While many deployments of smart devices rely on Wi-Fi connectivity, we have been seeing success with Bluetooth Mesh networks that don't necessitate a hub or gateway. With better energy usage than Wi-Fi and better smartphone adoption than ZigBee, Bluetooth LE deployed as a self-healing mesh provides interesting new approaches for connecting local device-area networks. We are still waiting for the formal approach to emerge from the Bluetooth SIG but have already had successful deployments. We particularly like the lack of infrastructure required to stand up a decentralized network but still retain the option to "progressively enhance" the system with the addition of a gateway and cloud services.