Anker’s eufy S4 doorbell uses a 180-degree view to keep visitors and parcels in frame

The wired eufy Video Doorbell S4 combines a panoramic 3K camera, digital subject tracking and local storage, aiming to eliminate blind spots without requiring a core recording subscription.

Anker has widened the playbook for doorbell cameras with the eufy Video Doorbell S4, a wired model built around a panoramic lens, digital subject tracking and local recording. The device is designed to address a familiar weakness in conventional video doorbells: they often show only the area directly in front of the lens, leaving parcels on the ground or visitors stepping to one side partially out of frame.

The S4 records in 3K and uses a 180-degree horizontal by 180-degree vertical field of view, creating a near half-sphere of coverage in front of the door. That broad perspective is intended to capture everything from the doorstep to the wall, as well as both a visitor’s face and any delivery left below the camera. According to Anker’s product information, the image can be digitally zoomed in the app by up to ten times, with the higher resolution helping to preserve detail when users crop into the wider scene.

To keep the image usable on a phone, Anker has added OmniTrack, which detects a person and digitally recentres the view as they move through the frame. The camera itself does not physically pan or tilt; instead, the app follows movement within the panoramic image. The company also offers a VR-style viewing mode, in which the user moves the phone to look around the scene. However, these functions are largely tied to the eufy app, while Apple Home, Google Home and Alexa are limited to a more conventional live view. Anker also says HomeBase S380 is required for Apple Home support.

False alerts are another target. The S4 combines radar with a passive infrared sensor, or PIR, which detects changes in heat. By using both sensors together, the camera is meant to better distinguish a person approaching the door from moving branches, rain or other environmental noise. Anker says the system can react in about half a second and claims a substantial reduction in nuisance alerts, although that figure is still a manufacturer claim rather than an independently verified result. The camera supports motion zones, and with HomeBase 3 it can classify events such as people, vehicles, animals and deliveries more precisely.

The S4 also leans on local storage rather than a mandatory cloud subscription. It includes 4GB of built-in eMMC storage, supports microSD expansion up to 1TB and can also work with HomeBase S380. For users who want 24/7 recording, the doorbell must be hard-wired to existing 16V to 24V AC, 30VA doorbell wiring, so this is not a battery-first product. The Dutch version is supplied with a chime, and users will need to check whether their transformer can provide enough power before installation. Anker says some notification previews may still use temporary cloud storage if that feature is enabled, so “local” does not automatically mean zero cloud involvement in every setup.

For night use, the S4 relies on dual spotlights to produce colour images in low light, rather than defaulting only to black-and-white infrared footage. That should make it easier to distinguish clothing, vehicles or parcels after dark. Anker is positioning the model for homes that already have suitable wiring and want a more complete view of the front entrance without paying a monthly fee for the core recording functions. Pre-orders are open, with shipping expected by the end of October 2026.