The iPhone 15 Pro models will feature a "buttonless design" thanks to additional Taptic Engines, according to multiple corroborated reports, so what do we know about the change so far? Apple analyst Ming-Chi Kuo was first to report that the volume and power buttons on this year's two high-end iPhone models will adopt a solid-state design, similar to the iPhone 7's home button, replacing a mechanical button design that physically depresses. Apple uses a similar method for its Mac trackpads, which do not physically move and simply mimic the feeling of being pressed with small vibrations. The new iPhones will reportedly feature additional Taptic Engines on the internal left and right sides to provide physical feedback to users, making it seem as though they are pressing real buttons. The change means that the number of Taptic Engines in each iPhone will increase from one to three. Barclays subsequently appeared to corroborate Kuo's report , saying that