<human>:  Are there many differences between the latest iPhone and previous models?
<bot>: Yes, there are many differences between the latest iPhone and previous models. The latest iPhone has a larger display, improved processor, longer battery life and improved camera technology, farther reaching cellular coverage, and faster wireless data connections. In addition, it has the latest iOS software, and new features such as augmented reality and Face ID. All these changes make the latest iPhone a much more powerful device than the previous models.