Your Cat® phone has a small LED light that displays different colours for notification purposes.
Flashing Red:
Low battery warning, less than 15% Battery.
Solid Red:
Battery level is below 15%, but currently being charged.
Solid Orange:
Battery level is between 15% and 90%, but currently being charged.
Solid Green:
Battery level is above 90%, but currently being charged.
Flashing Blue:
Notification has been received, (unread message, missed call, unread email etc).