When I saw this I immediately thought of the Xiaomi Mi Band. The Mi Band isn't meant to affix to the back of a watch but otherwise the two devices are feature

When I saw this I immediately thought of the Xiaomi Mi Band. The Mi Band isn't meant to affix to the back of a watch but otherwise the two devices are feature equivalent. They both have a vibrator, an array of multicolored LEDs, accelerometers, and Bluetooth. The primary differences being battery life and software. While they're radically different form factors, they appear to be similar in volume. The battery life on the Mi Band exceeds 30 days which makes me wonder why this thing can only manage 36 hours. Speaking of software, this thing seems to do everything I wish the Mi Band did. The Mi Band is such a waste in this regard.