What's the difference between "Restore Defaults" and "Reset Mouse"?

What's the difference between "Restore Defaults" and "Reset Mouse"?

"Restore Defaults" only resets DPI, polling rate, scroll direction, smooth settings, and shortcuts to their defaults; it keeps the pairing information, so no re-pairing is needed.

"Reset Mouse" returns the mouse to factory state; in addition to restoring the above settings, it also clears the BLE1/2/3 pairing records, so you'll need to pair the Bluetooth device again afterward; the USB receiver pairing is retained.