I am seeking to develop a smart wristband that connects to a mobile APP via Bluetooth. The wristband should feature an LED display capable of changing between 16 different colors based on signals from the APP. Each wristband needs to maintain a single designated color after initial programming through the APP, and should only change when reprogrammed. The device requires a rechargeable battery with minimum 12-hour life, water-resistant construction, and comfortable silicone material suitable for all-day wear. The wristband must be able to store its color setting even when powered off and automatically display the same color when turned back on. Essential components include Bluetooth connectivity, RGB LED display, memory storage for color settings, and a simple on/off mechanism. The target retail price point should allow for bulk orders of 1000+ units.