The survey found that nine percent Americans said they did not let five minutes pass without looking at their handsets.
The length of time between smartphone screen checks shrank with the ages of owners.
The survey found that wireless users have a striking attachment to mobile devices and a concern about the exposure of their personal information.
The firm Lookout advised people to protect devices with passcodes or other locking tools and to keep devices safe in zipped pockets or closed bags when out in public.
Lookout, which provides free security software for smartphones and tablets, also advised people to be wise about which websites are visited and which applications are downloaded, the report added.