The conversation between human and AI assistant.
What's a good way to use an extra iPhone 4?
Okay, thanks for the suggestions. What about using it as a security camera? How would I set that up?
You could download a security camera app such as Manything or Presence onto the iPhone 4 and then use it to stream video to your other devices. You could place the phone in a visible location in your home to act as a deterrent to potential intruders.