The highest priority should be the weight limit of the desired item which should not be exceeded by the users weight. On this note: The products themselves differ in their weight as well. If for example there is no one living in the household who could lift a six kilo chair that – thanks to its rubber feet – sticks to the ground, a lighter version would be favorable. Furthermore, the size of the shower matters. A big solid shower chair with armrests does not fit in every shower. In case of a rather small shower cabin, a shower stool might be a better option.