Meet the Pocuter: a coin sized WiFi & Bluetooth Arduino compatible microcomputer ready for your DIY projects. It comes with a full color OLED display, ATSAMD21G18A 32-Bit ARM Cortex-M0 processor, 3 assignable buttons, an accelerometer, and temperature/ambient light sensors. It has a Micro SD card connector for up to 512GB.
The Pocuter measures only 26 x 23mm. Its 96x64p screen can display 16-bit colors. You can easily load sketches and images with a Micro SD card. The Pocuter even has a microphone on board to detect voice commands.