Samsung Gear S2 SM-R730A User Manual page 29

Basics
Connecting the Gear to a new smartphone
When you connect the Gear to another smartphone, the Gear automatically resets and all data is removed from its memory.
Make sure you back up any important data stored on your Gear.
1 Back up your Gear's data on your smartphone.
• On your smartphone, open the Apps screen and tap Samsung Gear > Settings > Back up and restore > Back up data.
2 End the connection between your Gear and smartphone. Refer to
3 Connect your Gear to another smartphone.
A new Gear device cannot connect to a target smartphone that is already paired with another Gear.
Disconnecting the Gear
19
for more information.