An iPhone function can let strangers see where children holding the phones are - and a watchdog warns parents to find out exactly what the devices are capable of before bringing them into their homes.
Apple devices, including the iPhone, iPad and iPod, have become the most desired presents this Christmas, with children as young as 3 displaying affinity for the gadgets.
But a feature on the phones - a GPS that pinpoints their exact location - has been cited as a potential safety concern.
When the feature is switched on, just taking a photo records the phone's location, making it plain for anyone to see once online. Other applications broadcast where a phone is as part of social networking.
Websites have been set up to show people some potential dangers - including one called "Please Rob Me" that discloses where people live and when their houses are vacant.
Netsafe development manager Sean Lyons said children and parents must be aware they could be broadcasting where they were in real-time.
"It's not just kids but everybody who don't think through how much information they're sharing."
He said Netsafe had not heard of any cases where location data from such phones had led to problems.
Meanwhile, Herald readers on Facebook debated if their children should have access to Apple technology.
Alison Dorman said her children, 2 and 5, used her iPhones and iPods. "The world is going the way of technology so why not introduce it to them early?"
But Michelle Webby warned that she knew a boy who was given a laptop before he was 3, and at 7 he could not interact well.
Inger Mortensen said children so young should not get such expensive technology. "Young children need to ride bikes and kick balls and play with Lego."
But Emma Bedford said her children had both new and old-fashioned toys and had a good balance.
Parents warned on iPhone dangers
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