The SM-G770 and SM-N770F have reportedly been certified by the Bluetooth Special Interest Group (SIG). This leak appears to confirm that these 2 model numbers do in fact refer to the Samsung Galaxy S10 Lite and Note 10 Lite respectively. In addition, it is now certain that they both have Bluetooth 5.
https://www.notebookcheck.net/The-Samsung-Galaxy-S10-and-Note-10-Lite-variants-are-now-Bluetooth-certified-devices.446040.0.html