WhatsApp today introduced messaging service with live location sharing feature. This service is similar to the option of sharing your current location with your contacts but this option is dynamic, and offers real-time updates on the location. So as long as whatsapp is running in the background your friends who you have opted to share your location, can track you down.
To enable this feature, go to contacts, select the location, and select “Share Live Location”. This feature uses your phone’s native GPS feature to detect your location accurately.