"In order to manage wearable devices (including watches and bracelets), we need to collect your user information (including but not limited to IMEI, IMSI, device MAC address, software list, device serial number, android ID), device type and device Configuration Data. Network information including IP address, network type and network connection status will be used to improve the network connection experience."
The app collects a broad range of hardware identifiers (IMEI, IMSI, MAC address, Android ID), the list of installed software, and device serial numbers — far beyond what is needed for a fitness tracking app to function.