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The Bowflex SelectTech 840 is an adjustable kettlebell that replaces six fixed weights with one dial-selectable unit. It covers roughly 8 to 40 lb (3.6 to 18 kg), so you can move from swings to presses without a rack of bells. At $149.99 at Best Buy as of November 8, 2026, it sits near the low end of its recent range, and four stores carry it new.
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Out of stockSold by Good Point GroupReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
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Lowest price we've seen: $149.99 on Nov 8 at Best Buy. Tracked across 3 stores since Nov 8.
Owners rate it highly, with 4.8 out of 5 from 3,409 ratings. Most praise the space savings and fast weight changes for home workouts. Complaints center on the size of the bell and the 40 lb ceiling.
Swing into action with the Bowflex select tech 840 kettlebell, the adjustable kettlebell that provides 6 different weights in one compact design. Save space by selecting the weight you want with the turn of a dial, allowing you to achieve total-body results from the comfort of your home. Keep working out with JRNY wherever you go from your phone or tablet; try the Mobile-Only Membership free for 2 months. On-demand, full-body strength classes are now available on the journey app. With the 840 kettlebells, you'll combine cardio and strength in one quick, effective workout, helping you build muscle, burn fat, and boost confidence.