The OKO plant care assistant uses smart sensors to keep track of your plant's needs and sends alerts to your phone.It can monitor water, temperature, air humidity, and pH of the soil, ensuring your plant's optimal growth.The OKO app includes a care calendar to track your plant's watering, fertilizing, and other activities.Prices for the OKO plant care assistant start at $78 for a single sensor and vary depending on the bundle options.