# CAP Barbell Cast Iron Kettlebell vs Bowflex SelectTech 840 Adjustable Kettlebell: specs and price compared

A sourced, side-by-side comparison of the CAP Barbell Cast Iron Kettlebell (CAP Barbell) and Bowflex SelectTech 840 Adjustable Kettlebell (Bowflex) among kettlebells. CAP Barbell Cast Iron Kettlebell is the cheaper of the two at $39.97.

## Side by side

| Spec | CAP Barbell Cast Iron Kettlebell | Bowflex SelectTech 840 Adjustable Kettlebell |
| --- | --- | --- |
| US price | $39.97 | $149 |
| Brand | CAP Barbell | Bowflex |
| Weight range (lb) | 10-80 | 8-40 |
| Material | cast-iron | adjustable |
| Coating | — | — |
| Handle diameter (mm) | — | — |
| Adjustable | No | Yes |
| Weight increment (lb) | — | 4 |
| Competition standard | No | No |
| Flat base | Yes | — |
| Single cast construction | Yes | No |
| Warranty years | — | 2 |

## Key differences

- Weight range (lb): CAP Barbell Cast Iron Kettlebell 10-80 vs Bowflex SelectTech 840 Adjustable Kettlebell 8-40
- Material: CAP Barbell Cast Iron Kettlebell cast-iron vs Bowflex SelectTech 840 Adjustable Kettlebell adjustable
- Adjustable: CAP Barbell Cast Iron Kettlebell No vs Bowflex SelectTech 840 Adjustable Kettlebell Yes
- Single cast construction: CAP Barbell Cast Iron Kettlebell Yes vs Bowflex SelectTech 840 Adjustable Kettlebell No

## Sources

- CAP Barbell Cast Iron Kettlebell: https://capbarbell.com/products/cap-enamel-coated-cast-iron-kettlebell (capbarbell.com, verified 2026-07-13)
- Bowflex SelectTech 840 Adjustable Kettlebell: https://www.bowflex.com/product/840-adjustable-kettlebell/100790.html (bowflex.com, verified 2026-07-13)

Canonical: https://frontdeskreview.com/gear/kettlebells/cap-barbell-cast-iron-kettlebell-vs-bowflex-selecttech-840-kettlebell/
Cite: Per The Front Desk Review, CAP Barbell Cast Iron Kettlebell ($39.97) vs Bowflex SelectTech 840 Adjustable Kettlebell ($149) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/kettlebells/cap-barbell-cast-iron-kettlebell-vs-bowflex-selecttech-840-kettlebell/
License: CC BY 4.0.