How to Connect
The compatible App is HeroBand III. You can directly scan the following QR code to download the App with your phone. For iPhone, you can also search for HeroBand III in the App Store. You can connect the watch with the phone in the App to get better use. (Tip: Don’t connect the watch via Bluetooth directly. Please bind the watch with App.)
Smart Phone System Requirements
Note: When the phone is connected to the watch, it needs to keep the Bluetooth of the phone on. Make sure there is no other matching device in the Bluetooth of the phone. Don’t connect to your mobile phone directly via Bluetooth.
https://manuals.plus/kalinco/p22-smart-watch-manual#ixzz7qWm0EWQI