Populating the board, we find this fittingly Lilliputian array of chips:

STMicroelectronics STM32F439ZI 180 MHz, 32 bit ARM Cortex CPU

Macronix MX69V28F64 128 Mb flash memory

InvenSense MPU-6500 6-axis gyroscope / accelerometer

Broadcom BCM4334WKUBG dual-band 802.11n, Bluetooth 4.0+HS, FM receiver combo chip

Maxim Integrated MAX77836 (the same chip we found in the Gear 2—likely the micro-USB interface controller and Li+ battery charger)

Melfas 8FM006A (likely touchscreen controller)

Texas Instruments 1211A1 standalone USB transceiver chip