Please try using the steps below to display the callers name on the Stratos.
1. Turn on notifications on Amazfit Watch App
2. Check settings on your phone, and make sure call notifications are on
3. Go to phone Settings > Application > Application Manager > Amazfit Watch > Permissions > Tap the toggle next to each permission to turn it on
4. Go to phone Settings > Privacy & Safety > Add permissions > Contacts > Amazfit Watch is turned on