Adjustable Kettlebell 18kg vs Cast Iron Kettlebells (lb)

The adjustable kettlebell is the better buy for most home lifters. It replaces a rack of bells with one shell and six cast iron plates, and its 35mm handle and competition-style dimensions suit swings, cleans and presses. The cast kettlebells are the better buy if you want a fixed bell that never needs adjusting, and the 4.9 rating from over 1,100 owners shows they hold up. Build quality favors the single-cast bells for durability; the adjustable wins on range and space.

• Choose the adjustable kettlebell if you have limited space, want one bell that covers light to moderate loads, and value a consistent handle size across weights.
• Choose the cast kettlebell if you want a fixed, single-piece bell with no plates or locking mechanism to fuss with, and you lift heavier than 18kg.