Hello,
I have done a small wearable device before like a bracelet that uses GSM, GPS, Blueetoth, Small buzzer, Li-Io battery and chargers,. I have work also with complicated processors like ARM cortex and with DDRAM2,3, SDARAM, FLash memorys.
Contact me and I will tell you more about my wearable device and we can also talk about your project.
Thank you for your time,
Have a Nice Day.