BetaFPV Cetus Lite: Flight Controller

Multiple sources describe the Cetus Lite's flight controller in terms of a 6-axis inertial measurement unit (gyro + accelerometer) with no magnetometer (Digital Camera World: '6-axis IMU sensor'; Oscar Liang: 'gyro and accelerometer sensors only'). Space.com mentions qualitative descriptors 'small' and 'basic' but does not conflict with the 6-axis IMU characterization. Therefore, the most accurate and commonly referenced term across sources is '6-axis IMU'.