Difference between 便利さ and 利便性


If I understand correctly, 便利さ and 利便性 have the same meaning.

Is there any difference in nuance or usage?

Maybe 利便性 is more formal?




便利 is a quality something provide, 利便 is a quality people perceive.

> ○ 便利を図る  
>  ○ 利便を図る
>
> ○ 便利な製品  
>  ? 利便な製品
>
> ? 人々の便利さ  
>  ○ 人々の利便性

It's true that 利便性 sounds more formal than 便利さ, but it mainly comes from the
difference between -性 and -さ. Theoretically, 便利 also has a form of 便利性 as well
as 利便 has 利便さ, but apparently disfavored than their counterparts according to
Google search.

