connects to bluetooth devices such as watch...screen doesnt light up n

What happens when it connects to bluetooth devices such as watch....calls and messages coming to watch but screen doesnt light up nor sound come through.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0