Raise to wake is available on older non-FaceID phones. I think this feature was enabled by the M7 motion coprocessor chip https://en.wikipedia.org/wiki/Apple_mo

Raise to wake is available on older non-FaceID phones. I think this feature was enabled by the M7 motion coprocessor chip https://en.wikipedia.org/wiki/Apple_motion_coprocessors https://en.wikipedia.org/wiki/Apple_motion_coprocessors which first showed up in the iPhone 6.