HRS Heart Rate Service (heart rate depends on A0 for Nucleo and A2 for Dongle)
CRS Cable Replacement Server service (proprietary service from STM, similar to Classic Bluetooth SPP). Redirect console I/O like crs-emit, crs-key.
Real Time Clock (32 bit UNIX time stamp, valid times are from 1.1.2000 to 31.12.2099 because of the STM32WB RTC peripheral) time!, time@, and .time (YYYY-MM-DDTHH:MM:SS ISO 8601).