Here are some tips to try if you are having issues syncing your REM-Fit Active with the REM-Fit Active App:
REM-Fit Active is too far away. Your REM-Fit Active needs to be within 10-30 feet of the phone you are syncing with. Please make sure your REM-Fit Active is close by.
Battery is low. If your REM-Fit Active is nearly empty, you may not be able to sync. Make sure you have sufficient charge in the REM-Fit Active.
Wireless services may not be on. Make sure you have a good data connection (Wi-Fi, 3G, LTE, etc.) and that bluetooth is turned on on your phone.
Re-pair the REM-Fit Active. Your REM-Fit Active App may have "forgotten" your REM-Fit Active device. If this happens, open the REM-Fit Active App, click on the "Settings" icon in the top left of the screen (it looks like 3 stacked lines). Scroll down to the "Device Settings" tab and select it. Once there, click on the "Find" button. Then, select your REM-Fit Active from the device list. Follow the prompts to pair your REM-Fit Active App with your REM-Fit Active device.
Are you using a new phone or operating system? Sometimes when you switch or upgrade phones (or have an operating system update on the phone), the REM-Fit Active may need to be re-paired with the App. If this happens, open the REM-Fit Active App, click on the "Settings" icon in the top left of the screen (it looks like 3 stacked lines). Scroll down to the "Device Settings" tab and select it. Once there, click on the "Find" button. Then, select your REM-Fit Active from the device list. Follow the prompts to pair your REM-Fit Active App with your REM-Fit Active device.