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Home security cameras typically retain footage for 14 to 180 days on a cloud plan, or roughly 5 to 7 days of continuous 1080p recording on a 128 GB microSD card. Two different limits are at work. Cloud retention is a fixed window set by your subscription tier, after which clips are deleted permanently. Local storage is a loop: the camera overwrites the oldest file when the card fills, so the duration depends on card size, resolution, compression and whether the camera records continuously or only on events. Free tiers are the shortest, often 3 days or none at all.
How long does each cloud plan keep clips?
Retention is set by the plan, not the camera, and the spread across brands is wide. Figures below reflect published US consumer plans as of 2026 — confirm the current terms before buying, because these tiers change and regional plans differ.
| Approach | Typical retention | What is stored | Ongoing cost |
|---|---|---|---|
| Budget cloud tier | 14 days | Motion and person events only | Low monthly |
| Mainstream cloud tier | 30 days | Event clips, some with AI sorting | Low to mid monthly |
| Premium cloud tier | 60 days events, around 10 days continuous | Events plus a rolling 24/7 buffer | Mid to high monthly |
| Long-retention tier | Up to 180 days | Event clips | Mid monthly |
| Free tier, where offered | 3 days or live view only | Thumbnails or short clips | None |
| Local microSD | Until the card loops | Whatever the camera writes | None |
| Network video recorder | 2 weeks to 3 months | Continuous, all channels | None after hardware |

How many days fit on a memory card?
Storage is consumed at a fairly predictable rate, so this is arithmetic rather than guesswork. A 1080p stream using H.265 compression runs roughly 1 GB per hour of continuous recording; H.264 is about double that; 2K roughly doubles again and 4K roughly doubles once more. Event-only recording changes the picture completely, because a camera on a quiet side yard may write only a few minutes an hour.
- 64 GB, 1080p continuous — about 2 to 3 days.
- 128 GB, 1080p continuous — about 5 to 7 days.
- 256 GB, 1080p continuous — about 10 to 14 days.
- 128 GB, 2K continuous — about 2 to 3 days.
- 128 GB, event-only recording on a moderate-traffic door — commonly 4 to 8 weeks.
Use a card rated for continuous surveillance write cycles. Standard cards are built for occasional photo bursts, and owners consistently report failures within a year when a general-purpose card is left looping day and night in a camera.

How do you keep a clip past the window?
Download it the day you find it. Every retention limit is a deletion, not an archive, and no brand keeps a private copy for you after the window closes. In practice that means opening the clip in the app, using the save or share button to write it to your phone, and moving it somewhere permanent.
Two habits make the difference. First, raise retention before you need it rather than after, because the upgrade does not resurrect clips already deleted. Second, if the camera has a microSD slot, use it alongside the cloud plan — the card keeps recording when your internet drops, which is exactly when a cloud-only camera records nothing at all. Cameras with usable local storage are flagged in our home security camera picks, and the subscription-free options are set out in using a camera without a subscription.
One more variable that quietly shortens retention: cameras set to record continuously rather than on events fill a card many times faster. Whether that trade is worth it is covered in do home security cameras record all the time.
We never buy, install or physically handle the products we rank. Every recommendation comes from aggregated owner reviews, star ratings, review volume and published expert consensus — see how we rank.
More from this hub: Smart Home & Security · Cameras without Wi-Fi · How many cameras do I need? · Best home security camera · How we rank
