Table 1.

Product features and their definitions

Product feature	Definition
Product status
Marketed	The product is available for purchase.
Prototype	The product is still in development.
Product type
Automated dispenser	Medication dispensers allow access to medications in 1 or fewer human-initiated action. These devices can hold up to a month’s worth of medications in small cups, strips or prefilled boxes. Medications are released when the user presses a button.
Dosette or pill boxes	Electronic dosette or pill box with sensors records the time at which the dosette or pill box is opened. Some devices may also record which exact compartment is accessed.
Smart vials or vial caps	Electronic vial or vial cap with sensors on the cap or bottle that record the time at which the vial is opened. Data are transmitted to a cloud portal.
Blister packages or blister package holders	Blister package or blister package holder with an electric component with embedded sensors that track when a blister is perforated. Some devices with sensors hold the blister package while others have electronic ink in the foil of the blister package that sense when the foil has been punctured.
Storage boxes	Electronic medication storage box with sensors that record the time at which the box was accessed and transmit this information to a cloud portal.
Inhaler or inhaler devices	Electronic inhaler that digitally records use. Can be the inhaler itself or an electronic device that attaches to an existing inhaler.9
Injectors	Electronic injector that digitally records use.
Cost
Upfront cost	The monetary cost of buying the product or service. This value did not include subscription costs.
Monthly subscription	The monetary cost of monthly subscription use of a product or service. This value includes cost that is mandatory for some products and optional for others.21
Yearly subscription	The monetary cost of yearly subscription to use a product or service. This value includes cost that is mandatory for some products and optional for others.21
Storage capacity
Unit-dose	The ability to store only 1 dose of 1 medication.
Multidose	The ability to store multiple doses of 1 or more medications.
Locking feature	A feature that restricts access to medications without the use of a specific procedure, such as using a key or entering a Personal Identification Number or passcode, or that incorporates facial recognition software.
Portability	Any device that can be easily taken on-the-go and fits inside a purse or small bag.
Alarms	Audio or visual alarms produced by or sent from the product to the user.
Notifications	Alerts including text messages, phone calls or emails sent by the device to a user, caregiver or health care provider.
Mobile phone requirements	Any product that requires a user to download an app or own a mobile phone in order to set up and use the product. Nonuse of a mobile phone limits the use of features of the product or completely limits use of the product.
Connectivity	The manner by which a device is connected or interconnected (e.g., Wi-Fi, Bluetooth, near-field communication) in order to allow for real-time monitoring.
Additional features	Features not defined in the list above.