iPhone 15: 4 things the new iPhone can do that your old one can't

The iPhone 15 is hitting store shelves next week, but not all Apple lovers are ready to turn in their old phones just yet. Many want to know if the latest generation of iPhones are worth the splurge. 

At first glance, the iPhone 15 appears to share many of the same features as its less-expensive predecessors. However, the latest generation of the device includes a few new functions that could make a big difference in users' lives. 

Here are four things the iPhone 15 can do that your old iPhone can't.