There are differences in components used on STWIN1A and STWIN1B, as example STWIN1B includes latest IMP23ABSU ultrasound microphone and latest BlueNRG-M2 BLE modules, also STSAFE secure element is included in BOM. On STWIN1B you can run more SW packages, e.g. anomaly detection compared to STWIN1A. All ST packages for STWIN1A run also on B version.
