The main benefit of setting up a Home Hub is that it allows you to use location-based automation features if your HomeKit devices support them. For example, some thermostats can change the temperature to something more economical whenever you leave your home by using a virtual geographical boundary (geofencing).
A Home Hub also allows you to use Siri to trigger actions when you're away from home. For instance, if you're leaving the office, you could ask Siri to increase the temperature of a connected thermostat at home so that it's nice and cozy when you arrive.
You can use an iPad as a Home Hub (just like you can use an Apple TV or HomePod), and the setup process is incredibly easy. Simply follow the steps below.
How to Set Up Your iPad as a Home Hub
- Launch the Settings app on your iPhone or iPad.
- Scroll down and tap Home.
- Toggle the switch to the green ON position next to Use this iPad as a Home Hub.
Once you've set up your home hub, you'll need to enable two-factor authentication on your iCloud account, otherwise you won't be able to remotely access your HomeKit accessories.
Now that you have everything set up, the next time you're away from home you can give Siri commands on your iOS device to trigger actions, which will obviously depend on the sort of accessories you have installed.
A couple of examples might be "Turn on the living room light" or "Open the garage door," or you could ask Siri to check the temperature of a thermostat, for example. You can find Apple's regularly updated list of all HomeKit-compatible devices here.