New Delhi, Oct. 5 -- Smart home devices, over the years, have become an important part of the modern life. They have made life convenient in a way that users no longer need to get up to operate devices anymore. These devices have brought in support for features such as voice commands, automation and sensor-based operations to users' living rooms. This automation has also improved energy efficiency. That said, not every smart home upgrade is actually smart for your wallet. Some connected devices can quietly reduce electricity consumption, prevent appliances from running unnecessarily and help you keep a closer eye on household usage. But others may simply give you an app, voice controls or a few automation tricks without delivering enough ...