Wired vs WiFi CCTV Cameras: Which Should You Choose?
By the DC Fire & Security engineering team — installing and maintaining fire and security systems since 2010. Updated June 2026.
Quick answer
Wired (PoE) CCTV is better for anything that matters: it is more reliable, supports higher resolution without compression compromises, can't be defeated by WiFi jamming or router failure, and records continuously. WiFi cameras suit renters, temporary needs and single-spot monitoring — but they are an accessory, not a security system.
Why do professionals install wired CCTV?
- One PoE cable carries power and data — no plug socket needed at the camera
- No dropouts: footage doesn't depend on WiFi signal strength or a domestic router staying up
- Continuous recording to an NVR, not clips-to-cloud when motion happens to trigger
- Full resolution and bitrate — WiFi cameras compress heavily to survive wireless bandwidth
- Jamming resistance: WiFi deauthentication attacks against wireless cameras are a documented burglary technique
- No subscriptions: footage lives on your recorder, not behind a monthly cloud fee
When do WiFi cameras make sense?
Renters who can't run cables, a single problem spot like a side gate, temporary monitoring, and budgets under a few hundred pounds. Battery and WiFi cameras (Ring, Eufy, Blink) are genuinely useful at what they do — visibility and notifications — provided you understand the limits: motion-triggered clips with missed seconds at the start, cloud dependence, batteries to charge, and footage quality that varies with signal.
What about wireless professional systems?
Don't confuse consumer WiFi cameras with professional wireless transmission. Commercial systems sometimes use dedicated point-to-point wireless links to connect a far building or pole camera back to the NVR — engineered links with directional antennas, not domestic WiFi. That remains a wired PoE camera at each end; only the backhaul is wireless. It's the right answer for gatehouses, yards and car parks where trenching is impractical.
Frequently Asked Questions
Do wired CCTV systems work during a power cut?
Can burglars really jam WiFi cameras?
Is installation of wired CCTV disruptive?
Can I mix wired and WiFi cameras?
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