Self-Powered E-Ink Display Driver

I want an ultra-low-power driver board that can run a small E-Ink panel completely untethered. The module must expose both WiFi and Bluetooth so it can receive data from a web API or a local mobile app and refresh the screen on demand... (Budget: $30 - $250 USD, Jobs: Arduino, Bluetooth, Electrical Engineering, Electronics, Embedded Systems, Firmware, PCB Layout, WiFi)