Competition kettlebells are universally colour-coded to signify the different weights, so you can find the weight you need at a glance. Competition kettlebells are all the same size regardless of weight, making them ideal for practising high-repetition exercises such as the Snatch.
The handles of competition kettlebells are uniform as well and the window of the bell handle has more of a rectangular shape, and the handle diameter is smaller than regular cast iron kettlebells. Smaller handles help reduce grip fatigue, which is incredibly important in competitive kettlebell lifting.
Competition kettlebell handles are more porous than cast iron handles, which allows them to absorb chalk better, which is also essential for high-repetition exercises.