AURA Strap for Apple Watch works only with iOS 11+ and watchOS 6.1+ compatible devices.
To install the app on your Apple Watch, you need to follow these steps:
1. Install the AURA App on your iPhone by this link.
2. Go to Watch app on your iPhone;
3. Find and install the AURA app.
If AURA App doesn't appear on Apple Watch, you need:
1. Update your Apple Watch to latest software;
2. Turn on and off airplane mode on the iPhone and Apple Watch;
3. Wait up to 10 minutes while the app will be installed.