A dash camera typically records continuously until its storage is full, then overwrites the oldest footage.

Dash cameras record in a loop, continuously capturing video until the memory card reaches capacity. Most dash cams use 1080p or 4K resolution and record in 1- to 5-minute segments. When the card fills, the oldest files are automatically deleted to make room for new recordings. The total recording duration depends on the memory card size, video resolution, and frame rate. A typical 32GB card can store approximately 4-5 hours of 1080p footage, while a 128GB card can hold 16-20 hours.

Factors affecting recording duration

• Memory card capacity: Larger cards store more footage
• Video resolution: Higher resolution uses more storage space
• Frame rate: Higher frame rates consume more storage
• Compression format: H.264 or H.265 codecs affect file sizes

Recording duration by memory card size

Motion detection and parking mode

Many dash cams include motion detection or parking mode, which records only when movement is detected. This feature extends recording time by reducing unnecessary footage. Parking mode typically activates after the vehicle is parked for a set period, using either motion sensors or impact detection to trigger recording.

Impact of loop recording settings

Loop recording divides video into segments (usually 1, 3, or 5 minutes). When the card fills, these segments are overwritten in chronological order. Shorter segments make it easier to locate specific events but may create more files to manage. Most dash cams allow users to adjust segment length based on their preferences.