1. Operating comfort: The height of the virtual Home button needs to be designed according to ergonomic principles, so that the user's fingers can touch, click and slide comfortably to avoid fatigue and discomfort.
2. Visual experience: The height of the virtual Home button needs to match the screen size, resolution and display effect of the iPhoneX, so that users can feel the feedback of the screen when touching and clicking, and improve the user's operating experience.
3. Security: The height of the virtual Home button needs to be designed high enough to prevent users from touching the screens in other areas by mistake, thus improving the security and stability of the mobile phone.