Not the cheapest camera out there, but this feature seemed useful:
ACCIDENT AUTO-DETECTION: when Gravity Sensor detects a collision, the current video is locked, important footage is protected, which bring you a safe driving experience.
Checks out on Fakespot.
https://www.amazon.com/dp/B01DLWBPCA
Use Code: GF5XQQ2Y
Final price: $44.99