Samsung Galaxy S6 User Manual page 77

Note: Due to different specifications and features
of other Bluetooth-compatible devices, display and
operations may be different, and functions such as
transfer or exchange may not be possible with all
Bluetooth compatible devices.
Delete a Paired Device (Unpair)
When you unpair from a Bluetooth device, the two
devices no longer recognize each other. To connect
again, you have to pair the devices.
1. Verify your Bluetooth is active.
2. From the Bluetooth settings page, tap
and then tap Unpair to delete the paired device.
Settings 71 Bluetooth