Why the key 5 in the mobile has a dot on it?

Question

Why the key 5 in the mobile has a dot on it?

Answer 1

If you Can't See You Feel Around For The Dot.

Answer 2

It is to guide the user that the 5 is in the middle, and to use as a "base" when typing.

Answer 3

it is actually for people who are blind and have bad vision... because if you touch the 5 with the dot you know what number goes on the top, bottom, left and right.

hope this helps

  

Answer 4

The dot is raised so when you feel it, you know you're touching the 5 key without needing to look at the keys.