So what does "SOS" actually mean? Here's everything you need to know about the term and its military origins, plus the new feature on your iPhone that utilizes it for your safety. What does 'SOS' mean ...

Many believe SOS has a specific meaning, but you'd be surprised to know that the letters aren't an acronym at all. That said, what does SOS actually stand for?

Although SOS mode indicates you don't have cellular service, it doesn't mean the phone is useless. Most modern phones allow calling, texting and internet browsing over wi-fi.