Every pet camera has to put its recordings somewhere, and the two dominant options, a memory card inside the device, or a subscription-backed upload to the manufacturer's cloud, behave so differently that the choice quietly determines what you'll actually be able to do the next time you need footage. It's not just a technical detail buried in a spec sheet; it affects your ongoing cost, who besides you can potentially see your dog's day, and whether you have any recording at all if your internet drops or the camera goes missing.
How local (SD card) storage actually works
With local storage, the camera writes video directly to a microSD card slotted inside it, typically overwriting the oldest footage in a continuous loop once the card fills up. There's usually no recurring fee attached to this, you pay once for the card and own the footage on it outright. The trade-off is capacity: a 32GB card recording continuous 1080p video might only hold a few days before the loop starts overwriting itself, though many cameras stretch that considerably by only recording in short clips triggered by motion rather than around the clock. You'll want to check the specific camera's compression and recording mode before assuming a given card size buys you a week versus a day.
The bigger practical risk with local-only storage is that the footage lives in exactly one place. If the camera is stolen, damaged, or the card itself fails (SD cards are not built for years of constant read/write cycling and do wear out), that history is gone, there's no backup copy sitting anywhere else. Many local-storage cameras still let you view a live feed or pull recent clips remotely through an app, but that live-view layer typically still requires the camera to be online; it's the recording itself that stays put on the card rather than being copied off-site.
How cloud storage actually works
Cloud storage flips that model: instead of (or in addition to) writing to a card, the camera uploads clips, usually motion or sound-triggered events, sometimes continuous video on higher tiers, to the manufacturer's servers, and you view them through the company's app wherever you have internet access. This is where the recurring subscription comes in. Free tiers are common but usually limited to a short rolling window, often 24 hours to a few days of event clips before older ones are deleted. Paid plans unlock longer history (30, 60, or more days is typical among mainstream brands), and continuous 24/7 cloud recording, rather than motion-triggered clips only, is usually reserved for the more expensive tiers, if it's offered at all.
The subscription itself is billed monthly or annually, per camera in most cases, which matters a lot if you own more than one camera: a $5-10/month plan sounds trivial until you're paying it three times over for a multi-camera household, indefinitely, for as long as you want that history preserved.
Who can actually see cloud footage
This is the part worth reading the fine print on before you buy. Cloud footage sits on infrastructure owned and operated by the camera company, not you, and every vendor's privacy policy and terms of service spell out (usually in dense legal language) the circumstances under which staff can access stored video, commonly for technical support, fraud or abuse investigation, or in response to a law enforcement request. Encryption practices vary meaningfully between brands: some offer end-to-end encryption where even the company can't view your footage without your key, while many others only encrypt data in transit and at rest with keys the company itself holds, meaning access is a policy decision rather than a technical impossibility. If footage privacy matters to you specifically, it's worth actually opening the privacy policy of a camera you're considering and searching for terms like "law enforcement," "third party," and "end-to-end" rather than assuming all cloud cameras handle this the same way.
What happens when the internet goes down
Local storage keeps working through an internet or Wi-Fi outage, the camera can usually keep recording to its card even while offline, since writing to a card doesn't require a network connection. Live viewing and push alerts still need connectivity, but the recording itself continues. Cloud-only cameras, by contrast, generally can't record anything during an outage, because there's nowhere local to put the footage while the upload path is down, some cameras buffer a short amount and upload it once the connection returns, but many simply have a gap in their history for the duration of the outage.
Weighing cost over time
A useful way to compare honestly is to project the cost forward two or three years rather than looking at the upfront price alone. A local-only camera's ongoing cost is close to zero beyond an occasional card replacement. A cloud subscription compounds every month it's active, and multiplies per camera, a household running three cameras on a $7.99/month individual plan is looking at roughly $290 a year, every year, for as long as the subscription runs. Neither approach is objectively "better", it depends on whether you value owning the footage outright and paying nothing ongoing, or want off-site backup, longer searchable history, and the convenience of cloud access badly enough to pay for it indefinitely. Quite a few cameras on the market support both simultaneously, recording locally as a backup while also uploading to the cloud, which sidesteps the trade-off entirely if the hardware and subscription tier support it.
