iPhone 14 and iPhone 14 Plus

Sudden speed shifts
A new high g‑force accelerometer senses extreme accelerations or decelerations up to 256 Gs.

Abrupt changes in direction
A high dynamic range gyroscope monitors drastic changes in a car’s orientation.

Laboratory crash tests
We developed advanced motion algorithms by performing head-on, rear-end, side-impact, and rollover crash tests.

Cabin pressure changes
The barometer can detect pressure changes caused by deploying airbags.

Loud sound levels of impact
While you’re driving, the microphone identifies the extreme sound levels of a collision. For privacy, all processing is done on your iPhone.

Real-world crash data
We used public crash data from accidents to make Crash Detection as accurate as possible.

https://www.apple.com/iphone-14/