WASHINGTON — A new study finds that babies as young as six months are already smartphone and tablet savvy.

Presented at the Pediatric Academic Societies annual meeting, the study of 370 children ages six months to 4 years, found that over a third of children under the age of one used either device. By age two, the majority of them were using them, their parents reported.

Other findings: 97 percent of the families’ homes had televisions, 83 percent had tablets, 77 percent had smartphones and 59 percent had Internet access.

Some 52 percent of children under one year had  had watched TV, 36 percent had touched or scrolled a screen, 24 percent had “called someone,” 15 percent used apps, and 12 percent played video games. Some 26 percent of 2-year-olds and 38 percent of 4-year-olds used devices for at least an hour a day.