Question 1

What's the difference between an NVR and a DVR?

Accepted Answer

An NVR (Network Video Recorder) works exclusively with IP cameras connected over a network, while a DVR (Digital Video Recorder) is designed for analogue cameras connected via coaxial cable. NVRs process video data that has already been encoded by the camera itself, which means better image quality, easier cabling (Cat5e/Cat6 instead of coax), and support for PoE. If you're building a new system from scratch, an NVR is almost always the right choice — DVRs are mainly relevant when upgrading an existing analogue installation. You can compare both options in our DVR category.

Question 2

How many channels do I actually need for a home or small business?

Accepted Answer

For most homes, a 4-channel NVR is sufficient — covering front door, back garden, garage, and one internal area. Small businesses with a single premises typically need 8 channels. Go to 16 channels if you have a larger site, multiple entry points, or want to monitor a car park separately. The key rule: buy one step up from what you need today, as adding cameras later to a maxed-out NVR means replacing the whole unit.

Question 3

Do I need a PoE NVR, or can I use a separate PoE switch?

Accepted Answer

Both approaches work, but a built-in PoE NVR is simpler and generally cheaper for smaller setups. With a standalone NVR plus a separate PoE switch, you have more flexibility — you can place the switch closer to the cameras and run a single uplink cable to the NVR — but it adds cost and another device to manage. For 4–8 cameras in a compact installation, integrated PoE is the cleaner solution. For larger or more distributed deployments (cameras spread across a building), a dedicated managed PoE switch often makes more sense.

Question 4

Is H.265 really worth it over H.264 on an NVR?

Accepted Answer

Yes, unambiguously — H.265 (HEVC) reduces file sizes by roughly 40–50% compared to H.264 at the same visual quality, which directly translates to longer retention on the same storage. The catch is that both your NVR and your cameras must support H.265 for the benefit to apply. Most cameras and NVRs sold today support it, but older or very cheap cameras may not. If you're buying new hardware, there's no reason to accept H.264-only.

Question 5

What pitfalls should I avoid when buying a cheap NVR?

Accepted Answer

The most common trap is buying a unit with a high channel count but inadequate recording throughput — the NVR simply can't handle all cameras at full resolution simultaneously, so it quietly drops quality or frame rate. Also watch out for: single HDD bays with no expansion, PoE budgets too low to power all ports at once, and proprietary camera ecosystems that lock you into one brand. Finally, check whether the manufacturer offers firmware updates and UK-based support — some budget brands disappear from the market within a year or two, leaving you with an unsupported device.

Question 6

Can I access my NVR remotely from a smartphone?

Accepted Answer

Yes — virtually all modern NVRs support remote access via a companion mobile app. TP-Link uses the VIGI app, Ubiquiti has the UniFi Protect app, Reolink has its own app, and Hanwha offers iVMS-style mobile clients. The quality of these apps varies considerably: Ubiquiti Protect's app is genuinely polished; some budget brands offer clunky interfaces with unreliable push notifications. Check app store reviews before buying if remote monitoring is a priority for you.

Question 7

Which NVR brands are best for 2026 UK installations?

Accepted Answer

For home and small business use, TP-Link VIGI offers the best value — competitive specs, solid software, and widely available from UK retailers like Amazon and Currys. Reolink is a strong runner-up for straightforward home setups. For commercial deployments, Hanwha delivers serious analytics and ONVIF flexibility at a more accessible price than Axis. Ubiquiti is excellent if you're already running a UniFi network. Axis remains the benchmark for enterprise-grade reliability, but the price premium is only justified for large-scale or mission-critical installations.

Network Video Recorders (NVR) Price Comparison

TP-Link VIGI 4 Channel PoE+ Network Video Recorder

TP-Link VIGI 8 Channel PoE+ Network Video Recorder

Axis 01618-001 network video recorder 1U

Axis S1148 2U Black, Grey

Ubiquiti Protect Network Video Recorder

Hanwha QRN-1620S network video recorder Black

Axis S1132 Black

Axis S3016 1U Black

TP-Link VIGI 16 Channel Network Video Recorder

TP-Link VIGI 8 Channel Network Video Recorder

Hanwha XRN-1620SB1 Black

Hanwha XRN-820S network video recorder Black

Ubiquiti UNVR-Pro-EU 2U Grey

Axis S1148 2U Black, Grey

Axis 0878-002 network video recorder Black

Hanwha XRN-1620B2 network video recorder Black

Axis 02403-002 network video recorder Black

Eufy HomeBase 3 White

TP-Link VIGI 32 Channel Network Video Recorder

Axis S3008 Mk II Black

Axis S3008 Mk II Black

Axis S3008 Mk II Black

Axis S3008 Mk II Black

Axis S3008 Mk II Black

Network Video Recorders (NVR) Price Comparison