Researchers in China have first time exploited the natural phenomenon of synchronization into practical sensor design, which significantly enhanced the resolution of microelectromechanical systems (MEMS) accelerometers. A team led by X.W. and Z.J. at Xi’an Jiaotong University achieved synchronization of the sensing oscillator in the accelerometer and an external reading oscillator through the injection locking. The synchronization leads to a fivefold boost in the resolution of the accelerometer. The team also developed a frequency-tracking system to break through the limitation of the synchronization range thereby enabling the device to work in a wider dynamic range. In addition to the direct application in accelerometers, the technique can also be used to improve the performance of other MEMS resonant sensors.