Even, even more chips on the logic board:

AKM Semiconductor AK8963C 3-Axis Electronic Compass

Bosch Sensortec BMA282 Accelerometer

Bosch Sensortec BMP282 Pressure Sensor

STMicroelectronics STM32L052T8 32-Bit Arm Cortex-M0+ Microcontroller w/ 64 Kb Flash

Diodes Incorporated PI3USB102E 480 Mbps USB 2.0 Switch

Texas Instruments TPS3898 Adjustable Voltage Monitor

ON Semiconductor FXMA2102 2-Bit Voltage Translator/Buffer/Repeater Isolator