How Does Apple HealthKit Work?

Apple's HealthKit platform for iOS and Health app serve as a central place for users to store, share and access health data from third party apps. However, Apple also supports some Bluetooth accessories natively within the Health app.

This means accessory manufacturers can skip developing an app companion for their product, and instead allow HealthKit automatically to connect to the device and control it. Get more information on apple healthkit via

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HealthKit will support accessories such as glucose sensors, heart rate monitors, blood pressure monitors, and heat thermometers. Apple uses official specifications for Bluetooth LE devices from This allows iOS to establish an automatic connection with the devices without manufacturers having to worry about software.

HealthKit will automatically establish a connection to devices within range. It will also collect data and save it in the Health app. Notifying other apps who might be interested in accessing the data via HealthKit API will also help.

These manufacturers used to have to develop companion apps that would allow them to pair their products with other devices. App developers who offer users the ability to connect accessories from third-party manufacturers will also be benefited by this change. They won't need to write additional code to perform data collection and pairing. Instead, they'll get it through HealthKit.

Apple encourages accessory manufacturers to create other accessories, even if they don't fall within the category of natively supported devices. However, these accessories will need an iOS app to implement HealthKit API. Apple will allow accessories that use CoreBluetooth or Wi-Fi and the ExternalAccessory Framework. However, Apple has not discussed any restrictions for HealthKit accessories.