This thesis presents a mechatronics master degree project held at Tritech TechnologyAB by two students from The Royal Institute of Technology (Stockholm, Sweden).It covers a study of the future agenda with IoT (Internet of Things) and the devel-opment of an evaluation framework for designing end devices in IoT systems. Thethesis also presents the leading technical solutions for IoT end devices and a toolfor choosing among available technologies. Lastly, the thesis reports from an in-depth study on power consumption and battery life-span of the two communicationtechniques BLE (Bluetooth Low Energy) and Thread.Data has been collected from literature studies by published authors, company pa-pers and from interviews with experts in the area. Th...