Reolink P437 4K PoE Dome Camera, 5x Optical Zoom, IK10, IP67

The P437 records at up to 3840 x 2160 pixels from an 8 MP sensor. That extra resolution matters when you need to check a face at the gate, read a parcel label at the door or spot a vehicle in the driveway. Digital zoom on 4K footage holds up far better than on lower-resolution cameras, so you get more usable evidence from every clip without adding extra cameras to cover the same area.

The varifocal 2.7-13.5mm lens is the feature that sets this model apart. At the wide end it covers a yard, car park or shop floor; at the long end it brings distant entrances, gates or tills into close view. Because the zoom is optical, magnification comes from the lens itself rather than from cropping the image, so detail stays crisp. One camera can handle jobs that would otherwise need both a wide-angle and a telephoto unit.

Built-in infrared lighting reaches up to 30 metres, so the camera keeps watching after dark without any extra floodlights. That range comfortably covers a typical driveway, garden or building entrance. Paired with the 4K sensor and the zoom lens, it gives you night footage that is useful for checking who came and went, rather than a vague, grainy outline.

As a PoE camera, the P437 takes both power and network data through a single Ethernet cable. There's no need for a separate power socket near the mounting point, which makes installation on walls, eaves and ceilings much simpler. A wired connection also avoids the dropouts that Wi-Fi cameras can suffer, keeping your 4K stream stable. Note that you'll need a PoE switch, PoE injector or a PoE-capable recorder to power it.

The dome housing is rated IK10 for impact resistance and IP67 for protection against dust and water, so it's well suited to exposed outdoor spots where weather or tampering is a concern. The dome shape also makes it harder to tell at a glance exactly where the lens is pointing. With a net weight of 1.15 kg, it's a solid unit designed for permanent mounting rather than a lightweight plug-in gadget.

A built-in microSD slot accepts cards of up to 256 GB, so the camera can store footage locally on the device itself. H.265 compression keeps 4K files considerably smaller than older formats, which means more hours of recording on the same card and less strain on your network bandwidth. The manufacturer also lists an embedded rechargeable battery (accumulator), though no capacity is given.

This camera makes sense for homeowners with large plots, small businesses, warehouses and car parks: anywhere one camera needs to cover both a wide scene and a distant point of interest. If you already run a PoE network or plan to set one up, it slots in easily. It's also great value for anyone who wants optical zoom and a vandal-resistant housing without stepping up to pricier professional systems.