Pew said : Phone problems plague the nearly out of ten young adults who have a cell phone . Nearly 70 % of U.S. cell users receive unwanted sales calls or messages . Nearly eight in ten cell users experience slow download speeds . Smartphone owners are more likely than owners of feature phones to experience problems .
Pew survey : Phone problems plague the nearly nine of 10 U.S. adults who have a cell phone . Nearly 70 % of U.S. cell users receive unwanted sales calls or messages . Nearly eight in 10 smartphone users experience slow download speeds . Smartphone owners are more likely than owners of feature phones to experience problems .