Yes, the smallest home security cameras can be connected to a mobile app for remote viewing. These cameras typically have Wi-Fi capability, allowing them to connect to your home network and be accessed through a dedicated mobile app. The app will typically allow you to view live footage from the camera, receive push notifications for motion detection or other alerts, and even control certain functions of the camera remotely. Additionally, some cameras may offer cloud storage options for saving and accessing recorded footage from anywhere with an internet connection. Overall, with the right technology and setup, the smallest home security cameras can indeed be connected to a mobile app for remote viewing.