https://devzone.nordicsemi.com/f/nordic-q-a/108776/what-version-of-ble-does-a-nrf52840-with-s140-7-3-0-and-sdk-17-1-supportThe product page for the nRF52840 says that the chip supports BLE 5.4. But the S140 softdevice seems to mention only 5.2 features. What is the highest level of BLE compatibility that a product developed using the combination above can claim? I do understanden-USTelligent Community 13Wed, 28 Feb 2024 18:26:01 GMThttps://devzone.nordicsemi.com/thread/471408?ContentTypeID=1Wed, 28 Feb 2024 18:26:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e54bdd77-3b68-497b-b395-4bbf881c3021robca<p>Thanks for the prompt reply and the links!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/471398?ContentTypeID=1Wed, 28 Feb 2024 17:25:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b673d56c-f90b-4fa2-aaf4-1759b9526ce3Vidar Berg<p>Hello,</p> <p>You can determine which version of the BLE protocol the SoftDevice has been qualified for by&nbsp;looking up the&nbsp;<a title="Bluetooth QDIDs" href="https://infocenter.nordicsemi.com/topic/comp_matrix_nrf52840/COMP/nrf52840/nrf52840_ble_qdid_qual_matrix.html?cp=5_0_3_4">Bluetooth QDID</a>. For instance, s140 v7.2.0 is qualified for BLE 5.1.&nbsp;For comparison, the current Bluetooth stack in the nRF Connect SDK is qualified for BLE 5.4. However, note that many Bluetooth features are optional. Therefore, the version number alone does not provide a complete picture in terms of which BLE features are supported.</p> <p>QDID Listing search:&nbsp;<a href="https://launchstudio.bluetooth.com/Listings/Search">https://launchstudio.bluetooth.com/Listings/Search</a>&nbsp;</p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>