Home security cameras are sold as one product, but they are really two different systems wearing the same housing. One is wired: power-over-ethernet (PoE) cameras, each fed by a single network cable, recording to a box in your closet. The other is wireless: battery-powered cameras that talk to your Wi-Fi and upload clips to a company's cloud, usually for a monthly fee. The marketing for the second kind leans hard on the word easy, and for the first afternoon it is. The decision that actually matters is which system you can still trust in year three, in January, while you are away visiting the grandchildren.
This guide walks through the real differences: what each type costs over five years, what winter does to batteries, where your footage ends up, and which choice fits renters, settled homeowners, and anyone who has decided their ladder-climbing years are behind them.
How the two systems actually work
A PoE camera gets both its power and its data connection through one ethernet cable, which runs back to a network video recorder (NVR) inside the house. There are no batteries, no Wi-Fi involvement, and recording continues even if your internet is down, because the footage is written to a drive you own. The price of all this reliability is the cable: someone has to fish wire through the attic or crawlspace, which is either a sweaty weekend or a paid job.
A wireless battery camera needs no cables at all. You screw a bracket to the siding, snap the camera on, and connect it to your Wi-Fi in minutes. In exchange, you take on three ongoing dependencies: the battery has to stay charged, the Wi-Fi signal has to reach, and the company's cloud service has to remain available and affordable, because on most consumer models the useful features - stored clips, person detection, longer history - live behind a subscription.
What winter does to the easy option
Battery cameras are at their weakest exactly when a lot of homes are emptiest: the cold months. Lithium batteries drain noticeably faster in freezing weather, and many will not accept a charge at all below freezing, which means a small attached solar panel may do nothing for weeks in a northern winter. Owners in cold climates routinely find that a camera advertised at six months per charge wants fresh batteries every couple of months from December through March.
Each of those recharges is a trip up a ladder, which is worth taking seriously if the cameras will be mounted high and you would rather not be on a ladder in February, or on one at all. A practical compromise if you do go wireless: mount cameras at a height you can reach from a step stool, but high enough that nobody can simply reach up and lift the camera off its magnetic mount. If you already know that nobody in the household will be climbing anything, that is a strong argument for wired cameras or, at minimum, wireless models that accept a plug-in power adapter.
The five-year math
The sticker prices point one way and the totals point the other. Professionally installed PoE typically runs $150 to $400 per camera depending on how hard the cable runs are, so a four-camera system lands somewhere around $1,200 in labor before hardware. That number stops a lot of shoppers cold, and it is exactly the number the wireless kits are priced against.
But the wireless kits carry a meter that never stops running. Cloud plans commonly cost in the neighborhood of $10 to $15 a month for a multi-camera household, and the per-feature pricing has crept upward across the industry, with capabilities that used to be free migrating behind the paywall. At $12.50 a month, eight years of subscription equals that entire $1,200 installation bill, and at the end of those eight years you own nothing extra; stop paying and most systems degrade to live view only. A PoE system with an NVR has no monthly fee at all. The realistic comparison is:
- Wireless kit: lower entry cost, minutes to install, batteries and subscription forever, feature set controlled by the vendor.
- PoE system: higher entry cost, cable labor once, then years of recording with no recurring bill and no battery calendar.
For a renter, or anyone likely to move within about two years, the wireless math still wins, since you can unscrew the brackets and take the system with you. For a settled homeowner, the crossover comes fast.
Where the footage lives, and who else can reach it
With local recording, video stays on a drive in your house, and you hold the only copy. With cloud recording, your comings and goings sit on a company's servers, protected by that company's security practices and your account password. Local storage is the stronger privacy position, especially for cameras that can see indoors. The cloud's one genuine advantage is worth naming honestly: if a burglar takes or smashes the recorder, the offsite copy survives. Some NVR owners split the difference by locking the recorder in a closet or bolting it inside a cabinet.
Brand origin matters here too. In November 2022 the Federal Communications Commission adopted an order banning new equipment authorizations for gear from several manufacturers it deems a national security risk, including video surveillance equipment from Hikvision and Dahua, two companies whose hardware powered a large share of the budget PoE market. Cameras already on walls did not stop working, but the supply of cheap, high-spec, name-brand PoE gear thinned out, and some low-priced cameras sold online are rebadged versions of restricted hardware. Before buying, spend five minutes confirming who actually manufactures the camera, and treat a suspiciously cheap listing with no identifiable maker as its own answer.
The network is part of the security system
Every wireless camera is also a Wi-Fi device competing for airtime with your laptop, your streaming, and your video calls. A few high-resolution cameras uploading motion clips can make a modest router feel crowded, and radio is radio: signals can be blocked by walls, drowned out by a neighbor's equipment, or deliberately interfered with. A cable cannot be jammed; it can only be cut, which requires being physically at your house on camera.
Whichever type you choose, the router becomes part of your security perimeter and deserves the same attention as the locks. The Federal Trade Commission's guidance on securing a home Wi-Fi network covers the essentials: current encryption, a strong router password, and up-to-date firmware. The Cybersecurity and Infrastructure Security Agency's home network security recommendations add the points camera owners most often skip, in particular changing every factory-default password and updating the cameras' own firmware, since an internet-connected camera with a default password is less a security device than a doorway.
A short decision path
- Renting, or moving within two years? Wireless, eyes open about the subscription. Take it with you when you go.
- Staying put in a home you own? Wired PoE for the main perimeter - doors, driveway, the approaches you actually care about. Get quotes from a local low-voltage electrician; the job is smaller than most people expect.
- One spot where cable is truly impossible, like a detached shed? A single battery camera there is a reasonable exception, mounted at step-stool height.
- Either way, insist on local storage or a no-fee tier existing at all, verify the manufacturer, and change every default password the day the system goes up.
The pattern behind all of it: pay once, in money or in cable-pulling, and the system quietly works for a decade. Pay monthly for convenience and the convenience needs recharging, resubscribing, and rechecking forever. A camera system earns its keep on the worst night of the year, and the boring wired kind that records every uneventful Tuesday is the one most likely to be awake for it.
