article_snippet: On-body detection was first spotted by  fan site Android Police in the Smart Lock menu of a Nexus 4 running Android Lollipop.
article_snippet: But there have since been numerous reports of the phone appearing on other Lollipop devices, and not just Google's own Nexus range.
article_snippet: It appears to be linked to the most recent version of Play Services -  a tool used to update Google's built-in apps.
article_snippet: MailOnline has contacted Google for more information.
article_snippet: Apple made the fingerprint reader, or Touch ID, mainstream on Apple iPhone 5S and Samsung added a reader on Apple Galaxy S5.
highlights_snippet: Feature was first spotted by fan site Android Police on a Nexus 4 .
  
highlights_snippet: Option appeared in the Smart Lock security menu on Android Lollipop .
  
highlights_snippet: Google hasn't confirmed  feature but Google's been spotted on multiple devices .
  