 7, 2026 18
★★★★★
Adam ✓ Verified Purchase 📅 November 19, 2025 13
★★★★★
Vermont57 ✓ Verified Purchase 📅 April 30, 2026 1
★★★★★
Rc ✓ Verified Purchase 📅 June 19, 2026
★★★★☆
R. Rodriguez ✓ Verified Purchase 📅 January 18, 2024 33
★★★★★
Derek Wingard ✓ Verified Purchase 📅 February 16, 2026 1
★★★★★
Books Customer Since 1996 ✓ Verified Purchase 📅 February 13, 2026 4
★★★★★
Marisa ✓ Verified Purchase 📅 April 18, 2025 45
★★★★★
Stephen C ✓ Verified Purchase 📅 August 29, 2024
★★★★★
Adam Taing ✓ Verified Purchase 📅 May 22, 2022
Read all reviews on Amazon →

Ready to get yours? ✨

Prices on Amazon move often. This was $129.98 when we last checked.

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