They seem like they've been around forever, but the first iPhone came out a decade ago, in 2007. And since then, iPhones (and smartphones in general) have taken over. There are now over 700 million iPhones in use worldwide.
But despite their popularity, one mystery has perplexed users of iPhones. It all has to do with the options it gives you to answer a call. There are two ways it allows you to do it, but what's the rhyme or reason for it?
So why do you get the different options for answering the phone at different times? Is it completely random? The people at Business Insider wanted to find this out too, so they conducted an investigation.
They also tested if it mattered what type of phone the caller was calling from. They found that it didn't matter if it was someone calling from another iPhone, or if they were calling from a Droid or anything else. You could still get either screen for answering the call.
There were still a few other possibilities that Business Insider didn't test. For instance, does it make a difference if the caller is someone you want to hear from? Could the iPhone know who you don't want to talk to, and then give you the option to decline?
Or what if it has to do with whether the person calling is drunk dialing you? Could the phone know who's calling you while drunk, and that's when they give you the option to decline? Seems unlikely, but they didn't investigate this either.
Or maybe your iPhone knows when the caller is going to give you bad news. Perhaps your phone knows when someone's calling to say they've been arrested and need you to bail them out. However, this too doesn't seem like the answer.