eufy Video Doorbell S4 Buying Guide: Everything You Need to Know

A courier leaves a parcel beside the door, a visitor steps out of the centre of the frame, or someone walks across the front garden instead of coming straight to the bell. These everyday situations can expose the limits of a narrow doorbell view.

The Anker eufy Wired Video Doorbell S4, new for 2026, uses a 180° × 180° panoramic camera, 3K resolution, and AI-powered tracking to keep more of your entrance in view.

This eufy Video Doorbell S4 buying guide covers the key things to consider before buying, where S4 stands apart and which types of UK homes are likely to benefit most.

Key Takeaways

• The Anker eufy Wired Video Doorbell S4 is designed for wider front-door coverage. Its 180° × 180° panoramic view keeps visitors, parcels and more of the surrounding entrance in the same scene, making it particularly useful for wider paths, driveways and front gardens.
• 3K video helps preserve useful detail across that wider view. OmniTrack™ AI Tracking and Auto-Framing also make moving visitors easier to follow without constantly searching across the full panoramic image.
• Wired power supports a more continuous monitoring setup. With 24/7 recording and expandable local storage, S4 is well suited to households that want to review more than individual motion-triggered events.
• S4 and E340 suit different priorities. S4 is the stronger fit for panoramic coverage, AI tracking and continuous wired monitoring, while E340 offers more installation flexibility and a dedicated downward-facing camera for parcels.

What Should You Look for in a Video Doorbell?

A good video doorbell should give you enough coverage and detail for your entrance without creating unnecessary alerts or installation hassle. There is no single model that suits every home, but these practical factors can help you compare them more meaningfully.

Coverage that matches your entrance

Around 120° horizontal coverage can be enough for a straightforward doorway or narrow path, while 150° or more is more useful for wider porches, driveways and front gardens. Vertical coverage of around 150°–180° also helps you see visitors from head to toe and check parcels left close to the doorstep.

Some doorbells use a single wide or panoramic camera, while others use two cameras, with a second downward-facing lens dedicated to parcels and the area directly below the bell. Neither approach is automatically better—the right one depends on what you need to keep in view.

Enough resolution for the area you are covering

1080p is still a practical starting point for seeing someone close to the door, while 2K gives you more detail for faces, clothing, and recorded clips. 3K+ becomes more useful when the camera is covering a very wide scene, as there are more pixels available when you zoom or crop into one part of the image.

Resolution is only part of the picture, though, so HDR and good low-light performance matter too.

Useful visibility after dark

If your doorway is well lit, standard infrared night vision may be all you need. For darker paths, driveways or front gardens, colour night vision or built-in lighting can make it easier to tell the difference between a person, a parcel or something moving in the background.

Alerts that do not become a nuisance

Motion detection is useful only if the alerts are relevant. Look for adjustable detection zones and recognition for things you actually care about, such as people or packages. In busier areas, systems that combine PIR, radar or AI recognition can help cut down on notifications caused by passing traffic, rain, insects or movement outside your chosen area.

A power setup that works for your home

A battery doorbell is usually the easier choice if you do not already have suitable wiring, while a wired model avoids regular recharging and can support more demanding features.

Storage without unexpected ongoing costs

Check whether recordings are saved locally, in the cloud or both, and whether useful features sit behind a subscription.

If you want to avoid monthly fees, video doorbells with local storage can be appealing, but it is still worth checking how much footage can be stored and whether longer recording modes need extra hardware or storage.

How Does the Anker eufy Wired Video Doorbell S4 Improve Front Door Visibility?

The Anker eufy Wired Video Doorbell S4 is designed to give you a clearer picture of what is happening around your entrance, not just directly in front of the bell. Its panoramic camera, 3K monitor resolution, and wired 24/7 recording work together to make more of that activity visible and easier to review.

See more with a 180° × 180° panoramic view

People do not always stand neatly in the centre of a doorbell camera. A courier may leave a parcel beside the doorstep, a visitor might wait off to one side, or someone may walk across a driveway or front path before approaching the door.

The eufy Video Doorbell S4 uses a single camera with a 180° horizontal and 180° vertical field of view, capturing the doorstep and more of the surrounding entrance in one panoramic scene.

The wide vertical view helps keep parcels near the ground visible, while the horizontal coverage is particularly useful for wider porches, driveways and front gardens.

Capture important details with 3K video resolution

A wide field of view is only useful if there is enough detail across the image. The S4 records at 3072 × 3072 3K resolution, giving its panoramic view more detail to work with when you need to look closely at one part of the scene.

In practical terms, S4 is designed to capture clear facial details within around 3 m, keep people visible at distances of up to 5 m, and provide broader visibility across an area extending to roughly 8 m. That can be useful if a visitor is waiting farther down the path or someone moves away from the door towards a driveway or front garden.

HDR helps balance bright and shadowed areas during the day, while Colour Night Vision with dual spotlights makes it easier to distinguish faces, parcels and surroundings after dark.

Keep watch day and night with wired 24/7 recording

Some activity happens without anyone pressing the bell. A parcel may be delivered while you are away, someone might approach and leave, or you may want to check what happened outside earlier in the day.

Because the S4 is wired and supports 24/7 recording, it can keep a more continuous record of the entrance instead of relying only on individual motion-triggered clips. This is especially useful if your doorbell also overlooks a frequently used path, driveway or delivery area.

How Does the eufy Video Doorbell S4 Keep Track of What Matters?

Seeing the whole entrance is useful, but you also need to know where to look when something happens. The Video Doorbell S4 combines AI tracking, radar and PIR sensing, and intelligent recognition to follow relevant activity and make alerts easier to understand.

Follow visitors with OmniTrack™ AI tracking

A visitor may ring the bell and then step back, move towards a parcel or walk across the entrance while waiting. OmniTrack™ AI Tracking follows moving people within the S4’s panoramic view, while Auto Framing adjusts the crop to keep the person centred rather than leaving them small at the edge of a wide image.

This is especially useful with a 180° panoramic view: you still have the wider context around the doorway, but you do not have to keep searching the full scene to see what the visitor is doing.

Detect relevant movement with radar and dual PIR sensors

A wide front-door view can also pick up plenty of movement that does not deserve your attention. The S4 combines radar with dual PIR sensors to detect activity around the entrance and help filter minor disturbances such as insects or rain.

For a home facing a busy path or an entrance exposed to changing weather, that extra filtering can help keep motion detection focused on activity you are more likely to care about.

You can also set detection zones if only part of the entrance needs monitoring.

Get more useful alerts with intelligent recognition

Once activity is detected, the AI Video Doorbell S4 can recognise people, faces, and packages rather than treating every movement in the same way.

That makes notifications more useful in everyday situations. You can tell whether someone has approached the door or a delivery has arrived without first opening every motion clip, while face recognition can provide more context when a familiar person appears.

Combined with OmniTrack™, the system does more than detect movement—it helps you quickly understand who or what needs your attention.

eufy Video Doorbell S4 vs. Video Doorbell E340: What’s the Difference?

When it comes to choosing the best video doorbell in the UK, E340 has long been one of the standout models in our range. Its dual-camera design has also earned wider recognition, including being named the best video doorbell overall by The Independent in its 2026 guide.

With S4 joining the range, the choice comes down to which approach better suits your entrance: E340’s dual-camera setup and flexible power options, or S4’s panoramic coverage, AI tracking and continuous wired recording.

Here’s how they compare:

The biggest difference is how the two doorbells cover your entrance. E340 uses a second downward-facing camera to keep a close eye on parcels directly below the bell.

S4 instead captures the visitor, doorstep and more of the surrounding path or driveway in one 180° × 180° panoramic view, then uses OmniTrack™ to follow people as they move through that scene.

Their power and recording options also suit different homes.

E340 can run on its removable battery or existing wiring, making it the more flexible choice where installation is a priority. S4 is wired only, but supports 24/7 recording and gives you more room for longer-term local storage with an SD card of up to 1TB.

So, choose S4 if you have suitable wiring and want wider coverage, continuous recording and AI visitor tracking. E340 remains a strong choice if you prefer battery flexibility or particularly value a dedicated parcel camera.

Who Should Buy the eufy Video Doorbell S4?

The S4 is a particularly good fit if you want more complete coverage around the entrance and already have suitable doorbell wiring.

• Homes with a wider or more open entrance: For a semi-detached or detached house with a driveway, front garden or wider path, the 180° × 180° panoramic view helps keep more of the approach in sight. It can also work well for a terraced house where you want to see both the doorstep and activity along the front path.
• Households with frequent visitors or deliveries: If couriers regularly leave parcels by the door or family and friends come and go throughout the week, panoramic coverage, package recognition and OmniTrack™ can make it easier to see what is happening without searching through a wide frame.
• Homes that want continuous front-door monitoring: S4 is wired and supports 24/7 recording, making it better suited to households that want to review activity throughout the day rather than rely only on individual motion-triggered clips.
• Users who prefer local storage and room to expand: S4 includes 4GB of built-in eMMC storage and supports an SD card of up to 1TB, which is useful if you plan to keep more 3K footage locally.

If you live in a flat or rented property, S4 can still be suitable, but the wired-only installation may be less practical if you cannot add or modify doorbell wiring. In that case, a battery-powered model may be easier to fit.

Final Thoughts

The Anker eufy Wired Video Doorbell S4 makes the most sense if you want your doorbell to monitor more than the immediate doorstep. Its panoramic view is well suited to wider entrances, while OmniTrack™ helps keep moving visitors easy to follow and wired 24/7 recording provides more context around events.

The main consideration is installation. If you already have compatible wiring and value continuous monitoring, S4 offers a more security-focused setup. If battery flexibility or a dedicated downward-facing parcel camera matters more, E340 may still be the better fit.

FAQs

Can I use eufy Video Doorbell S4 without existing wiring?

S4 is a wired-only video doorbell, so it needs a suitable wired power connection for normal use. It is not designed to operate as a standard battery-powered doorbell.

If your home does not already have suitable wiring, installation may require additional electrical work. If you want a simpler cordless setup, a battery-powered model may be more practical.

Is eufy Video Doorbell S4 suitable for large front gardens?

Yes, especially if you want to see more of a wide entrance, driveway or front path. Its 180° × 180° panoramic view helps capture more of the area around the door, while 3K resolution provides useful detail across the scene.

For a particularly deep or very large garden, however, a dedicated outdoor security camera may still be useful for areas farther from the entrance.

Does the eufy Video Doorbell S4 need HomeBase™?

No. Video Doorbell S4 can work as a standalone device, so a HomeBase™ is not required for normal doorbell use.

Pairing it with the HomeBase™ S380 gives you more room for local video storage and makes it easier to manage the S4 alongside other compatible eufy security devices. The HomeBase™ S380 offers 16GB of built-in storage and can be expanded up to 16TB.