When added to your list of trackers, the Hydration tracker will calculate a goal that is based off of the weight metric in your Sonic Boom account. Rule of thumb is to drink half your body weight in ounces per day. To log activity in this tracker, use the + button to increase the amount of ounces you've had. Should you need to remove some ounces, use the - button. Each day that you reach your hydration goal by filling up the cup, you'll receive a point.
Boomer tip - you'll know when your hydration goal is reached when the cup is green, with a check mark and when the graph shows a solid green bar for each day that is logged.