If you are unable to find the Redmi Watch 5 Active after downloading and installing the Xiaomi Wear APP, it is because the Xiaomi Wear APP is an older version and does not support binding with this model. To resolve this issue, scan the QR code displayed on the watch, which will direct you to the binding interface and prompt you to download the Mi Fitness APP. Alternatively, you can manually download and install the Mi Fitness APP from the application store on your phone. Once installed, open the APP and follow the prompts to bind your watch properly.