When evaluating smart planters, prioritize IoT integration capabilities such as Wi-Fi or Bluetooth connectivity for app-based monitoring. Key hardware specs include automatic irrigation systems with low-noise water pumps, full-spectrum LED grow lights with adjustable timers, and integrated sensors for soil moisture, ambient temperature, and nutrient levels. Ensure the water tank capacity aligns with your target market's needs (e.g., 2L to 5L for home use) and that the power supply is compatible with local voltages (110V-240V).