Building a smart watch using esp 32

[varundusane]

Hello guys , need some solid advice on esp support for wearable devices, actually i'm building a smart watch and looking for some tiny and fast esp soc or module which can able to fulfill the requirements like ble, wifi. >100mhz fr., external sensors support, low power consumption and touch panel support.
i've found some soc's , (idk whether they are good for my purpose or not )
1. esp32-pico-d4
2. esp21 s2
please suggest if anything else is better..

[chegewara]

https://github.com/Xinyuan-LilyGO/TTGO_ ... omparison-

[becorey]

The PICO is the smallest integrated solution.
Otherwise if you use the more "bare" mcu esp32 and external psram and flash, those two components are larger than the mcu itself.

[bobolink]

I just saw this. I was waiting for the GPS version.
I wonder how they get those tiny maps in there

https://www.cnx-software.com/2021/03/21 ... rosd-slot/