Lillygo makes a couple of interesting options built around the ESP32: T-Watch-2020 - $26 - http://www.lilygo.cn/prod_view.aspx?TypeId=50053&Id=1290&FId=t3:5005

Lillygo makes a couple of interesting options built around the ESP32: T-Watch-2020 - $26 - http://www.lilygo.cn/prod_view.aspx?TypeId=50053&Id=1290&FId=t3:50053:3 http://www.lilygo.cn/prod_view.aspx?TypeId=50053&Id=1290&FId... T-Wristband - $18 - http://www.lilygo.cn/claprod_view.aspx?TypeId=21&Id=1282&FId=t28:21:28 http://www.lilygo.cn/claprod_view.aspx?TypeId=21&Id=1282&FId...