Ghostracer is a free app that allows you to use your GPS-enabled Android Wear OS watch as a fully functional running and cycling computer. It supports Strava, Runkeeper, and MapMyRun. You can also track your fitness activities like walking, running, biking, and more. You can also connect to other fitness and health apps, including Heart Rate Monitors, Pedometers, and more.

You can use Ghostracer as a standalone GPS watch, or you can connect it to your Android phone or other devices to use it as a cycling computer or a GPS watch. If you are the owner of a GPS-enabled watch, you can connect it to your Android phone to get a better view of your runs and rides.