RePhone Kit is an open source modular phone kit that changes the way we put our phone into use. It provides a new form of phone customization, and the easiest solution to wearable/IoT development.
Walltech OLED BTLE Smart Watch v6.1
A BT 4.0 fitness-tracking smart watch for Android+iOS with a 1.5" color OLED display, SD card, NFC, wireless charging, and precision IMU.