Gruber claims the home button, which also houses the fingerprint sensor, will be embedded into the front glass panel, making it invisible.
Gruber's claims line up nicely with rumors posted by tech site i4u that a future iPhone will have an embedded home button.
Recently, Chinese tech giant Xiaomi released new phones with the same technology that Apple described in a patent for alternative home buttons, which could give us an idea of how a future home button on the iPhone 10 could work.