MYHIXEL I, the green model, is the original device. It has a warming system, an anatomically realistic interior that simulates penetration, and vibrations designed to help with various sexual conditions. MYHIXEL II, the blue model, is the upgraded version with additional features like IPX7 water resistance, Bluetooth connectivity, and motion and speed sensors. This enables the app to connect and collect personalized behavioral data for program customization and progress tracking. Plus, its warming and vibration functions have been optimized for an even better experience. Both devices are fully compatible with all of our programs.