Only use iOS phones: iOS phones can count steps themselves, but for the installed Huawei Health App, the source of counting steps is only the bracelet, so the data of Huawei Health App for iOS phones only comes from the bracelet.
Android phone: Huawei Health App will automatically count the data of bracelets and mobile phones, and the display data you see is the result of intelligent merger.
Multi-device: Huawei Health App will intelligently merge the data generated by all logged-in mobile phones under the same account. If there are both Android phones and iOS phones under the account, then the data displayed in the iOS phone is the result of the intelligent merger of Android phones and wearable devices.