What kind of phone do I need to receive notifications from Hero? You will need a smartphone with operating system iOS 11.0 or Android 5.0 or later. Related articles How to connect multiple users to one Hero? What if my loved one doesn't use a mobile phone? How does Refills and delivery work and how do I set it up? Do I need Wi-Fi to use Hero? What if I lose a medication cartridge, the power adapter, travel bar, or safety key?