What size SD card for a Garmin dash cam?
For most Garmin dash cams a 128GB or 256GB high-endurance card is the practical size: the Garmin Dash Cam Mini 3 (1080p) keeps about 22 h 3 min on 128GB at a typical bitrate. The maximum supported size is in each model's manual.
Garmin Dash Cam Mini 3, Ultracompact 1080p HD Dash Cam
1080p
A current Garmin model from our verified catalog. Card sizes for it are in the table below.
How long does each Garmin model record?
Recording times use typical bitrates for each resolution (12 Mbps 1080p, 16 Mbps 2K, 20 Mbps 2.5K, 32 Mbps 4K, plus 10 Mbps per extra channel), not Garmin's own published figures, which vary by model and quality setting. Where a listing does not state the channel count, the model is treated as front only.
| Model | Setup | 64GB | 128GB | 256GB |
|---|---|---|---|---|
| Garmin Dash Cam Mini 3 | 1080p | 11 h 1 min | 22 h 3 min | 44 h 5 min |
| Garmin Dash Cam X110 | 1080p | 11 h 1 min | 22 h 3 min | 44 h 5 min |
| Garmin Dash Cam 67W | 2K | 8 h 16 min | 16 h 32 min | 33 h 4 min |
| Garmin Dash Cam X110 | 1080p | 11 h 1 min | 22 h 3 min | 44 h 5 min |
| Garmin Dash Cam 67W | 2K | 8 h 16 min | 16 h 32 min | 33 h 4 min |
| Garmin Dash Cam X210 | 2K | 8 h 16 min | 16 h 32 min | 33 h 4 min |
| Garmin Dash Cam X310 | 4K | 4 h 8 min | 8 h 16 min | 16 h 32 min |
| Garmin Dash Cam X310 Compact 4K Ultra HD Touchscreen Camera | 4K | 4 h 8 min | 8 h 16 min | 16 h 32 min |
| Garmin Dash Cam X310 4K with 140° View | 4K | 4 h 8 min | 8 h 16 min | 16 h 32 min |
| Garmin Dash Cam X310 4K with 140° Lens | 4K | 4 h 8 min | 8 h 16 min | 16 h 32 min |
Garmin dash cams and cards that fit them
Check the camera's maximum supported card size before buying.
SANDISK 128GB High Endurance Video microSDXC Card with Adapter for dash cam and home...128GB / high endurance$36.99Check price on Amazon
Integral 128GB High Endurance microSD Card for CCTV, Dash Cam & Security Cameras, 4K...128GB / high endurance$38.95Check price on Amazon
SANDISK 256GB High Endurance microSD Card + Adapter256GB / high endurance$69.99Check price on Amazon
Frequently asked questions
What is the maximum SD card size for a Garmin dash cam?
It depends on the model. The supported maximum is printed in each Garmin manual and often in the product listing; current 4K models generally accept larger cards than older 1080p ones. A card larger than the stated maximum may not format or may record unreliably, so check the specific model before buying a 256GB or 512GB card.
Which SD card should I use in a Garmin dash cam?
Use a high-endurance microSD card from a major maker, rated for continuous video, in a size at or below the camera's maximum. Format it in the camera before first use and every few weeks after. Some makers sell their own branded cards; any quality high-endurance card of a supported size works the same way.
How long does a Garmin dash cam record on 128GB?
At typical bitrates, a 1080p front-only model records about 22 h 3 min on 128GB and a 4K front and rear model about 6 h 18 min. Your model's quality setting, codec and event-file reserve change the real figure; the table above lists each Garmin model we carry.