There are two deciding factors: 

1) The size and shape of your pool: the cleaning performance of pool cleaning robots can vary depending on the size and shape of your swimming pool. Some robot cleaners are better suited than others to certain pools (cleaning steps, gently sloping bottoms, diamond point pools, etc.). So, these elements are deciding factors and will help you to narrow down the many options.

With the Quattro Sport, Polaris unveils  4-wheel design that enables users to get a deeper clean with cutting-edge features that, until now, were not found in a pressure-side cleaner. These features include:

An electric robotic cleaner works independently of the filtration system and can meet all your requirements.