What features does iPhone have that iPod doesn't have?

I know that iPhone can make calls that iPod can't. IPhone and ipod can also go online. But why is that iPhone is so high a cost but iPods are lower in cost monthly?

Iphone have cellular and data.
ipod only have Wi-Fi

IPhone can be connected to 3G or 4g while iPod can only be connected to Wi-Fi. And iPhone has a speaker and microphone where you can easily talk to people privately while iPod doesn't iPhone also vibrates while iPod doesn't

Well, there isn't much difference… The main one is the iPhone can call and you know that. The other thing is, is that the iPod need to have Internet connection to surf the web. The iPhone doesn't because of 3G or 4G network.