Update: Never mind. Qualcomm says that this is no longer a thing. It looks like the software on the phones being demoed at the India launch event are running old software.
Both the Nexus 5X and 6P are getting some special camera features thanks to improved hardware, and now we’ve learned about one more. Thanks to the device’s launch in India (and one hands-on video in particular), we’re getting another look at the device’s Settings app, and within there’s something interesting: Nexus 6P (and the Nexus 5X) will support “Double twist for camera”…
We already knew that you can double tap the power button to immediately launch the Camera app, but it looks like Google wants to give users yet another way to quickly access the vastly-improved cameras of its latest Nexus handsets. With “Double twist for camera,” you’ll be able to open the Camera app by simply twisting your wrist twice while the device is locked.
Here’s the relevant segment from the below video, showing the Display options page:
No one noticed this until now, but it appears that Qualcomm noted the feature in its blog post about the Nexus 5X and 6P from last month. “With Context Core, both the Nexus 5X and 6P cameras can launch with two twists of the user’s wrist and display notifications with a nudge,” the post says.
And as you can see, both of these quick Camera access features are toggles in the Settings app, so you can disable one or both at your own preference.