The SmallGarden has a trough on the side reserved for neatly adding water to the garden reservoir.
When adding water, your SmallGarden will let you know how full the garden is by flashing the notification LED following colors:
Red - reservoir is 25% full
Orange - reservoir is 50% full
Yellow - reservoir is 75% full
Green - reservoir is 100% full
The water level will display in the app in realtime.