A G-sensor detects sudden impacts or abrupt motion and automatically triggers and locks the current recording as an event so that the file is protected from being overwritten by normal loop recording.
When parking mode is enabled, the G-sensor detects motion or impacts while the vehicle is parked and automatically starts and locks event recordings to preserve footage of collisions or disturbances.
Dash cams span a range of resolutions depending on the model, commonly including 480p/VGA, 720p, 1080p (Full HD), 2K, and 4K.
Front lenses commonly cover roughly 120° to 170°, providing wide road coverage. Rear cameras are usually narrower, with some models offering around a 90° field of view.
Dash cams use loop recording to capture video in short segments and automatically overwrite the oldest files. Footage is stored on microSD cards, with supported capacities commonly ranging from 32GB up to 128GB or 256GB depending on the model.
Recordings can be accessed by removing the microSD card and viewing files on a computer or card reader. On models with connectivity, you can also preview and download recordings via a companion app over built‑in Wi‑Fi or by connecting the dash cam with a USB‑C cable.