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microSD Card Recording Modes, Video Resolutions, and File Sizes on the Garmin Dash Cam 46
Your Garmin Dash Cam can record video in 720p or 1080p For instructions on how to change the video resolution, see Video Resolution Settings
The device will record non-stop when powered on. When the microSD card is full, the non-protected videos will be overwritten. Saved videos will not be overwritten.
The maximum amount of footage that can be recorded or saved on a microSD card depends on the Dash Cam's video resolution setting and the size of the card.
See the table below for estimated microSD card recording times:
SD Memory Card Rated Capacity
| Mode | Bitrate | 8GB | 16 GB | 32 GB | 64 GB | 128 GB | 200 GB | 256 GB | 512 GB |
| 1080p30 | 20 Mbps | 0.8 hours | 1.5 hours | 3.0 hours | 6.1 hours | 12.2 hours | 19.1 hours | 24.4 hours | 48.8 hours |
| 720p30 | 8 Mbps | 1.7 hours | 3.4 hours | 6.9 hours | 13.8 hours | 27.6 hours | 43.1 hours | 55.2 hours | 110.4 hours |