Once upon a time, pet care was a demanding but simple responsibility. But, befitting this age of doggy pampering and dog whisperers, Fujitsu Ltd. said there's still something missing between man and his four-legged best friend: information on how the dog feels at any given moment.

In what Fujitsu claims is the first pet management service of its kind, the Japanese electronics company said it will launch on Wednesday a new Web-linked pet healthcare management service, called "Wandant", that will allow owners to count their...