Read more about the Nikon 1 J4.
April 9, 2014 9:01 PM PDTUpdated: April 9, 2014 9:01 PM PDT
Photo by: Aloysius Low/CNET
/ Caption by: Lori Grunin
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Secure your smartphone
These quick tips will help you protect the privacy of your data and keep your device safe from thieves.