Meet the Sensor-1: a smart, portable security system that you can attach to your valuable items to get real-time motion alerts. It can be armed based on your proximity. While it can operate without a mobile app, it can communicate with smartphones, tablets, and desktop computers. It can log events when out of range.
Sensor-1 has a 3-axis accelerometer, gyroscopic sensor, and magnetometer. It is iBeacon compatible. The app is compatible with iOS and Apple Watch devices. More information is available on Indiegogo.