With the launch of the 16-inch MacBook Pro, Apple introduced its largest laptop to date. For the most part, the design of the laptop is the same as its predecessors save for the larger screen, and even internally, the way the components are laid out also appears to be similar, with the exception of a new keyboard and also new thermal architecture.
However, according to a report from MacRumors, they obtained an internal document that was sent to Apple Authorized Service Providers in which it was discovered that there could be one new mysterious component. This led to the publication reaching out to iFixit in which they found a new lid angle sensor in the laptop.
This sensor was found near the left-side hinge of the notebook along with a magnet with an arrow to indicate polarity. Unfortunately, there is no mention of what this new sensor does, although it has been speculated that it is a more sophisticated sensor to detect when the laptop’s lid has been closed. However, iFixit believes that it could also be used by Apple to determine how often the lid has been opened, closed, or adjusted that could help troubleshoot hardware issues like fray flex cables and so on.
MacRumors also offers a speculation that maybe, just maybe, it could be for a yet-to-be announced feature for macOS, but there’s no evidence of that for now.