A sports watch allows you to keep track of your sporting activities. With a GPS sports watch, you can easily log any cycling trip. There's also sports watches with built-in heart rate monitor for maximum convenience. Other sports watches or activity trackers can be paired with a chest-mounted heart rate monitor. You can instantly upload your GPS data and heart rate data to Strava or Garmin Connect for example. Then you'll be able to see if you beat the KOM or QOM and how intense your training was.