A mirror of all the relevant datasheets
http://www.st.com/content/st_com/en/products/microcontrollers/stm32-32-bit-arm-cortex-mcus/stm32f4-series/stm32f429-439/stm32f439zg.html
Suppliers: Mouser, Digikey and others.
Notes: Pebble uses the wafer-level chip package
http://www.j-display.com/english/product/wearable.html
Suppliers: None found so far
Notes: The one used by Pebble has the same dimensions but has some dead areas where this one has the full area active
FPGA in WLCSP16 Package.
Used as display driver in the Pebble.
There is an open source toolchain & synth for this FPGA!
http://www.ti.com/product/CC2564
Dual mode Bluetooth controller
Digital MEMS microphone.
Three-Axis, Digital Magnetometer
http://www.ti.com/product/drv2603
Haptic Drive With Auto-Resonance Detection for Linear Resonance Actuators
https://www.maximintegrated.com/en/products/power/battery-management/MAX14690.html Wearable Charge-Management Solution
https://www.bosch-sensortec.com/bst/products/all_products/bmi160/
low power 6-axis IMU
http://www.linear.com/product/LT3009
low dropout linear 3.3V regulator
http://www.cypress.com/file/218866/download
16MB 1.8V 16-bit multiplexed parallel flash
https://www.mouser.com/datasheet/2/315/PANAS44867_1-2560594.pdf
2.8mm x 2.3mm Side-operational Edge Mount Light Touch Switches
Main PCB is held down with M1.2 screws with a length of about 3mm.