According to your description, you need to install Samsung Gear software to connect your mobile phone to Gear S first, and turn on Bluetooth to connect manually through Samsung Gear software. The specific connection method is as follows:
1. Open the Samsung Gear software installed on your phone and click Scan.
2. Click the name of the available device.
3. Click "OK" in the pairing prompt on Gear S and "OK" in the pairing prompt of Samsung Gear software on the mobile phone.
4. When connecting, follow the prompts of Samsung Gear software on the mobile phone, agree to the relevant legal statement, and display the brief introduction of Gear, and you can start using it.
Note: 1. The mobile phone downloads Samsung Gear software through Samsung App Store /MoreServices; Samsung App Store doesn't have a mobile phone. Please go to apps.samsung.com/gear to download Samsung Gear software (orange icon).
2. NFC connection is not supported.
3. If the GEAR S is connected to the mobile phone device, it needs to be reset before connecting other mobile phone devices. After reset, the data in gear S will be cleared. Please back up the data in advance.
If you need help, please visit support.samsung.com.cn, and official website will provide you with multi-channel service support!