When we talk about a , we are referring to a Bluetooth chipset (the physical silicon) that has successfully passed all Bluetooth 5.0 qualification tests. This certification guarantees:
A genuine 5.0 BQB chipset website will honestly list limitations. For example, some "5.0" chips support 2 Mbps but not long-range coded PHY. Transparency is a mark of legitimacy. 5.0 Bqb Chipset Website