Small package, lotta power:

Samsung KMF5X0005M (likely DRAM package with 1 GHz dual-core CPU layered beneath)

Motorola MPS14X 60X5V3 1410WeC

Maxim Integrated MAX77836 Low-Voltage Input, 3V/3.3V/5V/ Adjustable Output, Step-Up DC-DC Converter

STMicroelectronics STM32F401B ARM-Cortex M4 MCU with 128KB Flash

0225E8 E225B4

BCD Semiconductor Y831 audio codec

InvenSense MP65M 6-axis gyroscope / accelerometer